Synthesis and properties of dimethylpalladium complex with new PS3-type tripodal tetradentate ligand
Publication date: Available online 4 July 2019Source: Journal of Organometallic ChemistryAuthor(s): Nobuhiro Takeda, Rin Oma, Yuki Kogure, Fumiaki Sakakibara, Yusuke Tanaka, Masafumi UnnoAbstractDimethylpalladium complex bearing PS3-type tripodal tetradentate ligand, [PdMe2{P(C6H4-2-S-i-Pr)3}], was synthesized by the reaction of [PdCl{P(C6H4-2-S-i-Pr)3}]X (X = Cl, BF4) with methyllithium (Br free). The dimethylpalladium complex reacted with an equimolar amounts of HCl to give the corresponding chloromethylpalladium complex, [PdClMe{P(C6H4-2-S-i-Pr)3}], while the similar reaction using 2 M amounts of HCl afforded the ...
Source: Journal of Organometallic Chemistry - July 5, 2019 Category: Chemistry Source Type: research

Synthesis, structure and dual-stimulus-responsive luminescence switching of a new platinum(II) complex based on 3-trimethylsilylethynyl-1,10-phenanthroline
Publication date: Available online 4 July 2019Source: Journal of Organometallic ChemistryAuthor(s): Jiajia Kang, Jun Ni, Yanqin Li, Jianjun ZhangAbstractA new diimine-platinum(II) complex, Pt(PhenC≡CSiMe3)(C≡C-C6H4-3-F)2 (1) based on 3-trimethylsilylethynyl-1,10-phenanthroline (PhenC≡CSiMe3), were synthesized and characterized. Two solvated crystals, 1·1/2(ClCH2CH2Cl) and 1·CHCl3 exhibited dual-stimulus-responsive color and luminescence switching behaviors triggered by heating or mechanical grinding. Upon heating, the color and luminescence of both complexes were changed to red with luminesc...
Source: Journal of Organometallic Chemistry - July 5, 2019 Category: Chemistry Source Type: research

A practical synthesis of quinazolinones via intermolecular cyclization between 2-halobenzamides and benzylamines catalyzed by copper(I) immobilized on MCM-41
Publication date: Available online 4 July 2019Source: Journal of Organometallic ChemistryAuthor(s): Nan Yan, Chongren You, Mingzhong CaiAbstractThe heterogeneous tandem N-arylation/oxidative C–H amidation of 2-halobenz- amides and benzylamines was achieved in DMSO at 110 or 120 °C by using an MCM-41-immobilized l-proline copper(I) complex [MCM-41-l-Proline-CuBr] as the catalyst and air as the oxidant, yielding a variety of quinazolinone derivatives in good yields. The new MCM-41-l-Proline-CuBr catalyst can easily be prepared from commercially readily available and inexpensive reagents and recovered by filtratio...
Source: Journal of Organometallic Chemistry - July 5, 2019 Category: Chemistry Source Type: research

Increasing Lewis acidity in perchlorophenyl derivatives of antimony
Publication date: Available online 3 July 2019Source: Journal of Organometallic ChemistryAuthor(s): Ma Ángeles García-Monforte, Miguel Baya, Daniel Joven-Sancho, Irene Ara, Antonio Martín, Babil MenjónAbstractThe improved synthesis of the homoleptic perchlorophenyl stibine (C6Cl5)3Sb (1a) has enabled us to obtain detailed spectroscopic and structural information. In contrast to the planar structure shown by the nitrogen homologue (C6Cl5)3N, the antimony compound 1a shows unmistakable pyramidal structure (C–Sb–C 100.9(2)°, av.) with slightly elongated Sb–C bonds (219.6(4) pm...
Source: Journal of Organometallic Chemistry - July 4, 2019 Category: Chemistry Source Type: research

Editorial Board
Publication date: 15 September 2019Source: Journal of Organometallic Chemistry, Volume 896Author(s): (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - July 3, 2019 Category: Chemistry Source Type: research

Graphical abstract TOC continued
Publication date: 15 September 2019Source: Journal of Organometallic Chemistry, Volume 896Author(s): (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - July 3, 2019 Category: Chemistry Source Type: research

