Synthesis and characterization of acrylate cyanide bridged dimeric fac-Rhenium(I) complex: Photophysical, selective CO2 adsorption and theoretical studies
Publication date: Available online 21 March 2019Source: Journal of Organometallic ChemistryAuthor(s): Debopam Sinha, Sankar Prasad Parua, Kajal Krishna RajakAbstractReaction of ethyl 2-cyano-3-(2-hydroxy-5-methyl-3-(p-tolylimino)methyl)phenyl)acrylate) (HL) based on 2, 6-diformyl-4-methylphenol with [Re(CO)5Cl] in toluene afforded a product of composition [Re2(CO)6(L)2]. X-ray structure of the representative complex [Re2(CO)6(L)2] was determined to confirm the molecular species unequivocally. The molecular structure of the rhenium complex exhibited distorted octahedral geometry around the Re(I) center, consistent with the ...
Source: Journal of Organometallic Chemistry - March 22, 2019 Category: Chemistry Source Type: research

New NHC cycloplatinated compounds. Significance of the cyclometalated group on the electronic and emitting properties of bis-cyanide compounds
Publication date: Available online 21 March 2019Source: Journal of Organometallic ChemistryAuthor(s): Sara Fuertes, Andrés J. Chueca, Antonio Martín, Violeta SiciliaAbstractCompounds NBu4[Pt(CˆC*A/B/C)(CN)2] (HCˆC*A = 1-(4-(ethoxycarbonyl)phenyl)-3-methyl-1H-imidazol-2-ylidene 1, HCˆC*B = 1-(4-cyanophenyl)-3-methyl-1H-imidazol-2-ylidene 2, HCˆC*C = 1-(3,5-dichlorophenyl)-3-methyl-1H-imidazol-2-ylidene 3) and NBu4 [Pt(CˆC*A/B/C)(13CN)2] (1′-3′) were synthesized by addition of KCN (or K13CN) to freshly prepared species [Pt(CˆC*A/B/C)(NCCH3)2]ClO4, in a 2:1...
Source: Journal of Organometallic Chemistry - March 22, 2019 Category: Chemistry Source Type: research

Synthesis and characterization of iridium hydride complexes with meso-Ph2PCH2P(Ph)CH2P(Ph)CH2PPh2 (meso-dpmppm) as an unsymmetric pincer ligand
Publication date: Available online 18 March 2019Source: Journal of Organometallic ChemistryAuthor(s): Tomoaki Tanase, Natsumi Mori, Kanako Nakamae, Takayuki NakajimaAbstractReaction of [IrCl(CO)(PPh3)2] with meso-bis[(diphenylphosphinomethyl)phenylphosphino]methane (meso-dpmppm) afforded a mononuclear IrI complex, [Ir(mesodpmppm−κ3)(CO)2]Cl (1), which showed excellent reactivity towards HX, H2, HCOOH, and R3SiH to yield a series of IrIII hydride complexes, [IrH(meso-dpmppm−κ3)(CO)2]X2 (X = Cl (2), PF6 (2*)), [Ir(H)2(meso-dpmppm−κ3)(CO)]Cl (4), and [IrH(SiR3)(meso-dpmppm−κ...
Source: Journal of Organometallic Chemistry - March 19, 2019 Category: Chemistry Source Type: research

Low-valent ansa-dimethylsilylene-, dimethylmethylene-bis(cyclopentadienyl) titanium compounds and ansa-titanium–magnesium complexes
Publication date: Available online 19 March 2019Source: Journal of Organometallic ChemistryAuthor(s): Jiří Pinkas, Jiří Kubišta, Michal Horáček, Karel Mach, Vojtech Varga, Róbert GyepesAbstractReduction of ansa-titanocene dichlorides [X(η5-C5H4)2TiCl2] (X = SiMe2 (1) and CMe2 (2)) in tetrahydrofuran (THF) by preactivated magnesium in the presence of bis(trimethylsilyl)acetylene (BTMSA) yielded complexes [X(η5-C5H4)2Ti(η2-BTMSA)] (X = SiMe2 (3) and CMe2 (4)). The prolonged action of excess magnesium and BTMSA resulted in the formation of ansa-titanium-magnesium compl...
Source: Journal of Organometallic Chemistry - March 19, 2019 Category: Chemistry Source Type: research

Amido-functionalized N-Heterocyclic carbene ligands and corresponding PalladiumComplexes: Synthesis, characterization and catalytic activity
Publication date: Available online 16 March 2019Source: Journal of Organometallic ChemistryAuthor(s): Vidya Zende, TejpalSingh R. Girase, Nicolas Chrysochos, Carola Schulzke, Anant R. KapdiAbstractThirteen amido functionalized N-heterocyclic carbene ligands were synthesized via a simple synthetic procedure. The synthesized ligands were characterized by NMR, FAB-MS and single crystal X-ray analysis, unanimously confirming the proposed structures. Subsequent complexation with a palladium precursor allowed the synthesis of four new complexes. The molecules structures of all four complexes were confirmed by single crystal X-ra...
Source: Journal of Organometallic Chemistry - March 16, 2019 Category: Chemistry Source Type: research

