Study on synthesis, characterization, and nonvolatile memory behavior of ferrocene-containing metallopolymers
Publication date: Available online 25 April 2019Source: Journal of Organometallic ChemistryAuthor(s): Xiaozhe Cheng, Md Asaduzzaman, Hong Lian, Zheng Zhong, Hongen Guo, Qingchen Dong, V.A.L. RoyAbstractIn this work, two metallopolymers (P1 and P2) were designed and synthesized through coupling of ferrocene-anchored fluorene derivatives with porphyrin and benzene based diethynyl ligand, respectively. The chemical structure and physical properties of these two metallpolymers were fully characterized, which indicate that these two metallopolymers are thermally stable and semiconducting. Then, sandwich-like organic resistive m...
Source: Journal of Organometallic Chemistry - April 26, 2019 Category: Chemistry Source Type: research

Ruthenium-cymene containing pyridine-derived aldiimine ligands: Synthesis, characterization and application in the transfer hydrogenation of aryl ketones and kinetics studies
Publication date: Available online 25 April 2019Source: Journal of Organometallic ChemistryAuthor(s): Thiago S. Ramos, Diego M. Luz, Rebecca D. Nascimento, Andressa K. Silva, Luciano M. Lião, Victor M. Miranda, Victor M. Deflon, Márcio P. de Araujo, Leonardo T. Ueno, Francisco B.C. Machado, Luís R. Dinelli, André L. BogadoAbstractFive electron-rich NN′−pyridylimine ligands, which form five-membered chelate ring when coordinate to a metal center, have been synthesized by the easily accessible condensation between 2-pyridinecarboxyaldhehyde and the corresponding substituted aniline in ...
Source: Journal of Organometallic Chemistry - April 26, 2019 Category: Chemistry Source Type: research

Tricarbonylrhenium(I) complexes with heterodentate ligands based on functionalized amides: Synthesis, structural features, and cytotoxic activity
Publication date: Available online 26 April 2019Source: Journal of Organometallic ChemistryAuthor(s): Diana V. Aleksanyan, Svetlana G. Churusova, Ekaterina Yu Rybalkina, Oleg I. Artyushin, Alexander S. Peregudov, Yulia V. Nelyubina, Zinaida S. Klemenkova, Olga V. Bykhovskaya, Vladimir A. KozlovAbstractThe reactions of 2-diphenylphosphorylaniline with 2-methylsulfanylbenzoyl chloride or 2-diphenylphosphinobenzoic acid in the presence of a coupling agent afforded new potentially tridentate ligands with different donor sets. Upon interaction with Re(CO)5Br, the compounds obtained formed either bidentately bound molecular or p...
Source: Journal of Organometallic Chemistry - April 26, 2019 Category: Chemistry Source Type: research

Dual visible/NIR emission from organometallic iridium(III) complexes
Publication date: Available online 25 April 2019Source: Journal of Organometallic ChemistryAuthor(s): Kaitlin A. Phillips, Thomas M. Stonelake, Peter N. Horton, Simon J. Coles, Andrew J. Hallett, Sean P. O'Kell, Joseph M. Beames, Simon J.A. PopeAbstractA series of four substituted benzo[g]quinoxaline species have been synthesised and utilised as cyclometalating ligands for iridium(III). The ligands (L1-L4) were synthesised and isolated in good yield following the condensation of 2,3-diaminonaphthalene with benzil and three of its derivatives. The substituent modulated electronic properties of L1-L4 were dominated by intral...
Source: Journal of Organometallic Chemistry - April 25, 2019 Category: Chemistry Source Type: research

Biosketch – Professor Armando J. L. Pombeiro: “Synthesis and Applications of Organometallic Compounds”
Publication date: Available online 10 April 2019Source: Journal of Organometallic ChemistryAuthor(s): Georgiy B. Shul'pin, Luísa M. Martins, Richard Adams (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - April 25, 2019 Category: Chemistry Source Type: research