Graphical abstract TOC
Publication date: 15 September 2019Source: Journal of Organometallic Chemistry, Volume 896Author(s): (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - July 3, 2019 Category: Chemistry Source Type: research

Gold(I)-catalyzed [4 + 1]/[4 + 3] annulations of diazo esters with hexahydro-1,3,5-triazines: Theoretical study of mechanism and regioselectivity
Publication date: 1 October 2019Source: Journal of Organometallic Chemistry, Volume 897Author(s): Luo-yi Zhou, Xian-ming Guo, Zhong-chao Zhang, Juan LiAbstractHexahydro-1,3,5-triazines are often used as formaldimine precursors. The recent success of Sun et al. (Angew. Chem. Int. Ed., 2016, 55, 11867) in achieving gold-catalyzed [4 + 1]/[4 + 3] annulations of hexahydro-1,3,5-triazines with diazo esters, in which the hexahydro-1,3,5-triazine is directly used as the 1,4-dipole in the annulation, represents a breakthrough in mechanistic studies. In the present work, density functional theory (DFT) calc...
Source: Journal of Organometallic Chemistry - July 3, 2019 Category: Chemistry Source Type: research

A facile method to introduce iron secondary metal centers into metal–organic frameworks
Publication date: Available online 1 July 2019Source: Journal of Organometallic ChemistryAuthor(s): Derek A. Deming, Matthew J. Hurlock, Xiaoyu Li, Kyle W. Kriegsman, Guodong Ding, Xiaofeng Guo, Qiang ZhangAbstractHerein, we report the successful incorporation of iron (0) species into a 2, 2′-bipyridine functionalized metal–organic framework (MOF) (UiO-67-bpydc). Considering the limited window size of the MOF, the smaller molecule, iron pentacarbonyl was used to introduce iron (0) to coordinate to the backbone of the MOF. The newly generated material contains the iron coordinated linker, Fe(CO)3(bpydc), which w...
Source: Journal of Organometallic Chemistry - July 1, 2019 Category: Chemistry Source Type: research

Synthesis and characterization of binuclear Pt(IV) complexes and tetranuclear mixed valence complexes of Platinum(II)-Platinum(IV)
Publication date: Available online 29 June 2019Source: Journal of Organometallic ChemistryAuthor(s): José M. Casas, Beatriz E. Diosdado, Juan Forniés, M. Ángeles García-Monforte, Raquel Laporta, Antonio Martín, Milagros TomásAbstractThe binuclear platinum(IV) complexes [NBu4]2[PtIV2(μ-Cl)2(C6F5)4Cl4] (2) and [PtIV2(μ-C8H6N4)2(C6F5)4Cl4] (4) have been synthesized by oxidative addition of chlorine to the binuclear platinum(II) species, but [NBu4]2[PtIV2(μ-OH)2(C6F5)4Cl4] (3) has been synthesized by substitution of the chloride bridges of the platinum(IV) complex. The square ...
Source: Journal of Organometallic Chemistry - June 30, 2019 Category: Chemistry Source Type: research

Naphthalene diimide carrying four ferrocenyl substitutes as an electrochemical indicator of tetraplex DNA aiming at cancer diagnosis
Publication date: Available online 29 June 2019Source: Journal of Organometallic ChemistryAuthor(s): Shinobu Sato, Atsuhito Kajima, Hisashi Hamanaka, Shigeori TakenakaAbstractNaphthalene diimide carrying four ferrocenyl substituents, tFND1 and tFND2, were newly synthesized to expect the improved binding affinity for tetraplex DNA and specific electrochemical signal generation. tFND2 shows the 1:2 binding to tetraplex A-core DNA, which has a part of human telomere sequence based on circular dichroism spectra, and the current increase of tFND2 on the tetraplex DNA-immobilized electrode was 13.5-times higher than that on the ...
Source: Journal of Organometallic Chemistry - June 30, 2019 Category: Chemistry Source Type: research