Theoretical exploration of second-order nonlinear optical properties of mono- and bimetallic Pt(II) dithienylcyclopentene complexes: Ligands and photoisomerization effect
Publication date: Available online 16 March 2019Source: Journal of Organometallic ChemistryAuthor(s): Yuan Zhang, Hong-Qiang Wang, Jin-Ting Ye, Xiang Li, Yong-Qing QiuAbstractOn the basis of great diverse applications of nonlinear optical (NLO) materials, organometallic complexes have attracted considerable attention. In this paper, we present a detailed investigation on a series of Pt(II) dithienylcyclopentene(DTE) -based complexes via density functional theory method with the aim of evaluating their structures, electronic absorption spectra and first hyperpolarizabilities. The calculations demonstrate that the first hype...
Source: Journal of Organometallic Chemistry - March 16, 2019 Category: Chemistry Source Type: research

Ferrocene appended naphthalimide derivatives: Synthesis, DNA binding, and in vitro cytotoxic activity
Publication date: 15 June 2019Source: Journal of Organometallic Chemistry, Volume 888Author(s): Deng-Guo Jia, Jia-An Zheng, Yan-Ru Fan, Jian-Qiang Yu, Xiu-Li Wu, Bo-Jin Wang, Xin-Bin Yang, Yu HuangAbstractThree novel ferrocene appended naphthalimide derivatives (2a, 2b and 6) were synthesized and characterized by IR, 1H NMR and mass spectroscopies. In electrochemical experiments, all of the ferrocene appended naphthalimide derivatives exhibited reversible one-electron oxidation in CV curves. And the DNA binding ability of the compounds was studied by ethidium bromide displacement experiments and UV–visible spectropho...
Source: Journal of Organometallic Chemistry - March 15, 2019 Category: Chemistry Source Type: research

Ultrafast electron-transfer in a fully conjugated coumarin-ferrocene donor-acceptor dyads
Publication date: Available online 9 March 2019Source: Journal of Organometallic ChemistryAuthor(s): Alex J. King, Yuriy V. Zatsikha, Tanner Blessener, Forrest Dalbec, Philip C. Goff, Mathew Kayser, David A. Blank, Yuriy P. Kovtun, Victor N. NemykinAbstractA series of a fully conjugated ferrocene-containing coumarins and B,O-chelated coumarins was prepared and characterized by a variety of spectroscopic (UV–vis, NMR, and mass spectrometry), electrochemical (CV and DPV) and spectroelectrochemical methods. The photophysical properties of the target compounds were investigated by steady-state fluorescence and ultrafast ...
Source: Journal of Organometallic Chemistry - March 11, 2019 Category: Chemistry Source Type: research

Synthesis of 1,1′-diacetylferrocene imines via catalytic oxo/imido heterometathesis
Publication date: 1 May 2019Source: Journal of Organometallic Chemistry, Volume 887Author(s): Andrey V. Pichugov, Nikolai S. Bushkov, Liudmila V. Erkhova, Pavel A. Zhizhko, Svetlana Ch. Gagieva, Dmitry N. Zarubin, Nikolai A. Ustynyuk, Dmitry A. Lemenovskii, Haojie Yu, Li WangAbstractA novel CN bond forming strategy based on oxo/imido heterometathesis between N-sulfinylamines and ketones, catalyzed by a well-defined silica-supported Ti imido complex, was applied to prepare a series of hardly accessible 1,1’-diacetylferrocene ketimines.Graphical abstract (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - March 8, 2019 Category: Chemistry Source Type: research

Ferrocene appended naphthalimide derivatives: Synthesis, DNA binding, and in vitro cytotoxic activity
Publication date: Available online 6 March 2019Source: Journal of Organometallic ChemistryAuthor(s): Deng-Guo Jia, Jia-An Zheng, Yan-Ru Fan, Jian-Qiang Yu, Xiu-Li Wu, Bo-Jin Wang, Xin-Bin Yang, Yu HuangAbstractThree novel ferrocene appended naphthalimide derivatives (2a, 2b and 6) were synthesized and characterized by IR, 1H NMR and mass spectroscopies. In electrochemical experiments, all of the ferrocene appended naphthalimide derivatives exhibited reversible one-electron oxidation in CV curves. And the DNA binding ability of the compounds was studied by ethidium bromide displacement experiments and UV-visible spectrophot...
Source: Journal of Organometallic Chemistry - March 8, 2019 Category: Chemistry Source Type: research

Regio-selective metalloradical catalyzed carbonoxygen bond cleavage of epoxides with rhodium porphyrin hydride
Publication date: Available online 5 March 2019Source: Journal of Organometallic ChemistryAuthor(s): Chun Meng Tam, Kin Shing ChanAbstractThe carbon-oxygen bond activation (COA) of epoxides with rhodium(II) and rhodium (III) porphyrins have been examined. RhIII(ttp)H (1) (ttp = 5,10,15,20-tetratolylporphyrinato dianion) was found to cleave the less sterically hindered carbon-oxygen bond of epoxides selectively at room temperature under neutral conditions to generate the stoichiometric COA product rhodium porphyrin β-hydroxyl alkyls in moderate to good yields.Graphical abstract[RhII(ttp)]2 metalloradical catalyzed ...
Source: Journal of Organometallic Chemistry - March 6, 2019 Category: Chemistry Source Type: research