Novel Silver-NHC complexes: Synthesis and anticancer properties
Publication date: Available online 24 April 2019Source: Journal of Organometallic ChemistryAuthor(s): Serap Şahin-Bölükbaşı, Neslihan ŞahinAbstractThe aim of this study was to present the synthesis, characterization and anticancer activities of two novel benzimidazole-based NHC salts (1a-b) and their silver(I) complexes (2a-b) with methylbenzyl and isopropylbenzyl chains. All compounds were prepared using Schlenk techniques in an inert atmosphere. The carbene complexes were prepared with the interaction of carbene precursors and Ag2O. All new compounds were characterized by elemental analysis, LC-MS, FT-IR, 1...
Source: Journal of Organometallic Chemistry - April 25, 2019 Category: Chemistry Source Type: research

Editorial Board
Publication date: 15 July 2019Source: Journal of Organometallic Chemistry, Volume 890Author(s): (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - April 25, 2019 Category: Chemistry Source Type: research

Graphical abstract TOC
Publication date: 15 July 2019Source: Journal of Organometallic Chemistry, Volume 890Author(s): (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - April 25, 2019 Category: Chemistry Source Type: research

Electronic structure and conformational isomerism of the digermene (tBu2MeSi)2Ge=Ge(SiMetBu2)2 as studied by temperature-dependent Raman and UV–vis spectra and quantum-chemistry calculations
Publication date: Available online 22 April 2019Source: Journal of Organometallic ChemistryAuthor(s): Rinat R. Aysin, Sergey S. Bukalov, Larissa A. Leites, Vladimir Ya Lee, Akira SekiguchiAbstractThe structure of the digermene (tBu2MeSi)2Ge = Ge(SiMetBu2)2 (1) was investigated by experimental (Raman and UV–vis) as well as computational (NCA, TD DFT and QTAIM) methods. Temperature-dependent Raman and UV–vis spectra have demonstrated that 1 does not dissociate into the corresponding germylenes on heating either to 120 °C as a solid or to 80 °C in solution, thus preserving the integrity of its doub...
Source: Journal of Organometallic Chemistry - April 23, 2019 Category: Chemistry Source Type: research

Cytotoxicity of cationic NHC copper(I) complexes coordinated to 2,2'-bis-pyridyl ligands
Publication date: Available online 21 April 2019Source: Journal of Organometallic ChemistryAuthor(s): Margaux Elie, Gilbert Umuhire Mahoro, Eric Duverger, Jean-Luc Renaud, Richard Daniellou, Sylvain GaillardAbstractCytotoxicity of cationic (NHC)Cu(I) complexes bearing 2,2′-dipyridylamine (dpa) type ligands has been evaluated toward 4 cancer cell lines, and compared to the one of neutral (NHC)Cu(I) complexes. The high cytotoxicity of these novel cationic (NHC)Cu(I) complexes, combined with the straightforward synthesis, and versatility of dpa type ligands may offer new prospects in cancer research, toward the developm...
Source: Journal of Organometallic Chemistry - April 22, 2019 Category: Chemistry Source Type: research

Homoleptic cis- and trans-palladium(II) bis(guanidinato) complexes derived from N-aryl-N′,N″-di(pyridin-2-yl)- and N-aryl-N′,N″-bis(6-methylpyridin-2-yl)guanidines: Catalysts for Heck-Mizoroki coupling reactions
Publication date: Available online 20 April 2019Source: Journal of Organometallic ChemistryAuthor(s): Vishwesh Mishra, Jisha Mary Thomas, Sivasankar Chinnappan, Natesan ThirupathiAbstractN-Aryl-N′,N″-di(pyridin-2-yl)- and N-aryl-N′,N″-bis(6-methylpyridin-2-yl)guanidines (1–4 and 5–7) were isolated in 75%–81% yields. Reactions of Pd(OAc)2 with guanidines 2–7 carried out separately in toluene at 60 °C for 3 h afforded 8–13 respectively in 69%–80% yields. Compounds 1–13 were characterized by elemental analyses, HR-MS, IR and NMR (1H and 13C) spectroscop...
Source: Journal of Organometallic Chemistry - April 22, 2019 Category: Chemistry Source Type: research