Synthesis and characterization of platinum(II) polymetallaynes functionalized with phenoxazine-based spacer. A comparison with the phenothiazine congener
Publication date: Available online 27 June 2019Source: Journal of Organometallic ChemistryAuthor(s): Wai-Yeung Wong, Li Li, Lei WangAbstractA new series of soluble, solution-processable metallopolyynes of platinum(II) functionalized with electron-rich phenoxazine–oligothiophene rings and their corresponding dinuclear model complexes were synthesized and characterized. The influence of the inclusion of thienyl rings along the polymer chain on the optical, electronic and photovoltaic properties of these metallopolymers was studied. The evolution of the singlet and triplet excited states in these metal-based materials w...
Source: Journal of Organometallic Chemistry - June 28, 2019 Category: Chemistry Source Type: research

Co(cyclam) alkynyl complexes of gem-DEE-aryl: Synthesis, molecular and electronic structures
Publication date: Available online 27 June 2019Source: Journal of Organometallic ChemistryAuthor(s): Tyler J. Azbell, Susannah D. Banziger, Brandon L. Mash, Tong RenAbstractReported in this contribution are the syntheses of mono-alkynyl complexes [Co(cyclam)(gem-DEE-Ar)Cl]Cl (cyclam = 1,4,8,11-tetraazacycloctetradecane; gem-DEE = geminal-diethynylethene) with Ar as either –C6H4-4-NO2 (1) or –C6H4-4-NMe2 (2) from the reactions between [Co(cyclam)Cl2]Cl and H-gem-DEE-Ar under weak base conditions. Further reaction between compound 1 and Li-gem-DEE–C6H4–4-NMe2 at −78 °C afforded the...
Source: Journal of Organometallic Chemistry - June 28, 2019 Category: Chemistry Source Type: research

Gold(I)-catalyzed [4 + 1]/[4 + 3] annulations of diazo esters with hexahydro-1,3,5-triazines: Theoretical study of mechanism and regioselectivity
Publication date: Available online 25 June 2019Source: Journal of Organometallic ChemistryAuthor(s): Luo-yi Zhou, Xian-ming Guo, Zhong-chao Zhang, Juan LiAbstractHexahydro-1,3,5-triazines are often used as formaldimine precursors. The recent success of Sun et al. (Angew. Chem. Int. Ed., 2016, 55, 11867) in achieving gold-catalyzed [4 + 1]/[4 + 3] annulations of hexahydro-1,3,5-triazines with diazo esters, in which the hexahydro-1,3,5-triazine is directly used as the 1,4-dipole in the annulation, represents a breakthrough in mechanistic studies. In the present work, density functional theory (DFT) calcul...
Source: Journal of Organometallic Chemistry - June 27, 2019 Category: Chemistry Source Type: research

Copper-catalyzed Mizoroki‐Heck coupling reaction using an efficient and magnetically reusable Fe3O4@SiO2@PrNCu catalyst
This study intends to design and prepare a new magnetic copper catalyst and its activity was assessed by carbon-carbon coupling reactions. For this purpose, 1-[3-(trimethoxysilyl) propyl] urea (TMSPU), hydrazine and CuI were used sequentially to modify Fe3O4@SiO2 core-shell magnetic nanoparticles to obtain an efficient magnetic transition metal catalyst. Various analytical techniques were used to characterize the catalyst to show that the achieved structure and its properties are well-suited for coupling reactions. Finally, Mizoroki‐Heck and Ullmann coupling reactions were performed using Fe3O4@SiO2@PrNCu catalyst. The n...
Source: Journal of Organometallic Chemistry - June 27, 2019 Category: Chemistry Source Type: research

Synthesis and characterization of cyclopentadienyl sulfur niobium complexes
Publication date: Available online 26 June 2019Source: Journal of Organometallic ChemistryAuthor(s): Manuel Gómez, Cristina Hernández-Prieto, Avelino Martín, Miguel Mena, Cristina SantamaríaAbstractA trimetallic sulfide cluster [Nb3(η5-C5Me5)3Cl3(μ3-Cl) (μ-S)3(μ3-S)] (2) has been synthesized from the reaction of [Nb(η5-C5Me5)Cl4] (1) with (Me3Si)2S in a 4:3 ratio by the release of SiClMe3. The trinuclear nature of complex 2 has been established by single crystal X-ray diffraction analysis. Thermal treatment of 2 with SiH3Ph generated the dinuclear niobium(IV) complex [Nb2(η5...
Source: Journal of Organometallic Chemistry - June 27, 2019 Category: Chemistry Source Type: research