Synthesis, characterization and antitumor activity of (E)-2-methyl-3-ferrocenyl-N-acrylamide derivatives
We report here the synthesis, characterization of seventeen (E)-2-methyl-3-ferrocenyl-N-acrylamides. The single crystal structures of the key intermediate b and two target compounds d5 and d6 were confirmed by X-ray crystallographic analysis. Antitumor activity of all compounds was tested in vitro. Compound d1 was the most significant one against B16-F10 cell line, indicating that it could be a good candidate for further study. Furthermore, cancer cell apoptosis assay was performed and the result indicated that compound d1 effectively fueled B16-F10 cells apoptosis in a dose-dependent manner.Graphical abstract (Source:...
Source: Journal of Organometallic Chemistry - March 6, 2019 Category: Chemistry Source Type: research

5,6-Membered CNN palladium pincer complexes of 3-benzyl-8-dimethylamino -3-azabicyclo[3.2.1]octane and 3-benzyl-9-dimethylamino-3-azabicyclo[3.3.1]nonane
Publication date: Available online 4 March 2019Source: Journal of Organometallic ChemistryAuthor(s): Ludmila A. Bulygina, Natalya S. Khrushcheva, Konstantin A. Lyssenko, Aleksander S. PeregudovAbstractThe unsymmetrical CNN pincer ligand precursors 4 and 7b based on the structures of bicyclo[3.2.l]octane and bicyclo[3.3.l]nonane have been synthesized. The corresponding palladium pincer 5,6-membered complexes 5 and 9 were prepared by direct cyclopalladation of ligand precursors with Li2PdCl4 in MeOH. The molecular structure of the palladacycles was determined by 1H and 13C NMR and confirmed by X-ray diffraction analysis. The...
Source: Journal of Organometallic Chemistry - March 5, 2019 Category: Chemistry Source Type: research

Luminescent dinuclear rhenium(I)PNA conjugates for microRNA-21 targeting: Synthesis, chemico-physical and biological characterization
Publication date: Available online 4 March 2019Source: Journal of Organometallic ChemistryAuthor(s): Silvia Cauteruccio, Monica Panigati, Lorenzo Veronese, Nadia Zaffaroni, Marco Folini, Emanuela LicandroAbstractTwo different luminescent rhenium complexes, having the general formula [Re2(μ-Cl)2(CO)6(μ-1,2-diazine)] and containing two different diazine ligands, namely 4-(pyridazin-4-yl)-butanoic acid (Re-1) and 8-(5-methylpyridazin-4-yl)-octanoic acid (Re-2), were prepared. Exploiting the presence of the carboxylic acid moieties, both complexes were further covalently linked to a 20-mer oligomer (PNA1), bearing a nucl...
Source: Journal of Organometallic Chemistry - March 5, 2019 Category: Chemistry Source Type: research

Bis(imidazolium) chloride based on 1,2-phenylenediamine as efficient ligand precursor for palladium-catalyzed Mizoroki-Heck cross-coupling reaction
Publication date: Available online 1 March 2019Source: Journal of Organometallic ChemistryAuthor(s): Ahmad Takallou, Azizollah Habibi, Azim Ziyaei Halimehjani, Saeed BalalaieAbstractBis(imidazolium) chlorides based on 1,2-phenylenediamine were introduced as efficient ligand precursors in the Pd-catalyzed Mizoroki-Heck cross-coupling reactions of substituted aryl halides with activated alkenes to afford the corresponding functionalized alkenes. While high to excellent yields (78–96%) were obtained with aryl bromides, moderate yields (51–59%) were achieved for aryl chlorides in this protocol.Graphical abstract (S...
Source: Journal of Organometallic Chemistry - March 4, 2019 Category: Chemistry Source Type: research

A pyramidal Tin(II) dication and its reactivity studies
Publication date: Available online 2 March 2019Source: Journal of Organometallic ChemistryAuthor(s): Ravindra K. Raut, Moumita MajumdarAbstractAn acyclic flexible bis(α-iminopyridine) ligand has been employed for the stabilization of chlorostannyliumylidene and a tin(II) dication. The syntheses involve the abstraction of chloride from the tin dichloride precursor using trimethylsilyl trifluoromethane sulfonate. The apically disposed tin(II) dication exhibits electrophilic behaviour and undergoes transmetallation reaction with GeCl2.dioxane resulting in stabilizing the Ge(II) dication. All the compounds have been char...
Source: Journal of Organometallic Chemistry - March 4, 2019 Category: Chemistry Source Type: research

