Copper(II)-faciliated synthesis of substituted thioethers and 5-substituted 1H-tetrazoles: Experimental and theoretical studies
Publication date: Available online 15 June 2019Source: Journal of Organometallic ChemistryAuthor(s): Samaresh Layek, Bhumika Agrahari, Shuvankar Dey, Rakesh Ganguly, Devendra D. PathakAbstractBenzoylhydrazine based Schiff base-ligated two new copper(II) complexes, [Cu(L1)2] (1) and [Cu(L2)2] (2) were synthesized by the reaction of Cu(CH3COO)2·H2O with respective Schiff base ligand 1-[(4-nitrophenyl)ethylidene] benzohydrazide (HL1) or 1-[(4-methoxyphenyl)ethylidene] benzohydrazide (HL2). Both complexes were isolated as greenish solid and fully characterized by elemental analysis, FT-IR, EPR, thermo-gravimetric (TG) a...
Source: Journal of Organometallic Chemistry - June 15, 2019 Category: Chemistry Source Type: research

Metalated azolo[1,2,4]triazines. II. Generation, C(4)-substituent dependent stability and electrophile trapping of 7-lithiopyrazolo[5,1-c][1,2,4]triazines
Publication date: Available online 15 June 2019Source: Journal of Organometallic ChemistryAuthor(s): Sergey M. Ivanov, Artem O. Dmitrienko, Michael G. Medvedev, Lyudmila M. MironovichAbstract7-Lithio-3-tert-butylpyrazolo[5,1-c][1,2,4]triazines have been generated for the first time using one-pot nucleophilic addition and metal-halogen exchange reactions in 7-bromopyrazolo[5,1-c][1,2,4]triazines. It was found that the stability of 7-lithio species depends highly on the substitution pattern at the C(4) ring position. The rate of the pyrazole ring opening reaction roughly followed the order of the electronegativity of substit...
Source: Journal of Organometallic Chemistry - June 15, 2019 Category: Chemistry Source Type: research

Reactivity studies on a trihydride niobocene complex towards α,β-Unsaturated carboxylic acids
Publication date: Available online 15 June 2019Source: Journal of Organometallic ChemistryAuthor(s): Antonio Antiñolo, Santiago García-Yuste, Isabel López-Solera, Antonio Otero, María Teresa Tercero-Morales, Fernando Carrillo-HermosillaAbstractThe reactions of the trihydride niobocene complex [NbCp’2H3] (Cp’ = η5-C5H4SiMe3) (1) with different α,β-unsaturated carboxylic acids have been studied. The reactions with fumaric and maleic acids (A and B) gave a new dinuclear carboxylato-containing niobocene derivative [(NbCp’2)2(μ-κ2O,O-OOC-CH2-CH2-COO-&kapp...
Source: Journal of Organometallic Chemistry - June 15, 2019 Category: Chemistry Source Type: research

Synthesis of 1,4,5-trisubstituted triazoles by [3+2] cycloaddition of a ruthenium azido complex with ynoate esters
Publication date: Available online 14 June 2019Source: Journal of Organometallic ChemistryAuthor(s): Chao-Wan Chang, Gene-Hsiang LeeAbstractThe [3 + 2] cycloaddition reactions of a series of ynoate esters with a ruthenium azido complex [Ru]−N3 (1, [Ru] = (η5-C5H5)(dppe)Ru, dppe = Ph2PCH2CH2PPh2) were investigated. The reaction products, metal-bound heterocyclic complexes such as the triazolato complexes [Ru]N3C2(CO2Et)2 (2), [Ru]N3C2(CO2Et)(CF3) (3), [Ru]N3C2(CO2Me)(Ph) (4) and [Ru]N3C2(CO2Et)(CH3) (5) were produced from diethyl acetylene dicarboxylate, ethyl 4,4,4-trifluoro-2-butynoate, methyl phen...
Source: Journal of Organometallic Chemistry - June 15, 2019 Category: Chemistry Source Type: research

Editorial Board
Publication date: 1 September 2019Source: Journal of Organometallic Chemistry, Volume 895Author(s): (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - June 15, 2019 Category: Chemistry Source Type: research

Graphical abstract TOC continued
Publication date: 1 September 2019Source: Journal of Organometallic Chemistry, Volume 895Author(s): (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - June 15, 2019 Category: Chemistry Source Type: research

Graphical abstract TOC
Publication date: 1 September 2019Source: Journal of Organometallic Chemistry, Volume 895Author(s): (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - June 15, 2019 Category: Chemistry Source Type: research

Pd(II) supported dioxime functionalized Fe3O4 nanoparticles as efficient, eco-friendly and reusable catalysts for the Suzuki-Miyaura cross-coupling reaction in water
Publication date: Available online 12 June 2019Source: Journal of Organometallic ChemistryAuthor(s): Ahmet Kilic, Esra Gezer, Feyyaz Durap, Murat Aydemir, Akın BaysalAbstractFive novel dioxime ligands (L(1-5)H2) were synthesized in various yields under suitable conditions. Novel nano-Fe3O4-supported compounds (Fe3O4/L(1-5)) based on dioxime ligands were also prepared. Subsequently, hybrid materials Fe3O4/L(1-5)/Pd(II) were fabricated by the reaction of Fe3O4/L(1-5) with Pd(AcO)2 in acetonitrile. All synthesized nanoparticles were characterized by FT-IR spectroscopy, scanning electron microscopy (SEM), energy dispersive X-...
Source: Journal of Organometallic Chemistry - June 12, 2019 Category: Chemistry Source Type: research

