Self-association processes of substituted alumolanes in non-polar solvents
Publication date: Available online 6 December 2017 Source:Journal of Organometallic Chemistry Author(s): Tatyana V. Tyumkina, Denis N. Islamov, Lyudmila V. Parfenova, Pavel V. Kovyazin, Leonard M. Khalilov, Usein M. Dzhemilev The processes of 1-ethyl-3-R-alumolane (R= n Alk, iBu, Ph, Bn, SiMe3, p-methoxybenzyl) self-association in toluene, benzene, cyclohexane and dichloromethane were studied for the first time by multinuclear NMR spectroscopy and quantum chemical modeling. Using 1H, 13C, and 27Al NMR spectroscopy in non-polar solvents, the examined alumolanes were identified as an equilibrium mixture of isomeric dimers f...
Source: Journal of Organometallic Chemistry - December 6, 2017 Category: Chemistry Source Type: research

The effect of an acylphosphine ligand on the rhodium-catalyzed hydrosilylation of alkenes
Publication date: Available online 6 December 2017 Source:Journal of Organometallic Chemistry Author(s): Jiayun Li, Chuang Yang, Ying Bai, Xiaoling Yang, Yu Liu, Jiajian Peng We synthesized a series of acylphosphines and investigated the hydrosilylation of alkenes that were catalyzed using RhCl3/acylphosphine. The results indicated that RhCl3/(diphenylphosphino) (phenyl)methanone exhibited higher activity as well as higher levels of β–adduct selectivity. Graphical abstract (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - December 6, 2017 Category: Chemistry Source Type: research

Synthesis of 3-sulfenylindoles by Pd (II) nanoclusters confined within metal −organic framework fibers in aqueous solution
Publication date: Available online 6 December 2017 Source:Journal of Organometallic Chemistry Author(s): Rahele Zhiani, Seyed Mohsen Sadeghzadeh, Shokufe Emrani, Maryam Abasian We have found that fibrous nanosilica (KCC-1) can used as a excellent support for the synthesis of highly sparse nanoparticles. KCC-1 has high surface area that was functionalized with 1,3-bis(dimethylthiocarbamoyloxy)benzene groups acting as the strong performers so that the Pd (II) was complex without aggregation on the fibers of the KCC-1 microspheres (KCC-1/BTB/Pd). For synthesis of 3-sulfenylindoles from aryl iodide, indoles, and thiourea used...
Source: Journal of Organometallic Chemistry - December 6, 2017 Category: Chemistry Source Type: research

Acid-catalyzed epoxide alcoholysis in the presence of indenyl molybdenum carbonyl complexes
Publication date: Available online 6 December 2017 Source:Journal of Organometallic Chemistry Author(s): Sofia M. Bruno, Isabel S. Gonçalves, Martyn Pillinger, Carlos C. Romão, Anabela A. Valente The indenyl molybdenum carbonyl complexes [IndMo(CO)2(L) n ]BF4 (L = NCMe with n = 3 (1), 2,2′-bipyridine (2) or 1,4,7-trimethyltriazacyclononane (3) with n = 1) promote epoxide alcoholysis under moderate reaction conditions. Complexes 1 and 2 showed the best performance for the alcoholysis of styrene oxide with different alcohol nucleophiles (acting as both reactant and solvent),...
Source: Journal of Organometallic Chemistry - December 6, 2017 Category: Chemistry Source Type: research

1,6-Methano[10]annulene as prospective organometallic ligand from the annulene family: A DFT study of transition metal π-complexes and their inter-ring haptotropic rearrangements
Publication date: Available online 2 December 2017 Source:Journal of Organometallic Chemistry Author(s): I.P. Gloriozov, N.S. Zhulyaev, F. Gam, J.-Y. Saillard, Yu.F. Oprunenko The structural peculiarities (C1-C6 distances, bending of the ligand, conformation of organometallic group relative to the ligand, etc.), the isomerism and the mechanisms of inter-ring haptotropic rearrangements (IRHR) in Cr(CO)3 and CoCp complexes of 1,6-methano[10]annulene were investigated by DFT. An activation barrier of 28.0 kcal/mol, lower than that corresponding to naphthalene, was computed for the η6, η6-IRHR in the mononuclear ...
Source: Journal of Organometallic Chemistry - December 3, 2017 Category: Chemistry Source Type: research

Successive alkylation of PtII by RI to form bis-organoplatinum(IV) derivatives as key steps for cross-electrophile coupling
Publication date: Available online 2 December 2017 Source:Journal of Organometallic Chemistry Author(s): Oleg V. Khazipov, Tatyana V. Krasnyakova, Denis V. Nikitenko, Marina A. Merzlikina, Ekaterina V. Khomutova, Serge A. Mitchenko A solvent-specific reduction of PtIV iodo complexes into PtII by iodide ions was found: in acetone, PtIV iodo complexes are almost quantitatively reduced into PtII, and iodine, which is formed upon the reduction, is bound in a poorly soluble polymeric complex with NaI and acetone. The revealed solvent-specific reduction of PtIV into PtII was used for sequential alkylation of PtII iodo complexes...
Source: Journal of Organometallic Chemistry - December 3, 2017 Category: Chemistry Source Type: research

Steric effects enforce double stereoselective N-coordination in twelve-membered binuclear palladium(II)-complexes containing chiral bridging aminoalkyl-phosphine ligands
Publication date: Available online 28 November 2017 Source:Journal of Organometallic Chemistry Author(s): Zsófia Császár, Kristóf Stágel, Szabolcs Balogh, Attila Bényei, György Lendvay, Gergely Farkas, József Bakos The configuration of the ligand's N-substituent was found to determine the stoichiometry and strict stereoselectivity of N-coordination in twelve-membered palladium dimers 2a-b. The novel palladium(II)-complexes 2a-b have been synthesized in the reaction of [Pd(COD)Cl2] and optically pure (S,S)-pentane-2,4-diyl based aminoalkyl-phosphine ligands Ph2PCH(CH3)C...
Source: Journal of Organometallic Chemistry - November 30, 2017 Category: Chemistry Source Type: research