Agro waste derived nanosilica supported Pd(ll) complex: A protocol for copper free Sonogashira reaction in water
Publication date: Available online 24 June 2019Source: Journal of Organometallic ChemistryAuthor(s): Rajjyoti Gogoi, Rituraj Saikia, Geetika BorahAbstractA palladium (II) complex immobilized onto nanosilica(Pd-imine@nanoSiO2) has been developed and evaluated as a highly efficient, retrievable catalyst for carbon-carbon triple bond activation reactions between aryl halides and terminal alkynes. Nanosilica has been derived from rice husk by simple and eco-compatible methodology. The catalyst has been extensively characterized by techniques such as FT-IR, UV–vis, powder XRD, XPS, SEM-EDX, thermogravimetric analysis, BET...
Source: Journal of Organometallic Chemistry - June 25, 2019 Category: Chemistry Source Type: research

Environmentally benign synthesis of pyranopyrazole derivatives by cobalt Schiff-base complexes immobilized on magnetic iron oxide nanoparticles
Publication date: Available online 24 June 2019Source: Journal of Organometallic ChemistryAuthor(s): Behrouz Shaabani, Hossein Maleki, Jamshid RakhtshahAbstractIn this work, an efficient and straight procedure has been described for one-pot three-component synthesis of pyranopyrazole derivatives in the presence of a new cobalt Schiff-base complex immobilized on silica‐coated Fe3O4 nanoparticles as a reusable catalyst. This new catalyst was characterized by different techniques, such as Fourier transform infrared (FT‐IR), X‐ray powder diffraction (XRD), field‐emission scanning electron microscopy (FE-SEM), energy‐...
Source: Journal of Organometallic Chemistry - June 25, 2019 Category: Chemistry Source Type: research

σ-Acetylide complexes for biomedical applications: Features, challenges and future directions
Publication date: Available online 22 June 2019Source: Journal of Organometallic ChemistryAuthor(s): Ashanul Haque, Rayya A. Al-Balushi, Muhammad S. KhanAbstractMono-, di- and polynuclear metal alkynyl or σ-acetylide complexes have attracted a great deal of interest due to their multi-dimensional applications. In the past few decades, several small to medium sized neutral and charged metal acetylides have been synthesized and assessed for various biomedical applications. This review explores the progress made in the design and development of rigid-rod type η1-σ-alkynyl complexes for therapeutic (viz. antica...
Source: Journal of Organometallic Chemistry - June 24, 2019 Category: Chemistry Source Type: research

Reductive coupling of diisopropylcarbodiimide by a dirhenium carbonyl complex
Publication date: Available online 24 June 2019Source: Journal of Organometallic ChemistryAuthor(s): Richard D. Adams, Poonam Dhull, Joseph Parr, Jonathan D. TedderAbstractThe reaction of Re2(CO)8(μ-H)[μ-η2-C(H) = C(H)Bun] with N,N′-diisopropylcarbodiimide yielded the new rhenium diamidinate complex [Re(CO)4]2[(μ-C2(N{iPr})4], 2, in 59% yield that was formed by the reductive coupling of two of carbodiimide molecules at the central carbon atom. The diamidinate ligand is nonplanar and four iminyl nitrogen atoms are coordinated to two Re(CO)4 groups in two chelating groups that have formed five-membered...
Source: Journal of Organometallic Chemistry - June 24, 2019 Category: Chemistry Source Type: research