Revisiting the synthesis of trans-[Pt(dmso)2ClMe] and cis-[Pt(dmso)2Me2]: Experimental and DFT studies
Publication date: Available online 7 June 2019Source: Journal of Organometallic ChemistryAuthor(s): Edwin A. Baquero, Ana Rodríguez-Zúñiga, Juan C. Flores, Manuel Temprado, Ernesto de JesúsAbstractThe preparation of trans-[Pt(dmso)2ClMe] (2) and cis-[Pt(dmso)2Me2] (3) from cis-[Pt(dmso)2Cl2] (1) and SnMe4 has been reexamined (dmso = dimethyl sulfoxide). The information obtained from experimental and DFT studies has permitted the improvement of previously reported methods for the synthesis of both complexes in terms of reaction times, reaction yields, and atom economy. These studies show that...
Source: Journal of Organometallic Chemistry - June 8, 2019 Category: Chemistry Source Type: research

Molybdenum and rhenium carbonyl complexes containing thiolato ligands
Publication date: Available online 7 June 2019Source: Journal of Organometallic ChemistryAuthor(s): Purificación Cañadas, Sina Ziegler, Sergio Fombona, Eva Hevia, Daniel Miguel, Julio Pérez, Lucía RieraAbstractThe reaction of fac-[M(OTf)(CO)3(N–N)](M = Mn, Re; N–N = 2,2′-bipyridine, 1,10-phenanthroline) complexes with in situ generated LiSEt afforded immediately, in THF at low temperature, the corresponding mononuclear terminal thiolato complexes fac-[M(SEt)(CO)3(N–N)](1-2a,b). Using an analogous synthetic strategy, tungsten and molybdenum (II) alkyl- and arylthio...
Source: Journal of Organometallic Chemistry - June 7, 2019 Category: Chemistry Source Type: research

Evaluating stereoelectronic properties of bulky dialkylterphenyl phosphine ligands
Publication date: Available online 7 June 2019Source: Journal of Organometallic ChemistryAuthor(s): Mario Marín, Juan J. Moreno, María M. Alcaide, Eleuterio Álvarez, Joaquín López-Serrano, Jesús Campos, M. Carmen Nicasio, Ernesto CarmonaAbstractThe stereoelectronic properties of a series of sterically hindered phosphines containing a terphenyl substituent, PR2Ar’ (R = alkyl; Ar’ = C6H3-2,6-Ar2), have been evaluated by various methods. Their σ-donating capacity has been assessed on the basis of the carbon monoxide stretching frequencies in benchmark iridium...
Source: Journal of Organometallic Chemistry - June 7, 2019 Category: Chemistry Source Type: research

Cyclopentadienyl yttrium complexes with the [{Ti(η5-C5Me5)(μ-NH)}3(μ3-N)] metalloligand
Publication date: Available online 7 June 2019Source: Journal of Organometallic ChemistryAuthor(s): Jorge Caballo, Miguel Mena, Adrián Pérez-Redondo, Carlos YélamosAbstractThe reactivity of the yttrium trichloride complex [Cl3Y{(μ3-NH)3Ti3(η5-C5Me5)3(μ3-N)}] (2) with a variety of main-group metal cyclopentadienyl reagents [M(C5H3R1R2)] (M = Li, Na, K, Tl) or [Mg(C5H5)2] has been investigated. Treatment of 2 with one equivalent of [Na(C5H5)] or [K(C5H4SiMe3)] gives the monocyclopentadienyl derivatives [(η5-C5H4R)Cl2Y{(μ3-NH)3Ti3(η5-C5Me5)3(μ3-N)}] (R = H (3), SiMe3 (4)). ...
Source: Journal of Organometallic Chemistry - June 7, 2019 Category: Chemistry Source Type: research

Synthesis, structure and electrochemistry properties of [Ru2(CO)4]2+ complexes with di(pyridyl)pyrrolide ligands
Publication date: Available online 7 June 2019Source: Journal of Organometallic ChemistryAuthor(s): Ting-Ting Zhang, Hui-Qiong Xiao, Shao-Qian Liu, Wa-Hung Leung, Yu Wang, Wei-Hua Zhu, Xu Liang, Xiao-Yi YiAbstractTreatment of [Ru3(CO)12] with 2,5-di(2-pyridyl)pyrrole (HL1) and 2,5-di(2-(5-bromopyridyl)pyrrole (HL2) in refluxing toluene afforded the dinuclear Ru(I) carbonyl complexes [Ru2(CO)4(L)] (L = L1 (1), L2 (3), respectively). Alternatively, 1 along with a minor mononuclear product [Ru(CO)2(L1)2] (2) was synthesized from reaction of [Ru(CO)2Cl2]n with HL1 in methanol in the presence of triethylamine. Complexes 1&n...
Source: Journal of Organometallic Chemistry - June 7, 2019 Category: Chemistry Source Type: research