Mono and dinuclear bis(ortho-tolyl)platinum(II) compounds containing diethyl sulfide ligands: Synthesis, DFT studies and use as precursors in cycloplatination reactions
Publication date: Available online 26 November 2017 Source:Journal of Organometallic Chemistry Author(s): Ramón Bosque, Margarita Crespo, Anna Escolà, Mercè Font-Bardia The synthesis of bis(ortho-tolyl)platinum(II) compounds containing diethyl sulfide ligands from [PtCl2(SEt2)2] and ortho-tolyl-lithium is presented. Formation of a dimer [Pt(4-MeC6H4)2(μ-SEt2)]2 is evidenced by 1H NMR and HR-MS-ESI(+) spectra and the monomer trans-anti-[Pt(2-MeC6H4)2(SEt2)2] is characterized by X-ray diffraction analyses. Theoretical studies indicate that dimerization of the most stable form of the monomer (cis-syn)...
Source: Journal of Organometallic Chemistry - November 27, 2017 Category: Chemistry Source Type: research

Systematics of boron halide complexes with dichalcogenoether ligands – Synthesis, structures and reaction chemistry
Publication date: Available online 26 November 2017 Source:Journal of Organometallic Chemistry Author(s): Coco K.Y.A. Okio, William Levason, Francesco M. Monzittu, Gillian Reid The complexes [BX3(μ-L−L)BX3] (X = Cl, Br, I; L−L = EtS(CH2)2SEt, MeSe(CH2)2SeMe), [BX′3{o-C6H4(SMe)2}] (X’ = Cl, I), [(BBr3)2{o-C6H4(SMe)2}], [(BBr3)2{o-C6H4(SeMe)2}] and [BI3{o-C6H4(SeMe)2}] have been prepared as moisture-sensitive pale solids by reaction of the appropriate BX3 with the dichalcogenoether in anhydrous n-hexane solution, and characterised by microanalysis, IR and multinuclear...
Source: Journal of Organometallic Chemistry - November 27, 2017 Category: Chemistry Source Type: research

Design, synthesis and fungicidal activity studies of 3-ferrocenyl-N-acryloylmorpholine
Publication date: Available online 26 November 2017 Source:Journal of Organometallic Chemistry Author(s): Peiqi Chen, Chunjuan Liu, Jianfeng Hu, Hao Zhang, Ranfeng Sun Ferrocene and its derivatives have been widely used in many fields and also used to modify and improve the performance. Particularly, their low toxicity also attract much attention in medical and pesticide fields. In order to get fungicides with higher biological activity, ferrocenyl were introduced into the skeleton of dimethomorph instead of phenyl and a series of 3-ferrocenyl-N-acryloylmorpholine were synthesized. The fungicidal bioassay results indicate...
Source: Journal of Organometallic Chemistry - November 27, 2017 Category: Chemistry Source Type: research

A highly recoverable polymer-supported ionic salen-palladium complex as a catalyst for the Suzuki-Miyaura cross coupling in neat water
Publication date: Available online 27 November 2017 Source:Journal of Organometallic Chemistry Author(s): Kamlesh Rudreshwar Balinge, Avinash Ganesh Khiratkar, Pundlik Rambhau Bhagat A polymer supported Pd-salen complex (PS-Pd-salen) was synthesized and characterized by Fourier transform infrared spectroscopy (FT-IR), Fourier-transform NMR spectroscopy (FT-NMR), thermal gravimetric analysis (TGA), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), surface area and pore size distribution by Brunauer-Emmett-Teller (BET). The heterogeneous catalytic performance of the PS-Pd-salen for the Suzuki-M...
Source: Journal of Organometallic Chemistry - November 27, 2017 Category: Chemistry Source Type: research

Oxidative coupling of benzoic acids with alkynes: Catalyst design and selectivity
Publication date: Available online 20 November 2017 Source:Journal of Organometallic Chemistry Author(s): Dmitry A. Loginov, Vitalii E. Konoplev The review covers the mechanism insights and recent achievements in catalyst design for oxidative coupling of benzoic acids and alkynes. This reaction is a straightforward effective approach to synthesis of isocoumarins or naphthalenes. The influence of catalyst nature and reaction conditions on the selectivity is also discussed. This contribution aims to focus attention of organic chemists on the possibility to use a wide range of catalysts, without being limited by only convent...
Source: Journal of Organometallic Chemistry - November 23, 2017 Category: Chemistry Source Type: research

Catalytic specificity of linear polystyrene-stabilized Pd nanoparticles during Ullmann coupling reaction in water and the associated mechanism
Publication date: Available online 22 November 2017 Source:Journal of Organometallic Chemistry Author(s): Atsushi Ohtaka, Akira Sakon, Asuka Yasui, Taira Kawaguchi, Go Hamasaka, Yasuhiro Uozumi, Tsutomu Shinagawa, Osamu Shimomura, Ryôki Nomura In the present work, heterogeneous Pd nanoparticle catalysts supported on linear polystyrene (PS-PdNPs) were used to promote Ullmann coupling reactions in water. The coupling reaction of 4-bromotoluene proceeded readily in the presence of methanol as the external reductant to give 4,4'-dimethylbiphenyl in 85% yield. In contrast, only a trace of the coupling product was obtaine...
Source: Journal of Organometallic Chemistry - November 23, 2017 Category: Chemistry Source Type: research