Heavy alkaline earth π-complexes with doubly-reduced polycyclic aromatic hydrocarbons of variable sizes
Publication date: Available online 21 June 2019Source: Journal of Organometallic ChemistryAuthor(s): Andrew Uresk, Natalie J. O'Neil, Zheng Zhou, Zheng Wei, Marina A. PetrukhinaAbstractBarium (II) π-complexes with two planar polycyclic aromatic hydrocarbons (PAHs), anthracene and fluoranthene, have been prepared by direct alkaline earth metal reduction reactions in THF in the presence of 1,2-diiodoethane (DIE), used as an activator. The products have been crystallographically characterized to reveal their mixed-ligand composition, {[BaI(THF)3]22+[C14H10]2–} (1) and {[BaI(THF)3]22+[C16H10]2–} (2). A similar s...
Source: Journal of Organometallic Chemistry - June 22, 2019 Category: Chemistry Source Type: research

Triphenylantimony(V) catecholato complexes with 4-(2,6-dimethylphenyliminomethyl)pyridine. Structure, redox properties: The influence of pyridine ligand
Publication date: Available online 21 June 2019Source: Journal of Organometallic ChemistryAuthor(s): Ludmila S. Okhlopkova, Andrey I. Poddel'sky, Ivan V. Smolyaninov, Georgy K. Fukin, Nadezhda T. Berberova, Vladimir K. Cherkasov, Gleb A. AbakumovAbstractThe complexation of triphenylantimony(V) catecholates (3,6-DBCat)SbPh3 (1), (4,5-pip-3,6-DBCat)SbPh3 (2) and (4,5-Cl2-3,6-DBCat)SbPh3 (3) with neutral 4-(2,6-dimethylphenyliminomethyl)pyridine (Py-CH=N–Ar) leads to the formation of hexacoordinated complexes (3,6-DBCat)SbPh3·(Py-CH=N–Ar) (4), (4,5-pip-3,6-DBCat)SbPh3·(Py-CH=N–Ar) (5) and (4,5-...
Source: Journal of Organometallic Chemistry - June 22, 2019 Category: Chemistry Source Type: research

Rhodium-catalyzed formation of silylcarbamates from the reaction of secondary amines with CO2 and hydrosilanes
Publication date: Available online 20 June 2019Source: Journal of Organometallic ChemistryAuthor(s): Jefferson Guzmán, Adrián Torguet, Pilar García-Orduña, Fernando J. Lahoz, Luis A. Oro, Francisco J. Fernández-AlvarezAbstractThe reaction of (4-methyl-pyridine-2-iloxy)dimethylsilane (NSiMe–H, 1) with [RhCl(coe)2]2 gives the rhodium(III) complex [Rh(Cl)(κ2-NSiMe)] (2), which reacts with a stoichiometric amount of AgCF3CO2 to afford [Rh(κ2-CF3CO2)(κ2-NSiMe)2] (3). Complexes 2 and 3 have been fully characterized by elemental analysis and NMR spectroscopy. The solid-st...
Source: Journal of Organometallic Chemistry - June 21, 2019 Category: Chemistry Source Type: research

Evaluating ferrocene ions and all-ferrocene salts for electrochemical applications
This report presents four “all-ferrocene” salts comprised of ferrocene anions and cations and evaluates their solubility and electrochemical properties. The four salts are formed via metathesis reactions employing the (ferrocenemethyl)trimethylammonium cation and mono and bis sulfonate or carboxylate ferrocene anions. We observed that the potentials of the ferrocene components was not only dependent on the substituent, but also on the solvent medium. In particular, the sulfonate and carboxylate ferrocene anions exhibited significant shifts in redox potential between water, propylene carbonate (PC), and DMF. Mos...
Source: Journal of Organometallic Chemistry - June 21, 2019 Category: Chemistry Source Type: research

Synthesis, cytotoxicity and antineoplastic activities of novel acridine-based platinum(II) organometallic complexes
Publication date: Available online 21 June 2019Source: Journal of Organometallic ChemistryAuthor(s): Nur Amajeida Ismail, Abbas Abdulameer Salman, Mohd Sukeri Mohd Yusof, Siti Kamilah Che Soh, Khomaizon Abdul Kadir Pahirulzaman, Hapipah Mohd Ali, Rozie SaripAbstractTwo new platinum(II) complexes incorporating acridine ligands with aniline moieties were successfully synthesised and characterised. The acridine-based ligands were synthesised by means of Ullmann's condensation. The reaction of cis-[PtCl2(DMSO)2] with the aforementioned ligand in a specified mol ratio gives 9-phenylaminoacridine cis-dichloro(dimethylsulfoxide)-...
Source: Journal of Organometallic Chemistry - June 21, 2019 Category: Chemistry Source Type: research