Amphiphilic bimetallic polymer as single-source precursors for the one-pot synthesis of L10-phase FePt nanoparticles
Publication date: Available online 20 April 2019Source: Journal of Organometallic ChemistryAuthor(s): Zhengong Meng, Zhuoxun Wei, Kuo Fu, Lei Lv, Zhen-Qiang Yu, Wai-Yeung WongAbstractAmphiphilic polymers have attracted extensive research attention in constructing various nanostructures by self-assembly. Here we designed and synthesized two amphiphilic bimetallic polymers with different length of the tails P1 and P2, in which Fe,Pt-containing conjugated complex acted as the hydrophobic block and hydrophilic poly(ethylene glycol) (PEG) was bonded to the bimetallic core as the flexible tails. P1 and P2 were used as the single...
Source: Journal of Organometallic Chemistry - April 22, 2019 Category: Chemistry Source Type: research

Crosslinked polymers based on polyborosiloxanes: Synthesis and properties
Publication date: Available online 20 April 2019Source: Journal of Organometallic ChemistryAuthor(s): Fedor V. Drozdov, Sergey A. Milenin, Vadim V. Gorodov, Nina V. Demchenko, Michail I. Buzin, Aziz M. MuzafarovAbstractIn current work, crosslinked polyborosiloxanes (PBS) were synthesized by the Piers-Rubinsztajn reaction based on polydimethylsiloxanes (PDMS) with terminal dimethylhydrosilyl or distributed methylhydrosilyl groups in the polymer chain and boronic or phenyl boronic acid methyl esters. Depending on the number and location of the methylhydrosilyl groups in the initial PDMS, as well as on the functionality of th...
Source: Journal of Organometallic Chemistry - April 22, 2019 Category: Chemistry Source Type: research

Synthesis and structural characterisation of 1’-(diphenylphosphino)ferrocene-1-phosphonic acid, its ammonium salts and Pd(II) complexes
Publication date: Available online 17 April 2019Source: Journal of Organometallic ChemistryAuthor(s): Filip Horký, Ivana Císařová, Jiří Schulz, Petr ŠtěpničkaAbstractA new polar phosphinoferrocene ligand, viz. 1’-(diphenylphosphino)ferrocene-1-phosphonic acid (H2L), was prepared by hydrolysis of the corresponding phosphonate ethyl ester. However, the compound is relatively unstable, gradually decomposing upon prolonged storage, ultimately affording phosphine oxide H2LO. When the phosphine moiety was protected (e.g., in phosphine oxide H2LO and adduct H2L·BH3), no decompos...
Source: Journal of Organometallic Chemistry - April 19, 2019 Category: Chemistry Source Type: research

Versatile coordination modes of benzothiazole hydrazone derivatives towards Ru(II), Rh(III) and Ir(III) complexes and their reactivity studies with azides and activated alkynes
Publication date: Available online 17 April 2019Source: Journal of Organometallic ChemistryAuthor(s): Lincoln Dkhar, Werner Kaminsky, Krishna Mohan Poluri, Mohan Rao KolliparaAbstractMetal precursors of the type [(p-cymene)RuCl2]2 and [Cp*MCl2]2 (M = Rh/Ir) on reacting with benzothiazole hydrazones ligands (L1 = benzylidenehydrazinyl benzothiazole, L2 = 4-flourobenzylidenehydrazinyl benzothiazole and L3 = 4-methylbenzylidenehydrazinyl benzothiazole) in the ratio of 1:2 (M:L), leads to the formation of range of complexes. In the case of ruthenium precursor with ligand L1, a cationic complex [(p-cymene)Ru{&ka...
Source: Journal of Organometallic Chemistry - April 17, 2019 Category: Chemistry Source Type: research

Special Issue on Synthesis and Applications of Organometallic Compounds
Publication date: Available online 15 April 2019Source: Journal of Organometallic ChemistryAuthor(s): Georgiy B. Shul’pin, Luísa M. Martins, Richard D. Adams (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - April 16, 2019 Category: Chemistry Source Type: research