Synthesis and comparative studies of photophysical and electrochemical properties of three different types of new heteroleptic 5-arylazo-8-hydroxyquinoline complexes of rhodium including trans → cis isomerism studies
Publication date: Available online 2 March 2019Source: Journal of Organometallic ChemistryAuthor(s): Amit Maity, Sachinath Bera, Kajal Krishna RajakAbstractRefluxing [Rh(2-phpy)2(Cl)]2 separately with the equivalent amount of 5-phenylazo-8-hydroxyquinoline (Hq1), 5-(4-fluorophenylazo)-8-hydroxyquinoline (Hq2) and 5-(4-nitrophenylazo)-8-hydroxyquinoline (Hq3) in toluene in aerobic condition afforded mononuclear orange coloured compounds having general formula [Rh(2-phpy)2(q)] in excellent yields. The complexes were substantiated by IR, 1H NMR, ESI-mass, EPR, UV–Vis and emission spectra, cyclic voltammetry, single-crys...
Source: Journal of Organometallic Chemistry - March 4, 2019 Category: Chemistry Source Type: research

Novel Cr/Ti bimetallic polyethylene catalysts synthesized through introduction of chromium species into the (SiO2/MgR2/MgCl2)·TiClx Ziegler-Natta catalyst
Publication date: Available online 3 March 2019Source: Journal of Organometallic ChemistryAuthor(s): Yi Zhou, Xuelian He, Ting Fu, Ning Zhao, Boping LiuAbstractA series of novel Cr/Ti bimetallic polyethylene catalysts were successfully synthesized for the first time through introduction of chromium species into the (SiO2/MgR2/MgCl2)·TiClx Ziegler-Natta catalysts. The bimetallic catalysts, which showed high activity, were simply prepared by refluxing titanium choloride with chromium modified silica gel/alkyl Mg adducts. Moreover, the effects of chromium content and calcination temperature were investigated in detail....
Source: Journal of Organometallic Chemistry - March 4, 2019 Category: Chemistry Source Type: research

Supramolecular polymers derived from the PtII and PdII schiff base complexes via C(sp2)–H … Hal hydrogen bonding: Combined experimental and theoretical study
Publication date: Available online 28 February 2019Source: Journal of Organometallic ChemistryAuthor(s): Alexander G. Tskhovrebov, Alexander S. Novikov, Olga V. Odintsova, Vladimir N. Mikhaylov, Viktor N. Sorokoumov, Tatiyana V. Serebryanskaya, Galina L. StarovaAbstractA synthesis of the PdII and PtII N,N-diaryldiazabutadiene complexes and their self-assembly into infinite 1-dimensional chains in the solid state via rare C (sp2)–H … Hal hydrogen bonding is reported. All the new compounds were characterized using elemental analyses (C, H, N), ESI-MS, IR, 1H and 13C NMR techniques and X-ray diffraction analysis....
Source: Journal of Organometallic Chemistry - March 1, 2019 Category: Chemistry Source Type: research

Very strong trans effect in ruthenacyclic carbamoyl complexes leads to ligand redistribution in phosphine derivatives
Publication date: Available online 28 February 2019Source: Journal of Organometallic ChemistryAuthor(s): Chandan Kr Barik, Rakesh Ganguly, Yongxin Li, Weng Kee LeongAbstractThe ruthenacyclic carbamoyl complexes [Ru (2-NHC(O)C5H4N) (CO)2(X) (NCMe)] (X = Cl, Br) (1) and [Ru (2-NHC(O)C5H4N) (CO)2 (2-S-Py)] (2) undergo substitution reactions with organophosphines to afford derivatives which are prone to a redistribution of the phosphine ligand. We have studied these redistribution reactions experimentally and computationally, and proposed an essentially common reaction pathway. The results suggest that the carbamoyl ligand...
Source: Journal of Organometallic Chemistry - March 1, 2019 Category: Chemistry Source Type: research

Accessing copper-tin-sulfide nanostructures from diorganotin(IV) and copper(I) 2-pyrazinyl thiolates
Publication date: Available online 1 March 2019Source: Journal of Organometallic ChemistryAuthor(s): Adish Tyagi, Goutam Kumar Kole, Alpa Y. Shah, Amey Wadawale, A.P. Srivastava, Mukesh Kumar, G. Kedarnath, Vimal K. JainAbstractSynthesis of air stable di-tert-butyltin(IV) and copper(I) complexes of 2-pyrazinyl thiolate (2-pyzSH), [tBu2Sn(Spyz)2] (1) and [Cu(Spyz)(PPh3)2] (2), as molecular precursors for metal sulfide nanomaterials is described. These complexes were isolated by the reactions of [tBu2SnCl2] and [CuCl(PPh3)3] with sodium 2-pyrazinyl thiolate at room temperature. The molecular structures of these complexes hav...
Source: Journal of Organometallic Chemistry - March 1, 2019 Category: Chemistry Source Type: research

Formation of anionic NHC complexes through the reaction of benzimidazoles with mercury chloride. Subsequent protonation and transmetallation reactions
Publication date: Available online 27 February 2019Source: Journal of Organometallic ChemistryAuthor(s): Ming-Hung Yu, Hsueh-Hui Yang, Yu-Chen Gu, Bo-Han Wang, Fu-Chen Liu, Ivan J.B. Lin, Gene-Hsiang LeeAbstractAnionic nitrogen heterocyclic carbene complexes of C,N-bound mercuramacrocycles {Hg4Cl4(R-Bim)4} (BimH = benzimidazole; R = Ph, Py) were prepared either from the simple reaction of N-substituted benzimidazoles with HgCl2 or from the reaction of N-substituted benzimidazoles with Hg(OAc)2 and NaCl. The former reaction is unique as no additional base is required, although in low reaction yield. Under similar re...
Source: Journal of Organometallic Chemistry - February 27, 2019 Category: Chemistry Source Type: research