Click-chemistry approach to synthesis of functionalized isatin-ferrocenes and their biological evaluation against the human pathogen Trichomonas vaginalis
Publication date: 15 September 2019Source: Journal of Organometallic Chemistry, Volume 896Author(s): Amandeep Singh, David Zhang, Christina C. Tam, Luisa W. Cheng, Kirkwood M. Land, Vipan KumarAbstractCopper-promoted azide-alkyne cycloadditions were attempted to synthesize a series of variedly functionalized 1H-1,2,3-triazole-linked isatin-ferrocene, ferrocenylmethoxy-isatin and isatin-ferrocenyl-chalcone conjugates. The synthesized scaffolds were assayed for their inhibitory activity against T. vaginalis as well as several common normal human flora bacteria. The observed inhibitory activities against T. vaginali...
Source: Journal of Organometallic Chemistry - June 7, 2019 Category: Chemistry Source Type: research

Editorial Board
Publication date: 30 August 2019Source: Journal of Organometallic Chemistry, Volume 894Author(s): (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - June 6, 2019 Category: Chemistry Source Type: research

Graphical abstract TOC continued
Publication date: 30 August 2019Source: Journal of Organometallic Chemistry, Volume 894Author(s): (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - June 6, 2019 Category: Chemistry Source Type: research

Graphical abstract TOC
Publication date: 30 August 2019Source: Journal of Organometallic Chemistry, Volume 894Author(s): (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - June 6, 2019 Category: Chemistry Source Type: research

Unusual resistance of cobalt bis dicarbollide phosphate and phosphorothioate bridged esters towards alkaline hydrolysis: The “metallacarborane effect”
Publication date: Available online 5 June 2019Source: Journal of Organometallic ChemistryAuthor(s): Carla Sardo, Sławomir Janczak, Zbigniew J. LeśnikowskiAbstractThe extraordinary stability of bridged O,O-[cobalt bis(dicarbollide)ion] O-(4-nitrophenyl)phosphorothioate [2]- and phosphate [3]- esters under alkali conditions was discovered. The hydrolysis of metallacarborane esters [2]- and [3]- was studied, and the kinetic and thermodynamic parameters were measured and compared with those of their organic counterparts, parathion and paraoxon. The extreme differences between the hydrolytic properties of alkyl- and metallaca...
Source: Journal of Organometallic Chemistry - June 5, 2019 Category: Chemistry Source Type: research

Synthesis and characterization of a new poly α-amino acid Co(II)-complex supported on magnetite graphene oxide as an efficient heterogeneous magnetically recyclable catalyst for efficient free-coreductant gram-scale epoxidation of olefins with molecular oxygen
Publication date: Available online 3 June 2019Source: Journal of Organometallic ChemistryAuthor(s): Milad Kazemnejadi, Boshra Mahmoudi, Zeinab Sharafi, Mohammad Ali Nasseri, Ali Allahresani, Mohsen EsmaeilpourAbstractA novel magnetic nanocomposite was prepared by immobilization of a cobalt complex of a synthetic poly α-amino acid on Fe3O4-doped graphene oxide (GO/Fe3O4@PAA Co(II)) and was demonstrated to be a highly efficient catalyst for the epoxidation of olefins in mild conditions. PAA was synthesized through a multi-step synthesis, first by a poly condensation reaction of salicylaldehyde followed by the Strecker ...
Source: Journal of Organometallic Chemistry - June 5, 2019 Category: Chemistry Source Type: research

Water-soluble carbonyl complexes of 99Tc(I) and Re(I) with adamantane-cage aminophosphines PTA and CAP
Publication date: Available online 2 June 2019Source: Journal of Organometallic ChemistryAuthor(s): Alexander E. Miroslavov, Sergey N. Britvin, Henrik Braband, Roger Alberto, Ekaterina S. Stepanova, Anna P. Shevyakova, Georgy V. Sidorenko, Alexander A. LumpovAbstractPentacarbonyl complexes of 99Tc and Re [M(CAP)(CO)5]X and [M(PTA)(CO)5]X (M = 99Tc or Re and X = ClO4− or OTf–) with aminophosphine ligands 1,4,7-triaza-9-phosphatricyclo[5.3.214,9]tridecane (CAP) and 1,3,5-triaza-7-phosphaadamantane (PTA) were prepared for the first time by the reaction of [MX(CO)5] (M = 99Tc or Re, X = ClO4− ...
Source: Journal of Organometallic Chemistry - June 3, 2019 Category: Chemistry Source Type: research