Cross-linked polystyrene/titanium tetrachloride as a tightly bound complex catalyzed the modified Mannich reaction for the synthesis of piperidin-4-ones
Publication date: Available online 16 April 2019Source: Journal of Organometallic ChemistryAuthor(s): Ali Rahmatpour, Reza Emen, Ghazal AminiAbstractCross-linked polystyrene beads were prepared, characterized and the resulting polymer carrier was functionalized with titanium tetrachloride (TiCl4) via complexation of polystyrene with TiCl4 to afford the corresponding cross-linked polystyrene-TiCl4 stable complex (PSt/TiCl4) in an one step reaction and characterized by FT-IR, UV, TGA, DSC, XRD, SEM, BET. This tightly bound coordination complex was used as a water tolerant, heterogeneous, recoverable and reusable Lewis acid c...
Source: Journal of Organometallic Chemistry - April 16, 2019 Category: Chemistry Source Type: research

Editorial Board
Publication date: 1 July 2019Source: Journal of Organometallic Chemistry, Volume 889Author(s): (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - April 16, 2019 Category: Chemistry Source Type: research

Graphical abstract TOC
Publication date: 1 July 2019Source: Journal of Organometallic Chemistry, Volume 889Author(s): (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - April 16, 2019 Category: Chemistry Source Type: research

Domino [Pd]-Catalysis: Heck followed by decarboxylative Sonogashira couplings under microwave irradiation in aqueous medium
Publication date: 15 July 2019Source: Journal of Organometallic Chemistry, Volume 890Author(s): Karu Ramesh, Gedu SatyanarayanaAbstractA copper free [Pd]-catalyzed domino intramolecular Heck and intermolecular decarboxylative Sonogashira couplings, for the synthesis of alkyne bearing heterocyclic compounds with a quaternary carbon atom, is described. Notably, this dual bond forming strategy is successful in water solvent, under microwave irradiation. This one-pot operation enabled the formation of a variety of dihydrobenzofurans, indolines and oxindoles, in very good to near quantitative yields. Notably, unlike earlier rep...
Source: Journal of Organometallic Chemistry - April 16, 2019 Category: Chemistry Source Type: research

Synthesis, characterization of novel isoindolinyl- and bis-isoindolinylphenylboronic anhydrides. Antiproliferative activity on glioblastoma cells and microglial cells assays of boron and isoindolines compounds
Publication date: Available online 14 April 2019Source: Journal of Organometallic ChemistryAuthor(s): Teresa Mancilla Percino, José Eduardo Guzmán Ramírez, Elvia Mera Jiménez, Cynthia Raquel Trejo MuñozAbstractBoron compounds importance have been raising due to the development of its synthesis and remarkable biological activities, so in this manner the study here presented is focused on the synthesis of novel isoindolinylphenylboronic anhydrides (2a, 2c and 2e) and bis-isoindolinylphenylboronic anhydrides (2b and 2d), as well as a comparative study of the antiproliferative activity of the...
Source: Journal of Organometallic Chemistry - April 16, 2019 Category: Chemistry Source Type: research

Synthesis, photophysical and electrochemical properties of naphthaldimine based boron complexes
Publication date: Available online 14 April 2019Source: Journal of Organometallic ChemistryAuthor(s): Ramu V. Ranga Naidu Chinta, Basava Punna Rao Aradhyula, Anna Chandrasekar Murali, Krishnan VenkatasubbaiahAbstractNaphthaldehyde based imine ligands (L1H2 and L2H3) have been designed and synthesized. The coordination of imine ligands with BF2 motif and BPh2 motif lead to the formation of complexes 1–4. Both the ligands and the boron complexes were characterized by multinuclear NMR spectroscopy and mass spectrometry. Boron NMR of the complexes revealed that the boron atom is in tetracoordinate environment. The optica...
Source: Journal of Organometallic Chemistry - April 14, 2019 Category: Chemistry Source Type: research

Theoretical investigation on the palladium-catalyzed diastereoselective oxidative carbocyclization of enallenes assisted by hydroxyl group
Publication date: Available online 13 April 2019Source: Journal of Organometallic ChemistryAuthor(s): Ping Wang, Jiaying Sun, Zhangyu Yu, Lingli Han, Tao LiuAbstractThe reaction mechanisms on the palladium-catalyzed oxidative carbocyclization of enallenes assisted by weak coordination hydroxyl groups have been computationally investigated by employing density functional theory (DFT) calculations. The allyl C-H activation is the rate-determining step and the olefin insertion is the diastereoselectivity-determining step. The calculated results can explain the lower diastereoselectivity obtained in the experiment when the OH ...
Source: Journal of Organometallic Chemistry - April 13, 2019 Category: Chemistry Source Type: research