Synthesis of rhodacarboranes containing σ- and π-carboranyl ligands in one molecule
Publication date: Available online 22 November 2017 Source:Journal of Organometallic Chemistry Author(s): Sergey V. Timofeev, Olga B. Zhidkova, Igor B. Sivaev, Zoya A. Starikova, Kyrill Yu Suponitsky, Hong Yan, Vladimir I. Bregadze 16-Electron half-sandwich rhodium complexes containing carborane ligands of two different σ- and π types 3,3-μ-(1′,2′-C2B10H10-1′,2′-S2-)-4-L-3,1,2-RhC2B9H10 (L = SMe2, NMe3, NMe2CH2Ph) were synthesized for the first time. The solid state structures of 3-(COD)-4-PhCH2Me2N-3,1,2-RhC2B9H10 and 3,3-μ-(1′,2′-C2B10H10-1′,2′-S2-...
Source: Journal of Organometallic Chemistry - November 23, 2017 Category: Chemistry Source Type: research

Design strategies for metal-organic frameworks selectively capturing harmful gases
Publication date: Available online 23 November 2017 Source:Journal of Organometallic Chemistry Author(s): Ki Chul Kim Metal-organic frameworks (MOFs) have attracted a special attention to the selective capture of harmful gases from air, owing to the presence of a high density of active surfaces that can be tailored by an appropriate modification. In this paper, recent studies on appropriate approaches for the selective capture of harmful gases (NH3, CO, H2S, NOx, SOx, Cl2, etc.) performed via experimental and computational methods are comprehensively reviewed with an aim of establishing well-designed strategies for the sp...
Source: Journal of Organometallic Chemistry - November 23, 2017 Category: Chemistry Source Type: research

Novel ferrocenylphosphino sulfonates: Synthesis, crystal structure and preliminary application as ligands in aqueous catalysis
Publication date: Available online 23 November 2017 Source:Journal of Organometallic Chemistry Author(s): Diego Sierra, Claudia Contreras, Javier Francos, Johana Gómez, Victorio Cadierno The synthesis and characterization of three novel ferrocenylphosphino sulfonates, namely [(η 5-C5H3PR2(SO3 i-Pr))Fe(η5-C5H5)] (R = Ph, p-Tol, Cy), is presented along with their solid-state X-ray crystal structures. Preliminary studies on the utility of these compounds as auxiliary ligands in aqueous catalysis, in particular for the ruthenium-catalyzed ortho-arylation of 2-phenylpyridine, are also discussed. (Sourc...
Source: Journal of Organometallic Chemistry - November 23, 2017 Category: Chemistry Source Type: research

Near-infrared absorbing metal functionalized diketopyrrolopyrroles
Publication date: 1 December 2017 Source:Journal of Organometallic Chemistry, Volume 852 Author(s): Yuvraj Patil, Jivan Shinde, Rajneesh Misra A symmetrical cobalt-dithiolene functionalized diketopyrrolopyrrole (DPP) Co-DPP-Co was designed and synthesized. Its photophysical, thermal, electrochemical and computational studies were compared with symmetrical ferrocenyl Fc-DPP-Fc. The electronic absorption spectrum of Co-DPP-Co exhibited absorption in Vis-NIR region with shoulder band in longer wavelength region. The thermogravimetric analysis shows good thermal stability of Co-DPP-Co. The density functional theory (DFT) inve...
Source: Journal of Organometallic Chemistry - November 23, 2017 Category: Chemistry Source Type: research

1,2-Bis(dimethylsilyl)phenylidene bridged zirconocene and hafnocene dichloride complexes as precatalysts for ethylene polymerization
Publication date: 1 January 2018 Source:Journal of Organometallic Chemistry, Volume 854 Author(s): Mohamed E.M. Abdelbagi, Wolfgang Milius, Swastik Mondal, Sander van Smaalen, Helmut G. Alt The synthesis and characterization of a new class of ansa bis(indenyl) complexes of zirconium and hafnium is described. Two indenyl moieties are linked at the 1-,1′-positions via a 1,2-bis(dimethylsilyl)benzene unit. The ligand precursor was prepared via three reaction steps including Grignard coupling of chlorodimethylsilane and 1,2-dibromobenzene, PdCl2-catalyzed chlorination, and the reaction with indenyllithium. The zirconium...
Source: Journal of Organometallic Chemistry - November 23, 2017 Category: Chemistry Source Type: research

Ether and coumarin –functionalized (benz)imidazolium salts and their silver(I)–N–heterocyclic carbene complexes: Synthesis, characterization, crystal structures and antimicrobial studies
Publication date: 1 January 2018 Source:Journal of Organometallic Chemistry, Volume 854 Author(s): Gautam Achar, Purvika Agarwal, K.N. Brinda, Jan Grzegorz Małecki, Rangappa S. Keri, Srinivasa Budagumpi To explore the impact of different coumarin substituted N–heterocyclic carbene (NHC) ligand backbones on the biological applications of corresponding silver(I) complexes, a series of structurally related ether–functionalized imidazolium (3–5) and benzimidazolium (6–8) hexafluorophosphate salts bearing 6–methylcoumarin, 6–chlorocoumarin and 5,6–benzannulated coumarin substituents, ...
Source: Journal of Organometallic Chemistry - November 23, 2017 Category: Chemistry Source Type: research