Editorial Board
Publication date: 1 April 2019Source: Journal of Organometallic Chemistry, Volume 885Author(s): (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - February 27, 2019 Category: Chemistry Source Type: research

Graphical abstract TOC
Publication date: 1 April 2019Source: Journal of Organometallic Chemistry, Volume 885Author(s): (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - February 27, 2019 Category: Chemistry Source Type: research

Amidation of aldehydes using mono-cationic half-sandwich rhodium(III) complexes with functionalized phenylhydrazone ligands
Publication date: Available online 26 February 2019Source: Journal of Organometallic ChemistryAuthor(s): Neelakandan Devika, Subbiah Ananthalakshmi, Nandhagopal Raja, Gajendra Gupta, Bruno TherrienAbstractA series of mono-cationic half-sandwich rhodium(III) complexes have been synthesized in methanol using phenylhydrazone-derived ligands (L1–L6) and the starting precursor [(η5-C5Me5)2Rh2(μ-Cl)2Cl2] in a 2:1 molar ratio. The N,N′-phenylhydrazone complexes have been isolated as tetraphenylborate salts. All complexes were characterized by elemental analysis, FT-IR, UV-visible, NMR spectroscopy and mass spec...
Source: Journal of Organometallic Chemistry - February 26, 2019 Category: Chemistry Source Type: research

Chiral salen Mn (III) immobilized on ZnPS-PVPA through alkoxyl-triazole for superior performance catalyst in asymmetric epoxidation of unfunctionalized olefins
Publication date: Available online 20 February 2019Source: Journal of Organometallic ChemistryAuthor(s): Jing Huang, Sirui Liu, Yan Ma, Jiali CaiAbstractChiral salen Mn (III) catalysts anchored onto ZnPS-PVPA via click chemistry are prepared and applied in asymmetric epoxidations of unfunctionalized olefins. Superior catalytic performances (conv%, up to>99; ee%, up to>99) are achieved in the epoxidations of α-methylstyrene, styrene, indene and 1-octene. According to 6-cyano-2,2-dimethylchromene and 6-nitro-2,2-dimethylchromene, configuration of epoxides are reversed. And then the catalysts are selective in not ...
Source: Journal of Organometallic Chemistry - February 21, 2019 Category: Chemistry Source Type: research

Design and phase transition behavior of siloxane-based monomeric and dimeric liquid crystals bearing cholesteryl mesogenic groups
Publication date: Available online 20 February 2019Source: Journal of Organometallic ChemistryAuthor(s): Kaito Katsuki, Kosuke Kaneko, Kimiyoshi Kaneko, Riki Kato, Nobuyoshi Miyamoto, Tomonori HanasakiAbstractA series of siloxane-based monomeric and dimeric liquid crystals (LCs) bearing cholesteryl mesogenic groups were newly synthesized and their phase transition behavior was investigated by polarized optical microscopy (POM), differential scanning calorimetry (DSC), and X-ray diffraction (XRD). All the siloxane-based LCs obtained in this study showed a smectic A phase in a wide temperature range. Among the siloxane-based...
Source: Journal of Organometallic Chemistry - February 21, 2019 Category: Chemistry Source Type: research

Synthesis and characterization of [Rh(PP)(PP)]X complexes (PP = DPPE or DPPP, X = Cl− or BF4-). Phosphine exchange and reactivity in transfer hydrogenation conditions
Publication date: 1 April 2019Source: Journal of Organometallic Chemistry, Volume 885Author(s): Alberto Mannu, Gina Vlahopoulou, Christoph Kubis, Hans-Joachim DrexlerAbstractThe synthesis of heteroleptic monomeric cationic Rh(I) bis-diphosphine complex [Rh(dppe)(dppp)]Cl (dppe = 1,2-bis-(diphenylphosphino)ethane and dppp = 1,3-bis-(diphenylphosphino)propane) was achieved by reaction between the neutral dimeric complex [Rh2(dppe)2(μ2-Cl)2] and the dppp ligand. The corresponding complex [Rh(dppe)(dppp)]BF4 was instead obtained from reaction between [Rh(dppe)(nbd)]BF4 (nbd = bicyclo-[2.2.1]-hepta-2,5-diene) and...
Source: Journal of Organometallic Chemistry - February 20, 2019 Category: Chemistry Source Type: research