Biosketch – Professor Armando J. L. Pombeiro: For special issue “Synthesis and Applications of Organometallic Compounds”
Publication date: Available online 10 April 2019Source: Journal of Organometallic ChemistryAuthor(s): Georgiy B. Shul’pin, Luísa M. Martins, Richard Adams (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - April 11, 2019 Category: Chemistry Source Type: research

Synthesis and biodistribution of 1-[2-(cyclopentadienyltricarbonyltechnetium-99m)-2-oxo-ethoxy-phenyl]-1,2-di- (p-hydroxyphenyl)but-1-ene for tumor imaging
Publication date: Available online 11 April 2019Source: Journal of Organometallic ChemistryAuthor(s): Tesnim Dallagi, Mouldi Saidi, Gérard Jaouen, Siden TopAbstractThe high incidence and mortality of breast cancer and other estrogen receptor related tumors motivates efforts to develop innovative imaging probes to effectively diagnose, evaluate the extent of the tumor, and predict the efficacy of treatments while concurrently and selectively delivering anticancer agents to the cancer tissues. In the present study, 1-[2-(cyclopentadienyltricarbonyltechnetium-99m)-2-oxo-ethoxy-phenyl]-1,2-di-(p-hydroxyphenyl)but-1-ene ...
Source: Journal of Organometallic Chemistry - April 11, 2019 Category: Chemistry Source Type: research

Modulation of the solubility properties of arene ruthenium complexes bearing stannyl ligands as potential anti-cancer agents
Publication date: Available online 8 April 2019Source: Journal of Organometallic ChemistryAuthor(s): Clara Berg, Suviti Chari, Kaste Jurgaityte, Alice Laurora, Mateusz Naldony, Frances Pope, Dario Romano, Thato Medupe, Sharon Prince, Siyabonga Ngubane, Judith Baumgartner, Burgert BlomAbstractCleavage of the known ruthenium dimer [RuCl2(η6-C6H5OCH2CH2OH)]2 (1), bearing a hydrophilic substituent on the η6 coordinated aromatic ring, with the phosphine ligands: triphenyl phosphine, triphenyl phosphite, trimethyl phosphite, and 1,3,5-triaza-7-phosphaadamantane (PTA) afforded the known complexes [RuCl2(η6-C6H5OCH2CH2...
Source: Journal of Organometallic Chemistry - April 10, 2019 Category: Chemistry Source Type: research

DNA-binding, cytotoxicity and apoptosis induction of Pt/Fe-based heterometallo-supramolecular polymer for anticancer drug application
Publication date: Available online 8 April 2019Source: Journal of Organometallic ChemistryAuthor(s): Utpal Rana, Chanchal Chakraborty, Miki Kanao, Hiromi Morita, Takashi Minowa, Masayoshi HiguchiAbstractWe synthesized two Pt/Fe-based metallo-supramolecular polymers with Pt (II) and Fe(II) introduced alternately (polyFePtL1 and polyFePtL2) for anticancer drug application. They have octahedral Fe(II)-centers and square-planar Pt (II)-centers bound with acetylide TPY (4-ethynyl-(2,2′:6′,2″-terpyridine) and ‒PEt3 (polyFePtL1) or ‒PPh3 (polyFePtL2). We measured their binding affinity to calf-thymus DNA (ct...
Source: Journal of Organometallic Chemistry - April 10, 2019 Category: Chemistry Source Type: research

Design of organoruthenium complexes for nanoparticle functionalization
We report a ligand with a catechol group based on a picolinamide which allows for coordination to organoruthenium moieties while the catechol group remains available for loading on nanoparticles as delivery vehicles towards tumors. All the compounds were characterized with standard analytical methods and the molecular structures of the ligand 1, and its Ru complexes 1a and 1b were determined by X-ray diffraction analysis. The crystal structure of 1a and 1b showed pseudo-octahedral geometry of the Ru center with “piano-stool” conformation and 1 coordinated as an N,O-bidentate ligand, however, the latter dependin...
Source: Journal of Organometallic Chemistry - April 10, 2019 Category: Chemistry Source Type: research