New C-scorpionate nickel(II) catalyst for Heck C–C coupling under unconventional conditions
Publication date: Available online 1 June 2019Source: Journal of Organometallic ChemistryAuthor(s): Inês A.S. Matias, Ana P.C. Ribeiro, Luísa M.D.R.S. MartinsAbstractThe new C-scorpionate Ni(II) complex [NiCl{κ3-HC(pz)3}]Cl (pz = pyrazol-1-yl) is the first nickel homoscorpionate tris(pyrazol-1-yl)methane type complex to be applied as catalyst for the Heck–Mizoroki C–C cross coupling. The microwave-assisted reaction of butyl acrylate and 4-halogeno-anisole was efficiently catalysed by the above Ni(II) complex, in ionic liquid medium, yielding the C–C coupling product in good yields. ...
Source: Journal of Organometallic Chemistry - June 2, 2019 Category: Chemistry Source Type: research

Synthesis of β-hydroxyamides through ruthenium-catalyzed hydration/transfer hydrogenation of β-ketonitriles in water: Scope and limitations
Publication date: Available online 30 May 2019Source: Journal of Organometallic ChemistryAuthor(s): Rebeca González-Fernández, Pascale Crochet, Victorio CadiernoAbstractA cascade process for the straightforward one-pot conversion of β-ketonitriles into β-hydroxyamides is presented. The process, that proceeds in water employing the arene-ruthenium(II) complex [RuCl2(η6-p-cymene){P(4-C6H4F)2Cl}] as catalyst in combination with sodium formate, involves the initial hydration of the β-ketonitrile substrates to generate the corresponding β-ketoamide intermediates, which subsequently undergo ...
Source: Journal of Organometallic Chemistry - May 31, 2019 Category: Chemistry Source Type: research

Click-chemistry approach to functionalized isatin-ferrocenes and their biological evaluation against the human pathogen Trichomonas vaginalis
Publication date: Available online 30 May 2019Source: Journal of Organometallic ChemistryAuthor(s): Amandeep Singh, David Zhang, Christina C. Tam, Luisa W. Cheng, Kirkwood M. Land, Vipan KumarAbstractCopper-promoted azide-alkyne cycloadditions were attempted to synthesize a series of variedly functionalized 1H-1,2,3-triazole-linked isatin-ferrocene, ferrocenylmethoxy-isatin and isatin-ferrocenyl-chalcone conjugates. The synthesized scaffolds were assayed for their inhibitory activity against T. vaginalis as well as several common normal human flora bacteria. The observed inhibitory activities against T. vaginalis and undet...
Source: Journal of Organometallic Chemistry - May 31, 2019 Category: Chemistry Source Type: research

Novel copper(II) and palladium(II) complexes with 4-aroyl-5-pyrazolone ligands: Synthesis and characterization
Publication date: Available online 30 May 2019Source: Journal of Organometallic ChemistryAuthor(s): Emine Bagdatli, Fatih Yildirim, Gorkem Ulucay, Ulku SayinAbstractNovel bidentate 4-aroyl-5-pyrazolone ligands were synthesized and reacted with copper(II) and palladium(II) salts in 1:2 (metal:ligand) equimolar ratio leading to the formation of eight new coordination compounds. All synthesized compounds were characterized by FTIR, UV–Vis, ESI-Mass, 1H NMR, 13C-APT and also, in the case of the paramagnetic palladium(II) complexes, by ESR spectral studies. Additionally, elemental and thermogravimetric analyses (TG/DTG) w...
Source: Journal of Organometallic Chemistry - May 31, 2019 Category: Chemistry Source Type: research

Cyclometallated ruthenium complexes with P-stereogenic monophosphines containing a polycyclic aromatic substituent
Publication date: Available online 31 May 2019Source: Journal of Organometallic ChemistryAuthor(s): Arnald Grabulosa, Jaume Granell, Mercè Font-BardiaAbstractReactions of optically pure P-stereogenic ortho-tolyl substituted phosphines with [RuCl2(p-cymene)]2 afforded the corresponding κP-coordinated ruthenium(II) dichlorides (C1′, C2’) even in the presence of sodium acetate. In contrast, the ruthenium cyclometallated (κ2-C,P) complexes (C3–C9) were obtained with phosphines containing a polycyclic aromatic substituent (L3-L9), namely 1-naphthyl, 9-phenanthryl or 1-pyrenyl. Some diastereo...
Source: Journal of Organometallic Chemistry - May 31, 2019 Category: Chemistry Source Type: research

Drastic effect of the substituent on the anthraquinone diimine moiety on the properties of the push-pull trans-bisphosphinebisphenylacetynylplatinum(II)-containing polymers
Publication date: Available online 31 May 2019Source: Journal of Organometallic ChemistryAuthor(s): Frank Juvenal, Hu Lei, Paul-Ludovic Karsenti, Pierre D. HarveyAbstractA new emissive polymer ([Pt]-(AQI(OR)2))n, P2, where AQI is anthraquinone diimine, [Pt] is trans-bis(ethynylbenzene)bis(tributylphosphine)platinum(II) and R is n-butyl, has been prepared in order to compare with the related polymer ([Pt]-(AQI(NO2)2))n P1 (Macromolecular Chemistry and Physics (2018), 219(22), 1800354). In addition to the difference in substituent effect (electron donor, O-n-Bu; electron acceptor, NO2), the first notable difference is the po...
Source: Journal of Organometallic Chemistry - May 31, 2019 Category: Chemistry Source Type: research