Palladium(II) and ruthenium(II) complexes of benzotriazole functionalized N-heterocyclic carbenes: Cytotoxicity, antimicrobial, and DNA interaction studies
Publication date: Available online 16 February 2019Source: Journal of Organometallic ChemistryAuthor(s): Gülnihan Onar, Canbolat Gürses, Mert Olgun Karataş, Sevgi Balcıoğlu, Nuriye Akbay, Namık Özdemir, Burhan Ateş, Bülent AlıcıAbstractIn the present study, four palladium and four ruthenium complexes were synthesized with benzotriazole substituted N-heterocyclic carbene ligands. The structures of complexes were established by appropriate spectroscopic methods and elemental analyses. In addition, the crystal structure of a PdNHC complex (1c) was reported. Anticancer, antimicrobial and DNA interact...
Source: Journal of Organometallic Chemistry - February 17, 2019 Category: Chemistry Source Type: research

Editorial Board
Publication date: 30 March 2019Source: Journal of Organometallic Chemistry, Volume 884Author(s): (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - February 17, 2019 Category: Chemistry Source Type: research

Graphical abstract TOC
Publication date: 30 March 2019Source: Journal of Organometallic Chemistry, Volume 884Author(s): (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - February 17, 2019 Category: Chemistry Source Type: research

Cyclooctadiene iridium complexes with phosphine and pentadienyl ligands
Publication date: Available online 15 February 2019Source: Journal of Organometallic ChemistryAuthor(s): Amira Reyna Madrigal, Naytzé Ortiz-Pastrana, M. Angeles Paz-SandovalAbstractReaction of [(η4-COD)Ir(μ2-Cl)]2 (1) with tin CH2CRCHCRCH2SnR′3 (R = H, Me; R' = Me, n-Bu) or lithium pentadienide reagents gives the corresponding acyclic pentadienyl sandwich compounds [(η4-COD)Ir(η5-CH2CMeCHCMeCH2) (2) and [(η4-COD)Ir(η5-CH2CHCHCHCH2) (3). Treatment of 1 with different phosphines affords the well-known mononuclear phosphine complexes [(η4-COD)IrClPR3] [R = Ph, 4; i-Pr, 5; Me...
Source: Journal of Organometallic Chemistry - February 16, 2019 Category: Chemistry Source Type: research

Hydrative syntheses of amides from alkynes catalyzed by an Au(I) complex containing pyridyl-functionalized NHC ligand
Publication date: Available online 15 February 2019Source: Journal of Organometallic ChemistryAuthor(s): Kuldeep Singh, Nilay Kumar Pal, Chirajyoti Guha, Jitendra K. BeraAbstractAn Au(I)-NHC complex [L1AuBr] (1) with appended pyridyl group on the ligand scaffold is synthesized and its catalytic efficacy for the direct synthesis of the amide from alkyne and sodium azide in acidic water is evaluated. Catalyst 1 readily converts a wide range of internal and terminal alkynes to the corresponding amides with low catalyst loading in TFA/DCE (2 mL, 1:1 v/v) at room temperature in short reaction time (2 h) and without the use ...
Source: Journal of Organometallic Chemistry - February 16, 2019 Category: Chemistry Source Type: research

Heterotrimetallic complexes of iron and ruthenium based on vinyliminium dithiocarboxylate ligands
Publication date: Available online 14 February 2019Source: Journal of Organometallic ChemistryAuthor(s): Lorenzo Mognon, Samuel Richardson, Gabriele Agonigi, Tamzin Bond, Fabio Marchetti, JamesD.E.T. Wilton-ElyAbstractThe diiron vinyliminium compounds [Fe2{μ-η1:η3-C(R2) = C(H)C=N(Me)R1}(μ-CO)(CO)(Cp)2] (R1 = Xyl = 2,6-C6H3Me2, R2 = Me; R1 = Me, R2 = CO2Me) provide a versatile entry point for many subsequent transformations, such as their reaction with carbon disulfide to provide zwitterionic dithiocarboxylate products. These compounds react with the coordinatively-unsaturated ruthenium...
Source: Journal of Organometallic Chemistry - February 15, 2019 Category: Chemistry Source Type: research

Synthesis of 1,1’-Diacetylferrocene imines via catalytic oxo/imido heterometathesis
Publication date: Available online 14 February 2019Source: Journal of Organometallic ChemistryAuthor(s): Andrey V. Pichugov, Nikolai S. Bushkov, Liudmila V. Erkhova, Pavel A. Zhizhko, Svetlana Ch Gagieva, Dmitry N. Zarubin, Nikolai A. Ustynyuk, Dmitry A. Lemenovskii, Haojie Yu, Li WangAbstractA novel CN bond forming strategy based on oxo/imido heterometathesis between N-sulfinylamines and ketones, catalyzed by a well-defined silica-supported Ti imido complex, was applied to prepare a series of hardly accessible 1,1’-diacetylferrocene ketimines.Graphical abstract (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - February 15, 2019 Category: Chemistry Source Type: research

Effect of a (hetero)aromatic spacer on the direction of cyclopalladation in ditopic pincer ligands with thione sulfur donors
Publication date: Available online 14 February 2019Source: Journal of Organometallic ChemistryAuthor(s): Diana V. Aleksanyan, Svetlana G. Churusova, Zinaida S. Klemenkova, Yulia V. Nelyubina, Alexander S. Peregudov, Vladimir A. KozlovAbstract3-Diphenylthiophosphorylaniline and isophthalic or 2,6-pyridinedicarboxylic acids were used as key precursors for the synthesis of ditopic pincer ligands bearing thioamide and thiophosphoryl donor groups. Depending on the nature of a (hetero)aromatic spacer (meta-functionalized phenylene or pyridine rings), the ligands derived underwent coordination either at the lateral or central pin...
Source: Journal of Organometallic Chemistry - February 15, 2019 Category: Chemistry Source Type: research