Synthesis, characterization and biological applications of substituted pyrazolone core based platinum(II) organometallic compounds
Publication date: 1 January 2018 Source:Journal of Organometallic Chemistry, Volume 854 Author(s): Miral V. Lunagariya, Khyati P. Thakor, Darshana N. Kanthecha, Mohan N. Patel New series of organometallic platinum(II) compounds (I-VI) containing the 2-phenyl-5-methyl pyrazole-3-one derivatives ligands (L1-L6) were synthesized and characterized by spectroscopic and physicochemical techniques. The synthesized compounds were screen for their in vitro antibacterial activity against two Gram(+ve) and three Gram(−ve) bacterial species. In vitro cytotoxicity against brine shrimp lethality bioassay and in vit...
Source: Journal of Organometallic Chemistry - November 23, 2017 Category: Chemistry Source Type: research

Non-rigid coordination behavior of the ambidentate phosphinoyldithioformate ligands, [S2CP(O)R2]-, (R  = Ph, CH2Ph) in organometallic Lead(IV) and Mercury(II) compounds
Publication date: 1 January 2018 Source:Journal of Organometallic Chemistry, Volume 854 Author(s): Sigurjon N. Ólafsson, Águst Kvaran, Sigridur Jonsdottir, Sigridur G. Suman A series of phosphinoyldithioformate compounds were synthesized from metathesis reactions of K[R2P(O)CS2], and R'nPbCl4-n and R’HgCl. The compounds isolated were characterized using infrared, UV and multinuclear NMR (1H, 13C, and 31P) spectroscopy. Structural diversity of these compounds is revealed through analysis of the infrared and NMR spectroscopy, where variable temperature 31P NMR spectroscopy data of 6 reveals non-rigid coo...
Source: Journal of Organometallic Chemistry - November 23, 2017 Category: Chemistry Source Type: research

Corrigendum to “Synthesis, structural characterization, DNA binding and antioxidant potency of new ferrocene incorporated acyl ureas” [J. Organomet. Chem. 797, 15 November 2015, 131–139]
Publication date: 15 December 2017 Source:Journal of Organometallic Chemistry, Volume 853 Author(s): Faiza Asghar, Amin Badshah, Raja Azadar Hussain, Manzar ohail, Kamran Akbar, Ian Sydney Butler (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - November 17, 2017 Category: Chemistry Source Type: research

Bis-diorganotin(IV) complexes with binucleating hydrazones derived from a methylene-bis-aromatic aldehyde as linker: Synthesis, spectral and structural characterization, antibacterial activity and DNA cleavage studies
Publication date: 15 December 2017 Source:Journal of Organometallic Chemistry, Volume 853 Author(s): Hamidreza Zafarian, Tahereh Sedaghat, Hossein Motamedi, Damian Trzybiński, Krzysztof Woźniak Two bis-hydrazone, H4La and H4Lb, have been synthesized from reaction of 5,5′-methylene-bis-salicylaldehyde with benzhydrazide and furan-2-carbohydrazide, respectively. New organotin(IV) complexes, (R2Sn)2L [L = La: R = Me (1), Ph (2); L = Lb: R = Me (3), Ph (4)] have been synthesized by reaction of dihydrazone ligands with R2SnCl2 (R = Me or Ph). The synthesized compounds h...
Source: Journal of Organometallic Chemistry - November 17, 2017 Category: Chemistry Source Type: research

Half-sandwich d6 metal complexes comprising of 2-substituted-1,8-napthyridine ligands with unexpected bonding modes: Synthesis, structural and anti-cancer studies
Publication date: 1 January 2018 Source:Journal of Organometallic Chemistry, Volume 854 Author(s): Sanjay Adhikari, Omar Hussain, Roger M. Phillips, Mohan Rao Kollipara The Friedländer condensation reaction between 2-aminonicotinealdehyde and acetophenone derivatives in presence of potassium hydroxide yielded 2-substituted-1,8-napthyridine derivatives viz. 2-(1,8-napthyridin-2-yl)phenol (PHNp), 2-(1,8-napthyridin-2-yl)aniline (AnNp) and 2-(pyridine-4-yl)-1,8-napthyridine (PyNp). Treatment of the chloro-bridged dimers [(arene)MCl2]2 [arene = p-cymene, Cp*; M = Ru, Rh and Ir] with two equivalents of...
Source: Journal of Organometallic Chemistry - November 17, 2017 Category: Chemistry Source Type: research

Mechanistic study on the Rh(III)-catalyzed synthesis of indolines via selective O-atom transfer of arylnitrones: Origins of the regioselectivity and the improved yield with pivalic acid additive
Publication date: 1 January 2018 Source:Journal of Organometallic Chemistry, Volume 854 Author(s): Hongliang Wang, Chengbu Liu, Dongju Zhang Recent development on Rh(III)-catalyzed synthesis of indolines from arylnitrones and alkynes provides an efficient redox-neutral method integrating C–H activation with O-atom transfer. Here density functional theory calculations were performed on the mechanism of a representative model system: [Cp*Rh]2+-catalyzed reaction of phenylnitrone with 1-phenylpropyne. The results suggest that the catalytic cycle involves a Rh(III)–Rh(I)–Rh(III) transformation and consists o...
Source: Journal of Organometallic Chemistry - November 17, 2017 Category: Chemistry Source Type: research

Organometallic ruthenium(II) complexes containing NS donor Schiff bases: Synthesis, structure, electrochemistry, DNA/BSA binding, DNA cleavage, radical scavenging and antibacterial activities
Publication date: 1 January 2018 Source:Journal of Organometallic Chemistry, Volume 854 Author(s): G. Devagi, F. Dallemer, P. Kalaivani, R. Prabhakaran Four new cyclopentadienylruthenium(II)-acetophenone-4(N)-substituted thiosemi-carbazone complexes, with the general formula [Ru(ƞ5-C5H5)(H-Aptsc)PPh3].Cl (1), [Ru(ƞ5-C5H5)(H-Apmtsc)PPh3].Cl (2), [Ru(ƞ5-C5H5)(H-Ap-etsc)PPh3].Cl (3) and [Ru(ƞ5-C5H5)(H-Ap-ptsc)PPh3].Cl (4) were synthesised and characterised (1H NMR, 13C NMR, IR and electronic spectroscopy). The molecular structure of representative complexes 2 and 3 was confirmed by single crystal X-Ray diffraction techni...
Source: Journal of Organometallic Chemistry - November 15, 2017 Category: Chemistry Source Type: research