New ethylferrocenyl based pyranylidene bridge dyads: Synthesis, characterization and investigation of electrochemical and optical properties
Publication date: Available online 30 May 2019Source: Journal of Organometallic ChemistryAuthor(s): Reza Teimuri-Mofrad, Keshvar Rahimpour, Alireza AghaiepourAbstractIn this research, we designed and synthesized six new pyranylidene backbone end-capped with donor and acceptor groups. Ethylferrocene was presented as new donor to evaluate the effect of alkyl chain substituted in ferrocene unit on linear optical and electrochemical properties of push-pull systems and compare it with their unsubstituted ferrocene analogues. Proposed structures were confirmed via FT-IR, 1H NMR, 13C NMR, elemental analyses and mass spectra. Opti...
Source: Journal of Organometallic Chemistry - May 30, 2019 Category: Chemistry Source Type: research

Synthesis of ferrocene and azobenzene-based copolymers P(FHEMA-co-MAZOHE)s and their redox and photo-responsive properties
Publication date: Available online 28 May 2019Source: Journal of Organometallic ChemistryAuthor(s): Amin Khan, Haojie Yu, Li Wang, Pavel A. Zhizhko, Dmitry N. Zarubin, Dmitry A. Lemenovskiy, Fazal Haq, Muhammad Usman, Ahsan Nazir, Kaleem-ur-Rehman NaveedAbstractHerein, poly(2-(methacryloyloxy) ethyl ferrocene carboxylate-co-(methacrylohydroxyhexane azobenzene)s) (P(FHEMA-co-MAZOHE)s) were prepared by random copolymerization and were characterized by proton nuclear magnetic resonance (1H NMR) and gel permeation chromatography (GPC) to confirm the structures and molecular weights respectively. Thermal variations were analyze...
Source: Journal of Organometallic Chemistry - May 30, 2019 Category: Chemistry Source Type: research

DFT perspective on the selectivity and mechanism of ligand-free Heck reaction involving allylic esters and arenediazonium salts
Publication date: Available online 28 May 2019Source: Journal of Organometallic ChemistryAuthor(s): Vitor H. Menezes da Silva, Nelson H. Morgon, Carlos R.D. Correia, Ataualpa A.C. BragaAbstractA density functional theory (DFT) study has been carried out with respect to the cationic and neutral mechanism of ligand-free Heck-Matsuda cross-coupling reaction involving allylic esters and arenediazonium salts. Full Heck-Matsuda (HM) catalytic cycles were explored in the presence of different possible combinations of ligands based on previous mass-spectrometry studies. DFT calculations were performed to examine the olefinic subst...
Source: Journal of Organometallic Chemistry - May 29, 2019 Category: Chemistry Source Type: research

Palladium nanoparticles supported on cysteine-functionalized MNPs as robust recyclable catalysts for fast O- and N-arylation reactions in green media
Publication date: Available online 28 May 2019Source: Journal of Organometallic ChemistryAuthor(s): Abdol R. Hajipour, Zahra Khorsandi, S. Fatemeh Mohammadi MetkaziniAbstractA magnetically robust recyclable nanocatalyst was fabricated by immobilizing of Pd onto the surface of cysteine-functionalized magnetic nanoparticles (MNPs@Cys-Pd). This nanocatalyst was characterized using various techniques such as FT-IR, XRD, TEM, SEM, EDX, VSM, and ICP. The application of catalyst (MNPs@Cys-Pd) was investigated for O-arylation and N-arylation reactions. This phosphine-free complex was found as highly efficient heterogeneous catalys...
Source: Journal of Organometallic Chemistry - May 29, 2019 Category: Chemistry Source Type: research

(E)-4-(4-(3-(2-fluoro-5-(trifluoromethyl)phenyl)acryloyl)phenoxy)Substituted Co(II) and Cu(II) phthalocyanines and their catalytic activities on the oxidation of phenols
Publication date: Available online 24 May 2019Source: Journal of Organometallic ChemistryAuthor(s): Ece Tuğba Saka, Nuran KahrimanAbstractPhenols from various man-made activities pose threats to public health and aquatic ecosystems. A number of technologies (e.g., adsorption, oxidation, and biological methods) have been proposed and tested to remove phenolic compounds from different sources. Among these technologies, oxidation process is considered one of the most efficient tools for abating phenolic compounds because of low cost, easy scalability, and ecofriendly production. In this work, we aim to synthesize and charact...
Source: Journal of Organometallic Chemistry - May 25, 2019 Category: Chemistry Source Type: research

Luminescent [fac-Re(CO)3-N∩O-phenylimidazole] complexes with parallel arrangement of twisted ligand motifs
Publication date: 1 September 2019Source: Journal of Organometallic Chemistry, Volume 895Author(s): Isha Mishra, Malaichamy SathiyendiranAbstractLuminescent complexes [fac-Re(CO)3(Y∩X)(ph-imz)] where (Y∩XH) = H2-PBI = 2-(2′-hydroxyphenyl)-1H-benzimidazole, H-PB0 = 2-(2′-hydroxyphenyl)benzoxazole for 2, and H-PBT = 2-(2′-hydroxyphenyl)benzothiazole for 3 and ph-imz = 2-phenylimidazole) were synthesized using Re2(CO)10, H2-PBI/H-PBO/H-PBT and ph-imz via one-pot approach. All the three complexes were characterized using FT-IR, 1H NMR, and single crystal X-ray diffraction analysis. The...
Source: Journal of Organometallic Chemistry - May 25, 2019 Category: Chemistry Source Type: research