Reactivity studies on aminotroponiminatogermylene stabilized Ruthenium(II) complexes
Publication date: Available online 13 February 2019Source: Journal of Organometallic ChemistryAuthor(s): Dhirendra Yadav, Dharmendra Singh, Debotra Sarkar, Soumen Sinhababu, Mahendra Kumar Sharma, Selvarajan NagendranAbstractAminotroponiminatogermylene stabilized Ru(II) complexes and reactivity studies on N-heterocyclic germylene stabilized ruthenium(II) complexes were not know. Therefore, this work reports the synthesis of aminotroponiminatogermylene stabilized ruthenium(II) complexes [L1Ge(X){RuCl2(Y)}] (L1 = (i-Bu)2ATI; (ATI = aminotroponiminato), X = Cl 1, NC4H4 2, Y = η6-p-cymene), and the reactivity s...
Source: Journal of Organometallic Chemistry - February 13, 2019 Category: Chemistry Source Type: research

Bulky guanidinate calcium and zinc complexes as catalysts for the intramolecular hydroamination
Publication date: Available online 13 February 2019Source: Journal of Organometallic ChemistryAuthor(s): Milan Kr Barman, Ashim Baishya, Sharanappa NembennaAbstractMixed guanidinato-amido supported complexes of calcium, LCaN(SiMe3)2∙2THF (1) [L = {ArNC(NiPr2)NAr} (Ar = 2,6-Me2-C6H3)] and zinc, LZnN(SiMe3)2 (2) & L1ZnN(SiMe3)2 (3) [L1 = {Ar'NC(NiPr2)NAr'} (Ar' = 2,6- iPr2-C6H3)] have been synthesized by salt metathesis method. Reaction between LH or L1H and two equivalents of KN(SiMe3)2 in THF and the resultant reaction mixture upon treatment with CaI2 or ZnCl2 led to the formation of heteroleptic calc...
Source: Journal of Organometallic Chemistry - February 13, 2019 Category: Chemistry Source Type: research

Effect of ring size on the properties of μ3-Cycloalkyne complexes: Synthesis of triruthenium complexes containing a perpendicularly coordinated μ3-Allenyl ligand
Publication date: Available online 8 February 2019Source: Journal of Organometallic ChemistryAuthor(s): Moeko Saito, Shuhei Kojima, Akiko Inagaki, Koichi Seki, Toshiro TakaoAbstractA series of triruthenium complexes, [{Cp*Ru(μ-H)}3(μ3-η2:η2-CnH2n-4)] (2a, n = 6; 2b, n = 7; 2c, n = 8), containing a triply bridgin cycloalkyne ligand was synthesized. Although no noticeable differences were detected in the ground state, the rate of dynamic motion of the cycloalkyne ligand increased remarkably as the ring size increased. Owing to the flexibility of the larger rings, an allylic CH bond can interact with one of the ...
Source: Journal of Organometallic Chemistry - February 9, 2019 Category: Chemistry Source Type: research

Syntheses, structures and immobilization of arene-ruthenium complexes bearing phosphine ligands with methoxysilyl groups
Publication date: Available online 8 February 2019Source: Journal of Organometallic ChemistryAuthor(s): Jiao Ji, Fule Wu, Li-Miao Shi, Ai-Quan Jia, Qian-Feng ZhangAbstractCondensation of 3-aminopropyltrimethoxysilane and chlorodiphenylphosphine in the molar ratio of 1:1 and 1:2 in the presence of Et3N in toluene afforded aminophosphine (CH3O)3Si(CH2)3NHPPh2 (L1) and bisphosphinoamine (CH3O)3Si(CH2)3N(PPh2)2 (L2) with methoxysilyl groups, respectively. Treatment of [(η6-C6H6)RuCl2]2 with L1 in refluxing tetrahydrofuran gave a mononuclear ruthenium phosphine complex [(η6-C6H6)RuCl2(κ1-P-L1)] (1). Reaction of [(...
Source: Journal of Organometallic Chemistry - February 9, 2019 Category: Chemistry Source Type: research

Organocatalytic, regioselective allylic- and 1,6-substitution of quinone monoketals with diaryl H-phosphine oxides
Publication date: Available online 7 February 2019Source: Journal of Organometallic ChemistryAuthor(s): Biquan Xiong, Gang Wang, Congshan Zhou, Yu Liu, Chang-An Yang, Panliang Zhang, Kewen Tang, Quan ZhouAbstractAn efficient selective synthesis of C- and O-phosphoryl-substituted phenols from easily available diaryl H-phosphine oxides with quinone monoketals (QMAs) has been developed. With the assistance of opponent characteristic additives (e.g., H2O and Et3N), diaryl H-phosphine oxides could selectively proceed the allylic- and 1,6-substitution to conjugate with the C-/O- positions of QMAs. The reported protocol is green ...
Source: Journal of Organometallic Chemistry - February 8, 2019 Category: Chemistry Source Type: research