New (aminomethyl)phosphines via selective hydrophosphination and/or phosphorus based Mannich condensation reactions
Publication date: 15 December 2017 Source:Journal of Organometallic Chemistry, Volume 853 Author(s): Bo Cao, Mark R.J. Elsegood, Nuria Lastra-Calvo, Martin B. Smith Controlled stepwise reaction of a geminal substituted alkene or primary amine group afforded a small library of new functionalised tertiary and ditertiary phosphines. Accordingly, Mannich based condensation of the commercially available disubstituted arene C6H4(NH2){2-C(Me)=CH2} with HOCH2PR2 (R2 = Cg: 1,3,5,7-tetramethyl-2,4,8-trioxa-6-phosphaadamantyl; Ph2) afforded the (aminomethyl)phosphines C6H4(NHCH2PCg){2-C(Me)=CH2} L 1 and C6H4(NHCH2PPh2){2-C...
Source: Journal of Organometallic Chemistry - November 9, 2017 Category: Chemistry Source Type: research

Anionic polymerization of multi-vinylferrocenes
Publication date: 15 December 2017 Source:Journal of Organometallic Chemistry, Volume 853 Author(s): Khaled Al Khalyfeh, Jonas F. Nawroth, Martin Uhlemann, Ulrich Stoeck, Lars Giebeler, Rainer Jordan, Alexander Hildebrandt Protocols for anionic polymerization of vinylferrocenes in bulk (b) and solution (s) are reported. Polymerization of vinylferrocenes bearing one or multiple (2–4) vinyl groups yielded linear polyvinylferrocene PVF-1(b, s) or cross-linked polyvinylferrocenes PVF-2 – PVF-4(b, s), respectively. Furthermore, copolymerization of mono-with multifunctional vinylferrocenes produced cross-linked copo...
Source: Journal of Organometallic Chemistry - November 8, 2017 Category: Chemistry Source Type: research

Synergetic oxidation of ethylbenzene to acetophenone catalyzed by manganese(II) complexes bearing pendant iodophenyl groups
Publication date: 15 December 2017 Source:Journal of Organometallic Chemistry, Volume 853 Author(s): Yiwen Yang, Wei Zhong, Binmei Nie, Jiangmin Chen, Zhenhong Wei, Xiaoming Liu Five tetradentate ligands, L 1–5 , bearing the moiety of bis(pyridin-2-ylmethyl)amine (1) and their complexes with Mn(II) were prepared. All the compounds and metal complexes were appropriately characterized. The five manganese(II) complexes (3a–e) are of the formula, [Mn(II)L x Cl2] (x = 1-5), as suggested by the crystal structure of complexes 3b and 3c. All the ligands except for L 3 possess two iodobenzene groups via an et...
Source: Journal of Organometallic Chemistry - November 7, 2017 Category: Chemistry Source Type: research

Tetra N-heterocyclic carbene dinuclear silver(I) complexes as potential anticancer agents: Synthesis and in  vitro anticancer studies
Publication date: 15 December 2017 Source:Journal of Organometallic Chemistry, Volume 853 Author(s): Tabinda Fatima, Rosenani A. Haque, Muhammad Adnan Iqbal, Ashfaq Ahmad, Loiy Elsir Ahmed Hassan, Mohamad Taleb-Agha, Mohamed B. Khadeer Ahamed, A.M.S. Abdul Majid, Mohd. R. Razali Present study involves the synthesis and characterization of a newly designed tetrakis benzimidazolium salts, 1–5 and their respective tetra N-heterocyclic carbene (NHC) dinuclear silver(I) complexes, 6–10 with different terminal substituents that constructed from either cyclopentyl, benzyl, n-butyl, 2-methylene benzonitrile or n-decyl...
Source: Journal of Organometallic Chemistry - November 7, 2017 Category: Chemistry Source Type: research

Synthesis and characterization of new (dimethylsilyl)phenoxy and (dimethyl(vinyl)silyl)phenoxy substituted cyclotriphosphazenes
Publication date: 15 December 2017 Source:Journal of Organometallic Chemistry, Volume 853 Author(s): Rafał Januszewski, Michał Dutkiewicz, Maciej Kubicki, Grzegorz Dutkiewicz, Hieronim Maciejewski, Bogdan Marciniec The routes of synthesis, as well as, spectroscopic and X-ray diffraction characterization of a new group of bis- or hexakis-4-(dimethyl(vinyl)silyl)phenoxy and 4-(dimethylsilyl)phenoxy-substituted cyclotriphosphazenes as a versatile starting substrates for the synthesis of a variety of organic cyclophosphazene derivatives, via catalytic hydrosilylation or silylative coupling processes, is presented. Graphical...
Source: Journal of Organometallic Chemistry - November 6, 2017 Category: Chemistry Source Type: research