Influence of pyrido-annulation on N,N′-dineopentyl-imidazolin-2-ylidene and associated transition metal complexes; comparison with benzo-, naphtho- and quinoxalino-annulation
Publication date: Available online 6 April 2019Source: Journal of Organometallic ChemistryAuthor(s): Farman Ullah, Saravanakumar Shanmuganathan, Claudia Schindler, Peter G. Jones, Joachim W. HeinickeAbstractThe syntheses of isolable N,N′-dineopentyl-substituted non- and pyrido-annulated imidazolin-2-ylidenes and selected Ag, Rh and Pd complexes thereof, in part earlier communicated, are now reported in full detail. The compounds were structurally characterized by multinuclear NMR and in part by crystal structure analyses. Diagnostic structural and NMR data were compared with those of analogously N,N′-dineopenty...
Source: Journal of Organometallic Chemistry - April 7, 2019 Category: Chemistry Source Type: research

Stereochemistry of oxidative addition reactions of cycloneophyl complexes of Platinum(II): A methylene insertion reaction from dichloromethane
Publication date: Available online 4 April 2019Source: Journal of Organometallic ChemistryAuthor(s): Mahmood Azizpoor Fard, Ava Behnia, Richard J. PuddephattAbstractUnusual features are observed in studies of oxidative addition to cycloneophylplatinum(II) complexes [Pt(CH2CMe2C6H4)(NN)], 2, NN = 3,4,7,8-tetramethyl-1,10-phenanthroline (phen*) or 3, NN = 4,4′-di-t-butyl-2,2′-bipyridine (bubipy). The oxidative addition of 4-nitrobenzyl bromide to 2 or of HgCl2 to 3 occurs with cis stereochemistry to give [PtBr(CH2-4-C6H4NO2)(CH2CMe2C6H4)(phen*)] or [PtCl(HgCl)(CH2CMe2C6H4)(bubipy)], whereas similar ...
Source: Journal of Organometallic Chemistry - April 5, 2019 Category: Chemistry Source Type: research

Different properties of P,C-donor Pd(II) and Pt(II); spectroscopic and X-ray analysis, catalytic potential and anti-proliferative potency
Publication date: Available online 30 March 2019Source: Journal of Organometallic ChemistryAuthor(s): Abed Yousefi, Seyyed Javad Sabounchei, Seyed Hamed Moazzami Farida, Roya Karamian, Nosrat Rahmani, Robert W. GableAbstractThis account describes our recent studies on pallada-and platinaphosphacycle complexes with an unsymmetrical phosphonium ylide, Ph2PC(CH2)PPh2 = C(H)C(O)C6H4-p-NO2 (Y), derived from 1,1-bis(diphenylphosphino)ethylene (dppee). These complexes have been prepared through reactions between (Y) and [MCl2(cod)] (M = Pd (C1) or Pt (C2); cod = 1,5-cyclooctadiene) in equimolar ratio in the hope of fi...
Source: Journal of Organometallic Chemistry - March 30, 2019 Category: Chemistry Source Type: research

Group VIII carbamoyl complexes as catalysts for alkyne hydrocarboxylation and electrochemical proton reduction
Publication date: Available online 27 March 2019Source: Journal of Organometallic ChemistryAuthor(s): Chandan Kr Barik, Malcolm E. Tessensohn, Richard D. Webster, Weng Kee LeongAbstractA series of group VIII carbamoyl complexes, [M(2-NHC(O)C5H4N)(CO)2(2-SC5H4N)] [where M = Fe, Ru and Os], was found to be efficient and regioselective catalysts for the intramolecular hydroxycarboxylation of α,ω-alkynoic acids, yielding exocyclic enol lactones for ring sizes up to 7 atoms, and endocyclic enol lactones for ring sizes up to 12 atoms. They also catalysed the regioselective intermolecular hydroxycarboxylation reac...
Source: Journal of Organometallic Chemistry - March 28, 2019 Category: Chemistry Source Type: research

