Showing papers in "Journal of Organometallic Chemistry in 2005"

TL;DR: In this article, a quantification of steric effects on the bond dissociation energy of various N-heterocyclic ligands from transition metals in complexes as Cp*Ru(NHC)Cl and Ni(CO)3-NHC was presented.

TL;DR: In this article, N -heterocyclic carbenes are compared with cyclopentadienyls and phosphines in terms of bonding and reactivity, and the strengths and weaknesses of current synthetic approaches, such as Lin's Ag 2 O transmetallation route, are discussed.

TL;DR: In this article, the authors present the recent development in the synthesis of cyclic carbonate from carbon dioxide (CO2) using ionic liquids as catalyst and/or reaction medium.

TL;DR: In this paper, the physical, chemical, and optical properties of tetraalkylphosphonium-ionic liquids having anions with a wide range of masses were measured and reported.

TL;DR: Ionic liquids and ionic liquid crystals of imidazolium salts composed of various transition and main group metals have been reviewed in this article, where they have been realized as potential solvents, catalysts, catalyst precursors and reagents for many organic transformations and provide ecofriendly protocols.

TL;DR: In this article, the development of the range of Cytec extractants and their application for the separation of cobalt from nickel is described. But it was not until the dialkyl phosphinic acid reagent, CYANEX 272, and its dithio analogue, CyANEX 301, became available that liquors containing very low Co:Ni ratios of at least 1:40 to even > 1:100 could be treated.

TL;DR: In this article, the authors summarize recent theoretical studies of Fischer and Schrock-type carbene complexes and show that with the help of charge and energy partitioning techniques, it is possible to build a bridge between heuristic bonding models and the physical mechanism which leads to a chemical bond.

TL;DR: In this article, the synthesis and characterisation of a series of neutral Au(I) N-heterocyclic carbene complexes (NHC)AuX] (X = Cl and 2′, 3′, 4′, 6′-tetra-O-acetyl-β-d -glucopyranosyl-1-thiolato) are reported.

TL;DR: The work in this article summarizes the research conducted in our laboratory over the past five years, with a focus on the reactions of hypophosphorous acid derivatives, including room-temperature radical addition and palladium-catalyzed addition.

TL;DR: In this paper, a new family of chiral alkoxy-N-heterocyclic carbene (NHC) ligands was designed for the enantioselective copper-catalyzed conjugate addition of dialkylzincs to enones.

TL;DR: A short review of cyclopentadienyl-free rare earth metal catalysts for the diastereoselective and enanti-lective hydroamination of aminoalkenes can be found in this article.

TL;DR: In this article, the synthesis, structural characterizations and reactivity patterns of main group and late transition metal carbene complexes of the bis(phosphoranimino)methandiide, [C(Ph 2 P NSiMe 3 ) 2 ] 2−, and the carbodiphosphorane, Ph 3 P C PPh 3, are described and compared to previously reviewed early transition metal analogues.

TL;DR: A series of zinc complexes of monodentate N-heterocyclic carbenes and a new sterically bulky bidentate pyridyl-NHC ligand have been synthesized and characterized by spectroscopic and X-ray crystallographic methods as mentioned in this paper.

TL;DR: A series of nickel (II) complexes (L)NiCl2 (7, 8, 10, 11 and 12) were characterized by IR spectroscopy and elemental analysis as mentioned in this paper.

TL;DR: In this paper, the Titanocene 3a was reacted with an ethereal solution of HCl, by which its dihydrochloride derivative (3c) was formed and isolated.

TL;DR: In this paper, the authors report on the syntheses, structures and olefin polymerization behavior of bis(pyrrolide-imine) Ti complexes having a pair of chelating pyrrolidesimine [N −,N] ligands and demonstrate that PI Catalysts, when activated, provide a metal alkyl in the cis position to a vacant coordination site for monomer binding.

TL;DR: A series of bridged bis(pyridinylimino) ligands were efficiently synthesized through the condensation reaction of 4,4′-methylene-bis(2,6-disubstituted aniline) with 2-pyridinecarboxaldehyde or 2-benzoylpyridine as discussed by the authors.

TL;DR: In this paper, the trans-geometry of the square planar Pd(II) complex has been analyzed using single-crystal diffraction analysis and 13C NMR spectroscopy, and it has been shown that cis-1 and trans-2 are highly efficient in the Mizoroki-Heck coupling reaction of aryl bromides and activated aryls chlorides both in DMF and [n-C4H9)4]Br as ionic liquid.

TL;DR: In this paper, the main redox potential parameterization approaches and their extensions are reviewed with the methods to estimate the corresponding electrochemical ligand and metal center parameters and the dependence of such parameters on the electronic properties of various groups and their transmission along the carbon skeleton of those ligands are illustrated.

TL;DR: A gold(III)-catalyzed catalyzed hydroarylation of different olefins is reported in this paper, which tolerates different functional groups such as aldehyde, carboxylic acid, nitrile and is highly efficient.

TL;DR: A brief review of carbenemetal complexes can be found in this paper, where the main emphasis is on saturated heterocyclic bis(amino) carbene ligands, referred to here as electron-rich olefin- or ERO-derived ligands.

TL;DR: Two families of catalysts containing trispyrazolylborate (Tpx) or N-heterocyclic carbenes (NHC) with the group 11 metals have proven useful for several reactions involving the transfer of the :CHCO2Et group from ethyl diazoacetate to saturated and unsaturated substrates as mentioned in this paper.

TL;DR: In this article, a new strategy to regulate multicomponent assembly from two kinds of pyridine-based ligands and cis-protected Pd(II) ions is described.

TL;DR: The ability of heteroatom stabilized Fischer carbene complexes (FCCs) to participate in multicomponent reactions, which has allowed the construction of a large variety of highly functionalized structures through several patterns of reactivity, will be disclosed along the following lines.

TL;DR: The monocationic chloro complexes containing chelating 1,10-phenanthroline (phen) ligands have been prepared and characterised as the chloride salts in this paper.

TL;DR: In this paper, a bis(β-diketiminato) ligand was synthesized for copolymerization of cyclohexene oxide with CO2.

TL;DR: In this paper, the behavior of chemically or electrochemically generated ferrocenium cations has been studied in some polar organic solvents (DMF, DMSO, acetonitrile, acetone, methylene chloride) under molecular oxygen.

TL;DR: The pyridine functionalised N -heterocyclic carbene complexes [M(κ 2 -NC DIPP )(COD)] + A −, NC DIPP = 3 - ( 2, 6 - Pr 2 i C 6 H 3 ) - 1 - [ 2 - ( 3 - picolyl ) ] - imidazol - 2 - ylidene, A - = [ Ar 4 F B ] -, [{3,5-(CF 3 ) 2 C 6H 2 } 4 B] −, M ǫ= �

TL;DR: In this paper, the synthesis and structural characterization of a series of platinum complexes with N-heterocyclic carbenes and divinyltetramethylsiloxane (dvtms) as supporting ligands are described.

TL;DR: In this article, a general solution to the preparation of pincer complexes that require the formation of two N-heterocyclic carbenes and the activation of an aryl C-H bond is reported.