Novel binuclear diorganotin(IV) complexes of adipic acid dihydrazone containing flexible aliphatic spacer: X-ray structural characterization of dimethyltin(IV) complex
Publication date: 15 December 2017 Source:Journal of Organometallic Chemistry, Volume 853 Author(s): Sundeep Kumar, Mala Nath Three novel binuclear diorganotin(IV) derivatives formulated as (R2Sn)2L (where R = Me, Bu and Ph) of a new symmetrical adipodihyrazone ligand, 1,6-bis(5-hydroxy-3-methyl-5-phenyl-4,5-dihydro-1H-pyrazol-1-yl)hexane-1,6-dione (H4L) derived from the Schiff base condensation of adipic acid dihydrazide and benzoylacetone in a 1:2 M ratio were synthesized. The micro-analysis and various spectroscopic techniques viz., infrared (IR), multinuclear (1H, 13C and 119Sn) magnetic resonance (NMR)...
Source: Journal of Organometallic Chemistry - November 6, 2017 Category: Chemistry Source Type: research

Synthesis and reactivity of iron hydride with [P, Se]-chelate ligand
Publication date: 15 December 2017 Source:Journal of Organometallic Chemistry, Volume 853 Author(s): Hongwei Zhou, Huaxin Luan, Tingting Zheng, Xinghao Qi, Hongjian Sun, Xiaoyan Li, Olaf Fuhr, Dieter Fenske The synthesis and reactivity of a novel iron hydride supported by [P, Se]-chelate ligand have been explored. Iron hydride o-(Ph2P)C6H4SeFeH(PMe3)3 (1) was obtained via the reaction of (o-PPh2)PhSeH with Fe(PMe3)4. Complex 1 reacted with HCl or acetylacetone delivered a bis-chelated iron complex (o-(Ph2P)C6H4Se)2Fe(PMe3) (2). Through the substitution reaction of PMe3 ligand of complex 1 by CO, monocarbonyl iron(II) hydr...
Source: Journal of Organometallic Chemistry - November 6, 2017 Category: Chemistry Source Type: research

Phosphorus-nitrogen compounds. part 38. Syntheses, characterizations, cytotoxic, antituberculosis and antimicrobial activities and DNA interactions of spirocyclotetraphosphazenes with bis-ferrocenyl pendant arms
Publication date: 15 December 2017 Source:Journal of Organometallic Chemistry, Volume 853 Author(s): Gamze Elmas, Aytuğ Okumuş, Reşit Cemaloğlu, Zeynel Kılıç, Süheyla Pınar Çelik, Leyla Açık, Beste Çağdaş Tunalı, Mustafa Türk, Nebahat Aytuna Çerçi, Remziye Güzel, Tuncer Hökelek The reactions of N4P4Cl8 (1), with two equimolar amounts of N-(1-ferrocenylmethyl)-N-methyl-propylenediamine gave the monoferrocenyl-spiro (as a byproduct), bisferrocenyl-2-trans-6-dispiro (2) and bisferrocenyl-2-cis-6-dispiro (3) cyclotetraphosphazenes. The 2-trans-6-dispiro ...
Source: Journal of Organometallic Chemistry - November 6, 2017 Category: Chemistry Source Type: research

Comparative investigation of interactions between two ruthenium(II) arene PTA type complexes with curcuminoid ligands and human serum albumin
Publication date: 15 December 2017 Source:Journal of Organometallic Chemistry, Volume 853 Author(s): Shan Huang, Jiangning Xie, Wei Su, Yi Liu, Xiaohui Wang, Baoqing Hu, Qi Xiao Ruthenium(II) arene PTA (1,3,5-triaza-7-phosphaadamantane) type complexes with curcuminoid ligands have attracted great attentions in biomedical areas. Investigation of structural influences helps in understanding the biological effects of these complexes. To research their structural influences, the interactions between two ruthenium(II) arene PTA type complexes with curcuminoid ligands and human serum albumin (HSA) were systematically investigat...
Source: Journal of Organometallic Chemistry - November 6, 2017 Category: Chemistry Source Type: research

Mercuration of ferrocenyl-p-tolyl sulfoxide and its conversion to 1,2-disubstituted ferrocenes
Publication date: 15 December 2017 Source:Journal of Organometallic Chemistry, Volume 853 Author(s): Venkatesan Sathesh, Ramu V. Ranga Naidu Chinta, Ramesh Mamidala, Vanga Mukundam, Kunchala Dhanunjayarao, Krishnan Venkatasubbaiah 1-(p-Tolylsulfinyl)-2-(chloromercurio)ferrocene (2) was prepared by direct mercuration of ferrocenylsulfoxide (1). This reaction can be performed at room temperature in open air. Cross-coupling reactions of compound 2 and aryl halides especially aryl iodides resulted in 1,2-disubstituted ferrocene derivatives with moderate to good yields. Graphical abstract (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - November 6, 2017 Category: Chemistry Source Type: research

Ruthenium complexes with a pyrazole-phosphine ligand
Publication date: 15 December 2017 Source:Journal of Organometallic Chemistry, Volume 853 Author(s): Iryna D. Alshakova, Ilya Korobkov, Lyudmila G. Kuzmina, Georgii I. Nikonov A bifunctional pyrazole-based phosphine ligand was synthesized and applied to preparation of a series of ruthenium complexes. Application of the latter to transfer hydrogenation of acetophenone showed moderate activity. X-ray studies of two ruthenium complexes were carried out. Graphical abstract (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - November 6, 2017 Category: Chemistry Source Type: research

Copper-catalyzed azide –alkyne cycloaddition (CuAAC) under mild condition in water: Synthesis, catalytic application and biological activities
Publication date: 15 December 2017 Source:Journal of Organometallic Chemistry, Volume 853 Author(s): N. Touj, A. Chakchouk-Mtibaa, L. Mansour, A.H. Harrath, J.H. Al-Tamimi, I. Özdemir, L. Mellouli, S. Yaşar, N. Hamdi A series of Cu-N-heterocyclic carbene (Cu-NHC) complexes, 3a-c, were synthesized and characterized by spectroscopic methods such as NMR, HRMS and elemental analysis. The performance of these (Cu-NHC) complexes, 3a-c showed excellent activity in 1,3-dipolar cycloaddition reactions between alkynes and azides to obtain 1,4-disubstituted triazoles 6a-d in 80%–91% isolated yields. All obtained complexe...
Source: Journal of Organometallic Chemistry - November 6, 2017 Category: Chemistry Source Type: research