Synthesis, characterization and single crystal X-ray studies of pincer type Ni(II)-Schiff base complexes: Application in synthesis of 2-substituted benzimidazoles
Publication date: Available online 27 March 2019Source: Journal of Organometallic ChemistryAuthor(s): Bhumika Agrahari, Samaresh layek, Rakesh Ganguly, Necmi Dege, Devendra D. PathakAbstractFive new pincer type Ni(II)-Schiff base complexes of the general formula [NiL1(PPh3)] 1, [NiL2(PPh3)] 2, [NiL3(PPh3)] 3, [NiL4(PPh3)] 4 and [NiL4(4-MePy)] 5 [where H2L1 = 2-(2,3-dihydroxybenzylideneamino)phenol, H2L2 = N-(2,3-dihydroxybenzylidene)benzohydrazide, H2L3 = 2-(2,3-dihydroxybenzylidene)hydrazinecarbothioamide, H2L4 = 5-(diethylamino)-2-(2-hydroxybenzylideneamino)phenol, 4-MePy = 4-Methylpyridine] were synt...
Source: Journal of Organometallic Chemistry - March 28, 2019 Category: Chemistry Source Type: research

The chiral boronate-catalyzed asymmetric transfer hydrogenation of various aromatic ketones to high-value alcohols: Preparation and spectroscopic studies
Publication date: Available online 27 March 2019Source: Journal of Organometallic ChemistryAuthor(s): Ahmet Kilic, Mustafa Durgun, Feyyaz Durap, Murat AydemirAbstractThis work deals with the synthesis, spectroscopic studies and catalytic evaluation of the novel chiral salen (L1H2) and (L2H2) ligands and their chiral boronate [L1(B1-4)] and [L2(B1-4)] complexes. Initially, the reaction of 5-azidomethyl salicylaldehyde and (R)-(−)-2-amino-1-butanol in absolute ethanol afforded a new chiral salen ligand (L1H2). Then, a novel chiral salen ligand (L2H2) have been prepared from chiral salen ligand (L1H2) for the synthesis ...
Source: Journal of Organometallic Chemistry - March 28, 2019 Category: Chemistry Source Type: research

DFT study of inter-ring haptotropic rearrangement in CpRu+ complexes of polycyclic aromatic ligands
Publication date: Available online 26 March 2019Source: Journal of Organometallic ChemistryAuthor(s): Igor P. Gloriozov, Mikhail S. Nechaev, Kirill V. Zaitsev, Yuri F. Oprunenko, Franck Gam, Jean-Yves SaillardAbstractInter-ring haptotropic rearrangements (IRHRs) of different types are well-known phenomena in organometallic and catalytic chemistry. So far, they are reported for transition metal complexes with carbo- and heterocyclic polyaromatic hydrocarbons (PAH) of small and medium size. Here, we report DFT studies of RuCp+ shifts between neighboring six-membered rings (η6⇌ η6-IRHR) on an extra-large PAH as a mo...
Source: Journal of Organometallic Chemistry - March 27, 2019 Category: Chemistry Source Type: research

Catalytic ring-closing reactions of gold compounds containing bis(phosphino)ferrocene ligands
Publication date: Available online 22 March 2019Source: Journal of Organometallic ChemistryAuthor(s): Toni A. Michaels, Olivia F. Pritchard, Justine S. Dell, Mark W. Bezpalko, W. Scott Kassel, Chip NataroAbstractThe efficiency of various gold compounds containing bis(phosphino)ferrocene ligands for catalyzing ring-closing reactions was examined. Six commercially available bis(phosphino)ferrocene ligands: 1,1′-bis(ditert-butylphosphino)ferrocene (dtbpf), 1,1′-bis(diphenylphosphino)ferrocene (dppf), 1,1′-bis(dicylohexylphosphino)ferrocene (dcpf), 1,1′-bis(diiso-propylphosphino)ferrocene (dippf), 1-dip...
Source: Journal of Organometallic Chemistry - March 24, 2019 Category: Chemistry Source Type: research

Editorial Board
Publication date: 1 May 2019Source: Journal of Organometallic Chemistry, Volume 887Author(s): (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - March 22, 2019 Category: Chemistry Source Type: research