Phase transitions and crystal structures of organometallic ionic plastic crystals comprised of ferrocenium cations and CH2BrBF3 anions
In this study, we synthesized the salts [Fe(C5Me5)2][CH2BrBF3] (1), [Fe(C5Me4H)2][CH2BrBF3] (2), and [Fe(C5H5)2][CH2BrBF3] (3) containing the CH2BrBF3 anion in order to investigate the effect of anion symmetry. These salts underwent phase transitions to a plastic phase at 360.8, 272.9, and 328.8 K; only 2 exhibited a plastic phase below 300 K. Moreover, the crystal structures of the plastic phases and low temperature phases were investigated. The results were discussed and compared with the corresponding CF3BF3 salts.Graphical abstract (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - May 24, 2019 Category: Chemistry Source Type: research

Photophysical properties and optical power limiting ability of Pt(II) polyynes bearing fluorene-type ligands with ethynyl units at different positions
Publication date: Available online 22 May 2019Source: Journal of Organometallic ChemistryAuthor(s): Zhuanzhuan Tian, Xiaolong Yang, Boao Liu, Daokun Zhong, Guijiang ZhouAbstractTwo series of Pt(II) polyynes bearing fluorene-type ligands with ethynyl units at different positions have been synthesized. In the absorption spectra, the Pt(II) polyynes bearing fluorene-type ligands with ethynyl units at 3,6-position have blue-shift with respect to the corresponding analogs bearing fluorene-type ligands with ethynyl units at 2,7-position, showing better transparency in the visible light region. Moreover, the Pt(II) polyynes beari...
Source: Journal of Organometallic Chemistry - May 24, 2019 Category: Chemistry Source Type: research

Fe3-xTixO4-supported sulfamic acid nanoparticles: New magnetic nanocatalyst for the synthesis of hexahydroquinolines
Publication date: Available online 22 May 2019Source: Journal of Organometallic ChemistryAuthor(s): Davood Azarifar, Younes Abbasi, Mehdi Jaymand, Mohammad Ali Zolfigol, Masoumeh Ghaemi, Omolbanin BadalkhaniAbstractA novel acidic nanocatalytic system, sulfamic acid-functionalized Fe3-xTixO4 magnetic nanoparticles (MNPs), was synthesized through one-pot reaction of Fe3-xTixO4 MNPs with 3-chloropropyltrimethoxysilane and imidazolidine-2,4-dione followed by functionalization with chlorosulfonic acid. The structure of this newly synthesized nanocatalyst was established by several analysis methods including, Fourier-transform i...
Source: Journal of Organometallic Chemistry - May 24, 2019 Category: Chemistry Source Type: research

Cu-catalyzed arylation of 1-acyl-1H-1,2,3-Benzotriazoles via C–N activation
Publication date: Available online 23 May 2019Source: Journal of Organometallic ChemistryAuthor(s): Wenying Zhang, Yangyang Wang, Xiangru Jia, Zhengyin Du, Ying FuAbstractAn efficient copper-catalyzed arylation reaction of 1-acyl-1H-1,2,3-benzotriazoles with diaryliodonium salts via C–N activation is explored. The reaction is conducted regioselectively to form 1-aryl-1H-1,2,3-benzotriazoles in MeCN at 80 °C in the presence of cesium carbonate. 29 examples are given with the product yield of up to 84%. The probable reaction mechanism is proposed.Graphical abstract (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - May 24, 2019 Category: Chemistry Source Type: research

Half-sandwich ruthenium(II) complexes containing O, N bidentate azo ligands: Synthesis, structure and their catalytic activity towards one-pot conversion of aldehydes to primary amides and transfer hydrogenation of ketones
Publication date: Available online 23 May 2019Source: Journal of Organometallic ChemistryAuthor(s): Raja Nandhini, Venkatachalam GalmariAbstractThe ruthenium(II) complexes of the general formula [Ru(η6‒p‒cymene)(Cl)(L1‒5)] (L = O, N-donors of biphenylazo derivatives), formed by reacting 2‒(biphenylazo)phenol (HL1 ‒ HL4) and 1‒(biphenylazo)naphthol ligands (HL5) with [{η6‒p‒cymene)RuCl}2(μ‒Cl)2] have been synthesized. The compositions of the complexes have been established by IR, UV–Vis, 1H NMR spectral methods and X-ray crystallography. The synthesized complex could act as an efficien...
Source: Journal of Organometallic Chemistry - May 24, 2019 Category: Chemistry Source Type: research