Synthesis, characterization and photophysical properties of a new Cu2+ selective phosphorescent sensor
Publication date: 15 December 2017 Source:Journal of Organometallic Chemistry, Volume 853 Author(s): Tianzhi Yu, Qianguang Yang, Zeyang Zhu, Yuling Zhao, Xiaoxiao Liu, Chengjin Wei, Hui Zhang A new Cu(II) selective phosphorescent sensor based on a cationic iridium(III) complex was synthesized and characterized. Compared with other commonly coexisting metal ions, the Ir(III) complex displayed significant phosphorescence quenching for detecting Cu2+ with a 1:1 stoichiometry in MeOH/H2O (1:1, v/v) solution. Upon addition of Cu2+, the rapid quenching of emission intensity provided a sensitive method for detection of Cu2+. The...
Source: Journal of Organometallic Chemistry - November 6, 2017 Category: Chemistry Source Type: research

One-step synthesis of Pd-NPs@Cu2(BDC)2DABCO as efficient heterogeneous catalyst for the Suzuki –Miyaura cross-coupling reaction
Publication date: 15 December 2017 Source:Journal of Organometallic Chemistry, Volume 853 Author(s): Sharareh Tahmasebi, Javad Mokhtari, Mohammad Reza Naimi-Jamal, Armaqan Khosravi, Leila Panahi A new heterogeneous palladium catalyst has been synthesized by one-step encapsulation in nanoporous metal-organic framework Cu2(BDC)2(DABCO) (BDC = 1,4-benzenedicarboxylate, DABCO = 1,4-diazabicyclo[2.2.2]octane) under a temperature control program. Supported Pd nanoparticles (Pd-NPs@Cu2(BDC)2(DABCO)) were characterized by X-ray diffraction, BET analysis, field emission scanning electron microscopy, transmissio...
Source: Journal of Organometallic Chemistry - November 6, 2017 Category: Chemistry Source Type: research

Mononuclear homoleptic organotin(IV) dithiocarbamates: Syntheses, structures and antimicrobial activities
Publication date: 15 December 2017 Source:Journal of Organometallic Chemistry, Volume 853 Author(s): Mamata Mahato, Shayantan Mukherji, Kristof Van Hecke, Klaus Harms, Abhrajyoti Ghosh, Hari Pada Nayek Six mononuclear organotin(IV) complexes of two dithiocarbamato ligands, [Ph3SnL1] (1), [Bu2Sn(L1)2] (2), [Ph2Sn(L1)Cl] (3), [Ph2Sn(L1)2] (4), [Ph2Sn(L2)2] (5) and [Ph3Sn(L2)] (6) where L 1  = thiomorpholine-4-carbodithiolate and L 2  = 2,6-dimethylmorpholine-4-carbodithiolate have been synthesized in good yields. Both ligands and complexes 1–6 were characterized by elemental analyses, FT-IR spectro...
Source: Journal of Organometallic Chemistry - November 6, 2017 Category: Chemistry Source Type: research

Synthesis, spectroscopic characterization, luminescence and NLO properties of heterometallic M(II)-Ru(II) (M=Ni and Zn) hybrid complexes composed of coordination and organometallic sites
Publication date: 15 December 2017 Source:Journal of Organometallic Chemistry, Volume 853 Author(s): S.S. Chavan, S.B. Pawal, S.R. Lolage, K.M. Garadkar The heterometallic complexes of the type [Ni(L 1-3 )NC5H4-C≡C-C6H3-1,3-{C≡C-trans-RuCl(dppe)2}2] (1a-c) and [Zn(L 1-3 )NC5H4-C≡C-C6H3-1,3-{C≡C-trans-RuCl(dppe)2}2] (2a-c) (Where, L 1  = 2-{(E)-[(2-hydroxyphenyl)imino]methyl}phenol, L 2  = 2-{[(E)-(2-hydroxyphenyl) methylideneamino}-5-methoxyphenol and L 3  = 2-{[(E)-(2-hydroxyphenyl)methylidene]amino}-5-nitrophenol and dppe = 1,2-bis(diphenylphosphinoethane))...
Source: Journal of Organometallic Chemistry - November 6, 2017 Category: Chemistry Source Type: research

Reactivity of 2-benzylpyridyl lithium toward benzonitrile derivatives: Addition versus elimination
Publication date: Available online 4 November 2017 Source:Journal of Organometallic Chemistry Author(s): Xiaomin Hao, Lu Qin, Mali Xu, Xia Chen This work investigated the reactivity of 2-benzylpyridyl lithium (2-Pyr)C(Ph)(R)Li (R = SiMe3, Li1; R = H, Li2) toward benzonitrile derivatives. Based on the different products, the reaction between lithium salts and nitriles might involve in addition, elimination and bimolecular coupling pathways, respectively. Treatment of Li1 with ArCN (Ar = Ph, p-Tolyl, o-Tolyl, p-OMePh) yielded an addition intermediate pyridyl-1-aza-allyl-lithium [{(2-Pyr)C(Ph)C(Ar)N(SiMe3...
Source: Journal of Organometallic Chemistry - November 5, 2017 Category: Chemistry Source Type: research