Graphical abstract TOC
Publication date: 1 May 2019Source: Journal of Organometallic Chemistry, Volume 887Author(s): (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - March 22, 2019 Category: Chemistry Source Type: research

Reactions of alkynes- copper-catalyzed cyclization of functionalized alkynes with elemental sulfur/selenium to form oxathiines/oxaselenines
Publication date: Available online 19 March 2019Source: Journal of Organometallic ChemistryAuthor(s): D. Gattaiah, Alla Siva Reddy, Shabbir Ahmed Khan, K.C.Kumara SwamyAbstractIn this article, a part of the work related to the reactivity of alkynes from our group will be highlighted. These include (i) [Pd]-catalyzed double arylation and phosphonylation of phosphonoalkynes, (ii) Ruthenium catalyzed insertion of alkyne into aromatic amides/amines that involves C-H activation, (iii) [Pd]- or [Cu]-catalyzed cyclization reactions of ynamides, (iv) [Cu]-catalyzed click and intramolecular arylation and (v) [Cu]-catalyzed cyclizat...
Source: Journal of Organometallic Chemistry - March 22, 2019 Category: Chemistry Source Type: research

Pascual Royo_Biosketch
Publication date: Available online 20 March 2019Source: Journal of Organometallic ChemistryAuthor(s): Tomás CuencaGraphical abstractBiosketch for Professor Pascual Royo. (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - March 22, 2019 Category: Chemistry Source Type: research

Solid state structure and photophysical properties of monoanionic 2-(2′-hydroxyphenyl)benzimidazole as an anionic core in rhenium complex
Publication date: Available online 20 March 2019Source: Journal of Organometallic ChemistryAuthor(s): Mamina Bhol, Maruthupandiyan Priyatharsini, Rajaputi Venkatraman Krishnakumar, Malaichamy SathiyendiranAbstractA monoanionic 2-(2′-phenolate)benzimidazole (HPBI−) stabilized in organometallic complex [Re(CO)2 (dppe)2](HPBI) (1) which was obtained by treating 2-(2′-hydroxyphenyl)benzimidazole (H2–PBI), 1,2-bis(diphenylphosphino)ethane (dppe), and Re2(CO)10, in toluene using a one-pot approach. Solid state structure of complex was determined using a single crystal X-ray diffraction analysis. The monoa...
Source: Journal of Organometallic Chemistry - March 22, 2019 Category: Chemistry Source Type: research

Domino [Pd]-Catalysis: Heck followed by decarboxylative Sonagashira couplings under microwave irradiation in aqueous medium
Publication date: Available online 21 March 2019Source: Journal of Organometallic ChemistryAuthor(s): Karu Ramesh, Gedu SatyanarayanaAbstractA copper free [Pd]-catalyzed domino intramolecular Heck and intermolecular decarboxylative Sonogashira couplings, for the synthesis of alkyne bearing heterocyclic compounds with a quaternary carbon atom, is described. Notably, this dual bond forming strategy is successful in water solvent, under microwave irradiation. This one-pot operation enabled the formation of a variety of dihydrobenzofurans, indolines and oxindoles, in very good to near quantitative yields. Notably, unlike earli...
Source: Journal of Organometallic Chemistry - March 22, 2019 Category: Chemistry Source Type: research

Revisiting the mechanism of acetylenic amine N-Oxide rearrangement catalysed by Gold(I) complexes from a DFT perspective
In this study, we used density functional theory (DFT) to reinvestigate the mechanism proposed by Houk and Zhang et al. (J. Am. Chem. Soc. 2012, 134, 1078) for piperidinone formation through rearrangement of an acetylenic amine N-oxide catalysed by phosphine gold(I) complexes. For this rearrangement, the C-C coupling was proposed to be the rate-determining step with activation energy as high as 35.8 kcal/mol. Such a barrier seems inconsistent with the fact that the actual reaction proceeds under very mild conditions (0 °C, 1 h, in CH2Cl2). In the original report, it was proposed that the C-C coupling takes place ...
Source: Journal of Organometallic Chemistry - March 22, 2019 Category: Chemistry Source Type: research

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