Computational study on the catalyst-controlled synthesis of C2-substituted quinolines through the annulation of 2-vinylanilines and alkynoates
Publication date: Available online 20 June 2019Source: Journal of Organometallic ChemistryAuthor(s): Jing Zhang, Jing-Ning Lv, Fengyue Zhao, Jiaying SunAbstractDensity functional theory (DFT) calculations were employed to study the reaction mechanisms of the synthesis of C-2 functionalized indole/quinoline catalyzed by TfOH/Pd(OAc)2. Our calculated results verify the experimental phenomena that the selectivity for this reaction is catalyst-controlled. The product is C-2 functionalized indole by employing the sole catalyst TfOH. While the product will become 4-phenylquinoline-2-carboxylate by adding another catalyst TfOH. T...
Source: Journal of Organometallic Chemistry - June 20, 2019 Category: Chemistry Source Type: research

Direct C-H bond (Hetero)arylation of thiazole derivatives at 5-position catalyzed by N-heterocyclic carbene palladium complexes at low catalyst loadings under aerobic conditions
Publication date: Available online 17 June 2019Source: Journal of Organometallic ChemistryAuthor(s): Bei-Bei Ma, Xiao-Bing Lan, Dong-Sheng Shen, Feng-Shou Liu, Chang XuAbstractA highly efficient and practical protocol has been developed for the synthesis of 5-(hetero)arylated thiazole derivatives via an N-heterocyclic carbene palladium (Pd-NHC) complex catalyzed direct C-H arylation reaction. Utilization of this methodology, the arylation of substituted thiazoles with (hetero)aryl bromides efficiently proceeded at low catalyst loading (0.1–0.05 mol%) and under aerobic conditions. A variety of (hetero)aryl bromides,...
Source: Journal of Organometallic Chemistry - June 18, 2019 Category: Chemistry Source Type: research

Synthesis and investigation of catalytic activity of phenylene – And biphenylene bridged bimetallic Palladium-PEPPSI complexes
Publication date: Available online 18 June 2019Source: Journal of Organometallic ChemistryAuthor(s): Fatma İmik, Sedat Yaşar, İsmail ÖzdemirAbstractA series of phenylene and biphenylene-bridged N-heterocyclic carbene (NHC) and their bimetallic NHC–Pd-PEPPSI complexes were reported and fully characterized by 1H NMR, 13C NMR, HRMS, FTIR, and elemental analysis. The N tags with different electronic and steric properties were used on the synthesis of bridged bimetallic NHC–Pd-PEPPSI (PEPPSI: Pyridine Enhanced Precatalyst Preparation Stabilization Initiation) complexes. The catalytic properties of the bridge...
Source: Journal of Organometallic Chemistry - June 18, 2019 Category: Chemistry Source Type: research

New olefin metathesis catalyst bearing N-mesitylimidazole and nitrate ligands – Synthesis, activity, and performance in aqueous media
Publication date: Available online 16 June 2019Source: Journal of Organometallic ChemistryAuthor(s): Marta Malinowska, Mariana Kozlowska, Agnieszka Hryniewicka, Jacek W. MorzyckiAbstractA new 18-electron ruthenium complex, where ruthenium catalytic center is coordinated with the N-mesitylimidazole and nitrate ligands, as well as o-isopropoxystyrene moiety, is reported. The synthesis and detailed characterization of the Ru complex, together with density functional theory calculations (DFT), are presented. The complex is air- and moisture-stable, although has weak catalytical activity in the model metathesis reactions. Howev...
Source: Journal of Organometallic Chemistry - June 18, 2019 Category: Chemistry Source Type: research