Incorporation of norbornene moiety onto the arene of diaryl substituted amides through C-H functionalization
Publication date: Available online 3 November 2017 Source:Journal of Organometallic Chemistry Author(s): Hsueh-Min Chou, Jia-Nan Jhou, Fung-E. Hong In the presence of norbornene, Pd(OAc)2 smoothly catalyzed the meta-C-H activation process of N-phenylbenzamide (4) and yielded a norbornene fused product, (1R,4S,4aR,8bS)-N-phenyl-1,2,3,4,4a,8b-hexahydro-1,4-methanobiphenylene-5-carboxamide (5a). The employment of Ag(OAc) is crucial to the success of this reaction. Norbornene related compounds, dicyclopentadiene and norbordiene, were used as the reagents and structurally similar compounds, 5b and 5c were formed although with ...
Source: Journal of Organometallic Chemistry - November 4, 2017 Category: Chemistry Source Type: research

Theoretical investigation on the selectivity in the palladium-catalyzed reaction of oxidative carbonylation-carbocyclization-carbonylation-alkynylation of enallene
Publication date: Available online 3 November 2017 Source:Journal of Organometallic Chemistry Author(s): Yaping Li, Shenhua Miao, Zhangyu Yu, Tao Liu The mechanistic study of palladium-catalyzed reaction of oxidative carbonylation-carbocyclization-carbonylation-alkynylation of enallene was carried out by using density functional theory (DFT). Our calculated results indicate that P1 is the only product and other side products could not be obtained in the experiment. The instability of P2 is caused by the strong ring strain. Without the coordination of CO, P3 and P4 are calculated to be inaccessible. P1 is preferred over P5...
Source: Journal of Organometallic Chemistry - November 4, 2017 Category: Chemistry Source Type: research

Exploiting the reactivity of actinide fluoride bonds for the synthesis and characterization of a new class of monometallic bis(azide) uranium complexes
Publication date: Available online 4 November 2017 Source:Journal of Organometallic Chemistry Author(s): Karla A. Erickson, Alejandro G. Lichtscheidl, Marisa J. Monreal, Andrew T. Nelson, Brian L. Scott, David E. Morris, Jaqueline L. Kiplinger The terminal actinide fluoride bonds in (C5Me5)2ThF2(py) (py = pyridine) and (C5Me5)2UF2(O=PR3) (R = Me, Ph) react with two equivalents of Me3SiN3 in toluene to form the polymeric thorium bis(azide), [(C5Me5)2Th(N3)2]∞, and a new class of monometallic uranium bis(azide) complexes, (C5Me5)2U(N3)2(O=PR3), respectively. Full characterization of the novel compl...
Source: Journal of Organometallic Chemistry - November 4, 2017 Category: Chemistry Source Type: research

Compounds with platinum-metal bonds: A personal account
Publication date: 1 November 2017 Source:Journal of Organometallic Chemistry, Volumes 849–850 Author(s): R.J. Puddephatt A review is given of the chemistry of compounds containing platinum-metal bonds, focussed on the research developed in the author's group. The synthetic methods, structures and bonding, and reactivity are treated, as well as the ability of some compounds to mimic the reactivity of platinum-containing bimetallic catalysts, which are widely used in petroleum reforming. Graphical abstract (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - November 2, 2017 Category: Chemistry Source Type: research

Synthesis, characterization, photophysical properties of new fluorescent boron Schiff bases (BOSCHIBAs) and their application as cytoplasm staining dyes in  vitro
Publication date: 1 December 2017 Source:Journal of Organometallic Chemistry, Volume 852 Author(s): María M. Corona-López, Víctor M. Jiménez Pérez, Rodrigo Chan-Navarro, Marisol Ibarra-Rodríguez, H.V. Rasika Dias, Arturo Chávez-Reyes, Blanca M. Muñoz-Flores In this paper, we report a series of Schiff bases synthesized by the condensation reaction between 2-hydroxy-1-naphthaldehyde with aniline derivatives as well as their further coordination with diphenylborinic acid for giving the corresponding boron Schiff bases (BOSCHIBAs) (E)-N-((2-((di-phenylboryl)oxy)naphthale...
Source: Journal of Organometallic Chemistry - November 2, 2017 Category: Chemistry Source Type: research

Platinum-catalyzed reactions of 2,3-bis(dimethylsilyl)furan with alkynes
Publication date: 15 December 2017 Source:Journal of Organometallic Chemistry, Volume 853 Author(s): Akinobu Naka, Sakino Takase, Akiho Shimada, Hisayoshi Kobayashi, Mitsuo Ishikawa The synthesis and platinum-catalyzed reactions of 2,3-bis(dimethylsilyl)furan (1) have been reported. The reactions of 1 with diphenylacetylene and phenyl(trimethylsilyl)acetylene in the presence of a platinum catalyst gave the corresponding six-membered ring compounds produced from dehydrogenative double silylation of alkynes. The similar reactions of 1 with mono-substituted acetylenes such as phenylacetylene and trimethylsilylacetylene proce...
Source: Journal of Organometallic Chemistry - October 24, 2017 Category: Chemistry Source Type: research

Nano –silica supported palladium catalyst: Synthesis, characterization and application of its activity in Sonogashira cross–coupling reactions
This study deals about preparation of palladium(II) complex of 3,5–bis(2–benzothiazolyl)pyridine supported on nano silica functionalized with trimethoxysilylpropyl chloride, Pd(II)Cl2–BTP@TMSP–nSiO2. The synthesized heterogeneous catalyst was characterized by FT–IR, UV–Vis spectroscopies, field emission scanning electron microscopy, energy dispersive X–ray analysis, transmission electron microscopy and elemental analysis. Furthermore, the Pd(II)Cl2–BTP@TMSP–nSiO2 was found as a highly efficient catalyst in the Sonogashira cross–coupling of aryl halides (iodides, b...
Source: Journal of Organometallic Chemistry - October 23, 2017 Category: Chemistry Source Type: research