Showing papers in "Organometallics in 2013"

TL;DR: In this article, a new method for the assessment of the π-acceptor strength of N-heterocyclic carbenes is presented, where the 77Se chemical shifts of the easily available selenium carbene adducts 1·Se −7·Se correlate with the δ(77Se) character of the respective carsbenes.

TL;DR: A review of synthetic iron compounds from the literature, in particular ferrocene and derivatives, which are potential new anticancer agents can be found in this paper, where a vast range of reported compounds, herein classified into three categories, according to their chemical nature and supramolecular organization.

TL;DR: A review of σ-bond metathesis is presented using Watson's 1983 observation of degenerative methyl ligand exchange at metallocene compounds as a starting point in this paper.

TL;DR: In this article, the synthesis of 1,2-and 1,3-substituted ferrocenes by electrophilic aromatic substitution, ortho-directed metalation, kinetic resolution, and desymmetrization is discussed.

TL;DR: Reversible, heterolytic addition of H2 across an Iron-boron bond in a ferraboratrane with formal hydride transfer to the boron gives iron-borohydrido-hydride complexes that catalyze the hydrogenation of alkenes and alkynes to the respective alkanes.

TL;DR: Nickel(II) α-diimine dibromide complexes incorporating 8-p-tolylnaphthylimino groups have been prepared and used for ethylene polymerization by activation with modified methylalumoxane (MMAO).

TL;DR: In this paper, the electro- and spectroelectrochemical behavior of diverse (multi)ferrocenyl five-membered heterocyclic compounds, including furan, thiophene, pyrroles, phospholes, etc. is discussed, giving a close insight into the electron transfer processes of these organometallic compounds in their mixed-valence state.

TL;DR: A new N-heterocyclic ligand IPr*OMe [N,N′-bis(2,6-bis (diphenylmethyl)-4-methoxyphenyl)imidazol-2-ylidene] has been synthesized and compared with its earlier methyl-substituted congener IPr*, which was successfully bound to palladium, and the catalytic activity was investigated in Buchwald-Hartwig arylamination as mentioned in this paper.

TL;DR: In this article, a copper/N-heterocyclic carbene catalyzed hydroboration of carbon dioxide has been developed to give a formic acid derivative selectively under mild conditions.

TL;DR: In this article, a half-sandwich, piano-stool type of coordination around the metal centers and a delocalized situation within the triazolylidene rings were characterized.

TL;DR: In this paper, a series of dialkylaluminum and indium {ONR}MR′2 complexes with variable R-imino substituents and functionalized by a bulky o-SiPh3 in the phenoxy moiety, was prepared and structurally characterized in solution and in the solid state.

TL;DR: The ubiquity of the cyclopentadienyl ligand permits us to use its complexes as representative examples for the description of recent highlights in organometallic and more generally in coordination chemistry of the actinides as discussed by the authors.

TL;DR: In this paper, a new alkenyl-gold(I) complex was successfully identified from a stoichiometric reaction of Au(OH)(IPr) and 1-methylamino-2-butyne in THF.

TL;DR: In this article, the synthesis and characterization of a series of Ni, Co, and Fe complexes bearing a tridentate bisphosphino silyl ligand (κ3-(2-Ph2PC6H4)2SiMeH, [PSiP]-H, 1) are reported.

TL;DR: The bmpi (1,3-bis(6′-methyl-2′-pyridylimino)isoindoline) pincer Ru(II) hydride complex catalyzes base-free, acceptorless, and chemoselective dehydrogenation of alcohols with liberation of dihydrogen under moderate (<120 °C) conditions.

TL;DR: The M06-L/TZVP/tZVPFit method was tested on representative transformations of organometallic chemistry comprising ligand elimination/displacement, addition and oxidative addition, cleavage of a chl... as mentioned in this paper.

TL;DR: In this article, the ambiphilic species Al(C6H4(o-PPh2))3 (2) was synthesized and fully characterized, notably using X-ray diffraction.

TL;DR: In this article, the synthesis and structural characterization of three-coordinate iron and cobalt complexes supported by new N-phosphinoamidinate ligands is reported, along with the successful application of these complexes as precatalysts for the challenging room-temperature hydrosilylation of carbonyl compounds to afford alcohols upon workup.

TL;DR: In this paper, the synthesis, characterization, and biological evaluation of novel Ru(II)- and Au(I)-N-heterocyclic carbenes is reported, and the ligand exchange on the NHC-gold(I) chlorides was achieved by either reacting the complexes with silver acetate to yield the N HC-gold-I) acetates (NHC-Au(I)/OAc) 10−12 or reacting the NOC-gold (I)/Cl chloride complexes (NOC-A/Cl) under basic conditions with 2′

TL;DR: In this paper, the changes in surface wettability induced by immobilized polyvinylferrocene (PVFc) and poly(2-(methacryloyloxy)ethyl ferrocenecarboxylate) (PFcMA) on silica wafers were studied after oxidation with two different oxidation reagents.

TL;DR: The structural divergence of group XII metals toward NHCs and their interesting intramolecular interactions was discussed in this paper. But the structural divergence was not discussed in this paper.

TL;DR: In this paper, the reaction of CO2 with Et3SiH catalyzed by the nickel complex [(dippe)Ni(μ-H)]2 (1) afforded the reduction products Et 3SiOCH2OSiEt3 (12%), Et 3 SiOCH3 (3%), and CO, which were characterized by standard spectroscopic methods.

TL;DR: In this article, the synthesis of a series of digold hydroxide complexes is reported, which are highly active in water-inclusive organic transformations, such as the alkyne and nitrile hydration reactions, and the Meyer-Schuster rearrangement.

TL;DR: In this paper, Al and Ga coordination compounds 4, 5, 7, 7 and 8 of the type (NON)AlX were synthesized via a methane elimination reaction between the corresponding protio ligands (nON)H2 and MMe3 precursors (M = Al, Ga).

TL;DR: In this paper, an iron Fe(NHC)(CO)4 complex was formed by direct reaction of Fe3(CO)12 with equimolecular amounts of NHC imidazolium halide precursors; addition of base was not needed in this reaction.

TL;DR: In this paper, the reaction of triphenylmethylium tetrakis(pentafluorophenyl)borate with triethylsilane affords triethylsilylium(triethylsane) tetrakaris(pentaplastic)borates, [(Et3Si)2(μ-H)][B(C6F5)4] (1).

TL;DR: In this article, N-heterocyclic carbene (NHC) based ruthenium complexes were studied as catalysts for the transfer hydrogenation of ketones.

TL;DR: In this paper, the metal-free hydrogenation of substituted pyridines, quinolines, and several other N-heterocycles is achieved upon treatment of the nitrogen-based Lewis base with an equivalent of the Lewis acid B(C6F5)3 and H2 (4 atm) at 115 °C, to afford the ammonium-[HB(C 6F5]3] salts of the reduced N-heocycles.

TL;DR: In this paper, the synthesis, photophysical characterization, and electrochemistry of three series of cyclometalated binuclear platinum(II) complexes, each bridged by two 3,5-disubstituted pyrazolate ligands (μ-R2pz), were presented.