Palladium-melamine complex anchored on magnetic nanoparticles: A novel promoter for C-C cross coupling reaction
Publication date: Available online 8 February 2019Source: Journal of Organometallic ChemistryAuthor(s): Mohammad Ali BodaghifardAbstractA palladium-melamine complex deposited on Fe3O4@SiO2 nanoparticles (MNPs-Mel-Pd) was considered as an effective catalyst for C-C cross-coupling (Mirozoki-Heck) reaction. Surface and magnetic properties of the prepared core-shell hybrid nanocatalyst was characterized using Fourier transform infrared spectroscopy, X-ray diffraction, thermogravimetric analysis, energy-dispersive X-ray, vibrating sample magnetometry, transmission and scanning electron microscopy techniques and ICP/OES analysis...
Source: Journal of Organometallic Chemistry - February 8, 2019 Category: Chemistry Source Type: research

Synthesis and characterization of [Rh(PP)(PP)]X complexes (PP = DPPE or DPPP, X = Cl−, BF4-). Phosphine exchange and reactivity in transfer hydrogenation conditions
Publication date: Available online 7 February 2019Source: Journal of Organometallic ChemistryAuthor(s): Alberto Mannu, Gina Vlahopoulou, Christoph Kubis, Hans-Joachim DrexlerAbstractThe synthesis of heteroleptic monomeric cationic Rh(I) bis-diphosphine complex [Rh(dppe)(dppp)]Cl (dppe = 1,2-bis-(diphenylphosphino)ethane and dppp = 1,3-bis-(diphenylphosphino)propane) was achieved by reaction between the neutral dimeric complex [Rh2(dppe)2(μ2-Cl)2] and the dppp ligand. The corresponding complex [Rh(dppe)(dppp)]BF4 was instead obtained from reaction between [Rh(dppe)(nbd)]BF4 (nbd = bicyclo-[2.2.1]-hepta-2,5-di...
Source: Journal of Organometallic Chemistry - February 7, 2019 Category: Chemistry Source Type: research

Ethyltrioxorhenium – Catalytic application and decomposition pathways
Publication date: Available online 5 February 2019Source: Journal of Organometallic ChemistryAuthor(s): Benjamin J. Hofmann, Stefan Huber, Robert M. Reich, Markus Drees, Fritz E. KühnAbstractDespite its sensitivity, ethyltrioxorhenium (ETO) is applicable as catalyst in the epoxidation of olefins using either tert-butylhydroperoxide (TBHP) or hydrogen peroxide as oxidants. Conversions of approximately 80% with only epoxide being formed and a turnover frequency (TOF) of up to 1200 h−1 can be achieved with TBHP in 1,1,1,3,3,3-hexafluroroisopropanol (HFI). As proven for its more stable congener MTO, the active speci...
Source: Journal of Organometallic Chemistry - February 6, 2019 Category: Chemistry Source Type: research

Modulating electron transfer in ferrocene-naphthoquinone dyads: New insights in parameters influencing ET efficiency
Publication date: Available online 4 February 2019Source: Journal of Organometallic ChemistryAuthor(s): Federica Sabuzi, Alessia Coletti, Giuseppe Pomarico, Barbara Floris, Pierluca Galloni, Valeria ConteAbstractElectron transfer (ET) constitutes a key process for several biological transformations, including solar energy conversion in bacteria and plants. Nowadays, numerous synthetic systems have been proposed to mimic such kind of natural occurring process. In this work, we elucidate the factors that mostly influence the electron transfer process in ferrocene-naphthoquinone dyads. In particular, the connection between th...
Source: Journal of Organometallic Chemistry - February 5, 2019 Category: Chemistry Source Type: research

Syntheses, structures and bonding of 3d metal alkynyl complexes of cyclam and its derivatives
Publication date: Available online 3 February 2019Source: Journal of Organometallic ChemistryAuthor(s): Susannah D. Banziger, Tong RenAbstractDescribed in this review is the chemistry of 3d metal alkynyls based on tetraaza macrocyclic ligands. Both the abundance of 3d metals and easy access to the tetraazacyclotetradecane type ligands make these compounds more affordable and sustainable alternatives to metal alkynyls based on precious metals. Taking advantage of a rich variety of starting materials available in literature, the trans-[M(cyclam)(C2R)2]X type (cyclam = 1,4,8,11-tetraazacyclotetradecane) compounds have bee...
Source: Journal of Organometallic Chemistry - February 4, 2019 Category: Chemistry Source Type: research

Editorial Board
Publication date: 15 March 2019Source: Journal of Organometallic Chemistry, Volume 883Author(s): (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - February 3, 2019 Category: Chemistry Source Type: research

Graphical abstract TOC
Publication date: 15 March 2019Source: Journal of Organometallic Chemistry, Volume 883Author(s): (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - February 3, 2019 Category: Chemistry Source Type: research