Synthesis and characterization of unsaturated Manganese(I) and Rhenium(I) dicarbonyl complexes supported by an anionic PNP pincer
Publication date: Available online 15 June 2019Source: Journal of Organometallic ChemistryAuthor(s): Alex J. Kosanovich, Wei-Chun Shih, Oleg V. OzerovAbstractSyntheses of Re and Mn carbonyl complexes of the diarylamido/bis(phosphine) PNP pincer ligand are reported. The saturated (PNP)Re(CO)3 and (PNP)Mn(CO)3 react cleanly with HBr in acetic acid to undergo decarbonylation with concomitant addition of HBr across the N-M bond. The resultant (PNHP)MBr(CO)2 (M = Mn or Re) complexes can be dehydrobrominated with trimethylamine to yield the unsaturated (PNP)M(CO)2. (PNP)Re(CO)2 has high affinity for CO and abstracts CO from ...
Source: Journal of Organometallic Chemistry - June 16, 2019 Category: Chemistry Source Type: research

Synthesis, characterization and electrochemical behaviour of dimethyleneamine-bridged methylated and non-methylated biferrocenyl derivatives
Publication date: Available online 15 June 2019Source: Journal of Organometallic ChemistryAuthor(s): Raquel Sevilla, Marta Herrero, Beatriz Alonso, M. Pilar García-Armada, Manuel Algarra, Carmen M. CasadoAbstractTwo dimethyleneamine-bridged octamethylated and non-methylated biferrocenyl complexes, compounds 1 and 2, have been synthesized and characterized by 1H, 29Si{1H} and 13C{1H} NMR spectroscopy, and mass spectrometry. The redox activity of the ferrocenyl centers in 1 and 2 has been characterized by cyclic voltammetry in dichloromethane containing [n-Bu4N][PF6], [n-Bu4N][B(C6F5)4] or [n-Bu4N]Cl as electrolyte su...
Source: Journal of Organometallic Chemistry - June 16, 2019 Category: Chemistry Source Type: research

Room temperature fast synthesis four-membered red iridium(III) complexes containing Ir–S–P–S structures for OLEDs
Publication date: Available online 15 June 2019Source: Journal of Organometallic ChemistryAuthor(s): Ning Su, Cheng-Zhen Shen, You-Xuan ZhengAbstractOne S atom contained ligand triethylamine salt of diphenylphosphinodithioic acid (dpss) was firstly developed for two four-membered red-emitting iridium(III) complexes with Ir–S–P–S structures, (tfmpiq)2Ir(dpss) and (tfmpqz)2Ir(dpss), in which 1-(4-(trifluoromethyl)phenyl)isoquinoline (tfmpiq) and 4-(4-(trifluoromethyl)phenyl)quinazoline (tfmpqz) were employed as the cyclometalated ligands, respectively. Owing to strong bonding ability of sulfur and iridium a...
Source: Journal of Organometallic Chemistry - June 16, 2019 Category: Chemistry Source Type: research

Synthesis and reactivity of phosphine-arenesulfonate Palladium(II) alkyl complexes that contain methoxy substituents
Publication date: Available online 14 June 2019Source: Journal of Organometallic ChemistryAuthor(s): Qian Liu, Richard F. JordanAbstractPhosphine-arenesulfonate ligands that contain 1-3 methoxy substituents on the benzo linker, P(2-OMe-Ph)2(2-SO3Na-5-OMe-Ph) (Na[1a]), P(2-MeO-Ph)2(2-SO3Na-4,5-(OMe)2-Ph) (Na[1b]) and P(2-MeO-Ph)2(2-SO3Li-3,4,5-(OMe)3-Ph) (Li[1c]) were synthesized and isolated in 52–85% yield. Reaction of Na[1a,b] and Li[1c] with (COD)PdMeCl and pyridine generates the corresponding (PO)PdMe(pyridine) complexes 2a-c. 2a and 2b were isolated in crystalline form in 59% and 86% yield, respectively, while 2...
Source: Journal of Organometallic Chemistry - June 15, 2019 Category: Chemistry Source Type: research

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