Mono and bis carbene neodymium(III) spirocyclic complexes with a cumulene carbon metal structure
In this study, we performed the first step reaction of [Li2C(Ph2P = NSiMe3)2] (1) with NdCl3 in 1:1 M ratio in situ, with subsequent addition of second molar ratio of 1 to the reaction solution to generate bis carbene neodymium organometallic compound of [Nd{C(Ph2P = NSiMe3)2}2][Li(THF)n] (2). The anion of this isolated compound 2 formed a rare linear carbene metal cumulene structure (C=Nd = C) demonstrated by crystal structure determination. In order to synthesize a mono carbene neodymium compound with bis(diphenyliminophosphorane)methandiide (1) to compare its bonding feature to the reactions of [Li2C(Ph2P...
Source: Journal of Organometallic Chemistry - May 21, 2019 Category: Chemistry Source Type: research

Halogen bridged mixed-metal complexes based on a trimethylplatinum fragment
Publication date: Available online 20 May 2019Source: Journal of Organometallic ChemistryAuthor(s): I.V. Skabitsky, E.I. Romadina, S.G. Sakharov, A.A. PasynskyAbstractBy the reaction of tetramer [Me3Pt(μ3-Cl)]4 with RhCl3 and [PPN]Cl (PPN = Ph3P = N=PPh3+) in a acetone-DCM mixture under the influence of ultrasound a heterometallic ionic complex [PPN][Me3Pt(μ-Cl)3Rh(μ-Cl)3PtMe3] (I) have been prepared. Tetranuclear complex [PPN]2 [(Me3Pt)2Ru2(μ-O)(μ-Cl)6Cl4]2- (II) have been obtained in a small yield starting from RuCl3 in similar conditions. Complex II has also been prepared purposefully in higher yield ...
Source: Journal of Organometallic Chemistry - May 21, 2019 Category: Chemistry Source Type: research

Luminescent [fac-Re(CO)3–N∩O-phenylimidazole] complexes with parallel arrangement of twisted ligand motifs
Publication date: Available online 16 May 2019Source: Journal of Organometallic ChemistryAuthor(s): Isha Mishra, Malaichamy SathiyendiranAbstractLuminescent complexes [fac-Re(CO)3(Y∩X) (ph-imz)] where (Y∩XH) = H2-PBI = 2-(2′-hydroxyphenylbenzimidazole) for 1, H-PBO = 2-(2′-hydroxyphenylbenzoxazole) for 2, and H-PBT = 2-(2′-hydroxyphenylbenzothiazole) for 3 and ph-imz = 2-phenylimidazole) were synthesized using Re2(CO)10, H2-PBI/H-PBO/H-PBT and ph-imz via one-pot approach. All the three complexes were characterized using FT-IR, 1H NMR, and single crystal X-ray diffraction analys...
Source: Journal of Organometallic Chemistry - May 18, 2019 Category: Chemistry Source Type: research

Appraisal of Ruthenium(II) complexes of (4-phenoxyphenylazo) ligands for the synthesis of primary amides by dint of hydroxylamine hydrochloride and aldehydes
Publication date: Available online 15 May 2019Source: Journal of Organometallic ChemistryAuthor(s): Govindasamy Vinoth, Sekar Indira, Madheswaran Bharathi, Muniyan Sounthararajan, Dharmalingam Sakthi, Kuppannan Shanmuga BharathiAbstractA new family of O, N donor-functionalized (4-phenoxyphenylazo)-2-naphthol/4-substituted phenol-based ligands (HL1-HL4) has been synthesized. The prepared ligands were successfully utilized for the access of a series of ruthenium(II) carbonyl complexes of the type [Ru(L)Cl(CO)(EPh3)3] (E = phosphine/arsine), (L = 1-(4-phenoxyphenylazo)-2-naphthol (HL1), 2-(4-phenoxyphenylazo)-4-chloro...
Source: Journal of Organometallic Chemistry - May 16, 2019 Category: Chemistry Source Type: research

Hydridoaluminates and hydridoborates of lithium stabilized by a Cyclen-derived NNNN-Type macrocyclic ligand
Publication date: Available online 13 May 2019Source: Journal of Organometallic ChemistryAuthor(s): Lara E. Lemmerz, Debabrata Mukherjee, Thomas P. Spaniol, Jun OkudaAbstractLithium amide [(Me3TACD)Li]2 derived from the NNNN macrocycle (Me3TACD)H ((Me3TACD)H = 1,4,7-trimethyl-1,4,7,10-tetraazacyclododecane) reacted with DIBAL(H) to give the lithium hydridoaluminate [(Me3TACD·AlHiBu2)Li(THF)] (1-THF). With HBPin, the lithium hydridoborate [(Me3TACD·HBPin)Li] (2) was obtained. Both compounds have been characterized by multinuclear NMR spectroscopy and single crystal X-ray diffraction. The monomeric structur...
Source: Journal of Organometallic Chemistry - May 13, 2019 Category: Chemistry Source Type: research

Crystal structure, cytotoxicity and biological activity of hydrogen bonded networks based on dimethyltin (IV) and bipodal ligands
Publication date: Available online 13 May 2019Source: Journal of Organometallic ChemistryAuthor(s): Safaa Eldin H. Etaiw, Dina M. Abd El-Aziz, Elham A. AliAbstractThe supramolecular complexes (SC) of the type [Me2SnCl2L], L = 2,2′-bipyridine (2,2′-bpy), SC 1, 4,4′-bipyridine (4,4′-bpy), SC 2, and (1,10-phenanthroline), SC 3, have been synthesized and structurally characterized by elemental analysis, FT-IR, UV–Vis, 1H and 13C NMR spectra and X-ray single crystal. The X-ray data of SC 1 and SC 2 exhibited 1:1 stoichiometry for the dimethyltin dichloride: bipodal ligand. The structure of SC 1...
Source: Journal of Organometallic Chemistry - May 13, 2019 Category: Chemistry Source Type: research

Insertion reactions of isocyanides into the Metal-C(sp3) bonds of ylide complexes
Publication date: Available online 11 May 2019Source: Journal of Organometallic ChemistryAuthor(s): María-Teresa Chicote, Isabel Saura-Llamas, María-Francisca García-Yuste, Delia Bautista, José VicenteAbstractThe synthesis of the previously reported complexes [Pd{(C,C–CHCO2R)2PPh2}(μ-Cl)]2 (R = Me (1), Et (2)) has been considerably improved by reacting the phosphonium salts [Ph2P(CH2CO2R)2]Cl with Pd(OAc)2. Complexes 1 and 2 react with isocyanides R'NC (R’ = C6H4Me2-2,6 (Xy), C6H4I-2 and tBu) to give complexes of the type [Pd{C,C-{C(CO2R) = C(NHR′)}(CHCO2R)}-PPh2...
Source: Journal of Organometallic Chemistry - May 13, 2019 Category: Chemistry Source Type: research

First use of an organobismuth reagent in C(sp3)–S bond formation: Access to aryl cyclopropyl sulfides via copper-catalyzed S–Cyclopropylation of thiophenols using tricyclopropylbismuth
Publication date: 15 August 2019Source: Journal of Organometallic Chemistry, Volume 893Author(s): Emeline Benoit, Bianca Bueno, Catherine Choinière, Alexandre GagnonAbstractThe direct S-cyclopropylation of thiophenols using tricyclopropylbismuth is reported. The reaction is catalyzed by copper(II) acetate and operates under mild conditions to afford the corresponding aryl cyclopropyl sulfides in moderate to good yields. This reaction represents the first use of an organobismuth reagent in C(sp3)–S bond formation.Graphical abstract (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - May 13, 2019 Category: Chemistry Source Type: research

Axial ligand mediated switchable rotary motions in a ferrocene-bridged diiron(III) porphyrin dimer
Publication date: Available online 8 May 2019Source: Journal of Organometallic ChemistryAuthor(s): Anjani Kumar Pandey, Sarnali Sanfui, Firoz Shah Tuglak Khan, Sankar Prasad RathAbstractIn the present work, we have utilized ferrocene-bridged diiron(III) porphyrin dimer and investigate the rotary motions mediated by axial ligands exploiting conformational flexibility of the ferrocene linker. Diiron(III) porphyrin dimer can switch easily between the syn and anti rotamers reversibly based on the axial coordination and thereby forming complexes with different structure and properties for the development of synthetic molecular ...
Source: Journal of Organometallic Chemistry - May 10, 2019 Category: Chemistry Source Type: research

α-deprotonation of a β-shielded acrylamide creates a distorted lithium 1-aminoallen-1-olate
Publication date: Available online 6 May 2019Source: Journal of Organometallic ChemistryAuthor(s): Rudolf Knorr, Barbara Schmidt, Therese von RomanAbstractThe β-shielded acrylamide N,N-diisopropyl-α-(1,1,3,3-tetramethylindan-2-ylidene)acetamide was prepared through ketone addition of an α-lithiated acetamide, followed by H2O elimination. Its α-deprotonation by n-butyllithium occurred readily in THF without any tendency towards addition reactions at C=O or C-β. The resultant single crystals of a dimeric lithio derivative had triple Li–O coordination and a weakly bonding, ion-pair type Li&nd...
Source: Journal of Organometallic Chemistry - May 7, 2019 Category: Chemistry Source Type: research

Green, effective and chromatography free synthesis of benzoimidazo[1,2-a]pyrimidine and tetrahydrobenzo [4,5]imidazo [1,2-d]quinazolin-1(2H)-one and their pyrazolyl moiety using Fe3O4@SiO2@l-proline reusable catalyst in aqueous media
Publication date: Available online 6 May 2019Source: Journal of Organometallic ChemistryAuthor(s): Leila Zare Fekri, Mohammad Nikpassand, Samira Nazari KhakshoorAbstractl-proline-functionalized silica-coated Fe3O4 nanoparticle was synthesized and characterized using Fourier Transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDS), thermogravimetric analysis (TGA), Zeta potential and a vibrating sample magnetometer (VSM). The Fe3O4@SiO2@l-proline nanoparticles in aqeous media have...
Source: Journal of Organometallic Chemistry - May 7, 2019 Category: Chemistry Source Type: research