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Showing papers in "Organometallics in 1991"




Journal ArticleDOI
TL;DR: In this paper, the thorium alkyl Cp' 2 Th(CH 3 ) 2 + B(C 6 F 5 ) 4 − − anion was characterized.

207 citations


Journal ArticleDOI
TL;DR: In this article, the synthesis of three new incompletely condensed polyhedral oligosilsesquioxanes is reported. But the synthesis is not suitable for polyhedral polysilicon solids.

200 citations





Journal ArticleDOI
TL;DR: In this paper, the internal metalation reaction that forms 2 is accompanied by metalation of the solvent to form (C 5 Me 5 ) 2 Sm(μ-H)(μ-η 1 :η 5 -CH 2 C 5 Me 4 )Sm(C 5 ME 5 ) (2) and H 2.

165 citations


Journal ArticleDOI
TL;DR: In this article, a series of salts of the form (E)-(η-C 5 H 5 )Fe( η-Fe(C 5H 4 ) + X − has been synthesized with second-harmonic generation powder efficiencies at 1907-nm fundamental as large as 220 times that of a urea reference standard.

162 citations




Journal ArticleDOI
TL;DR: In this paper, the chiral ligands 1-(tert-butoxycarbonyl)-(2S, 4S)-2-[(diphenylphosphino)methyl]-4-(dibenzophospholyl)pyrrolidine, (1.

Journal ArticleDOI
TL;DR: Synthese de bis [2,4,6,tris (trifluoromethyl) phenyl] stannylene a partir de [2.4, 6, tris(triflooromethsyl)-phenyl] lithium et de chlorure d'etain II as discussed by the authors.

Journal ArticleDOI
TL;DR: In this paper, the authors show that lanthanide and group 3 carbyls are active precursors for the oligomerization of terminal alyknes HC = CR (R = alkyl, aryl, SiMe3).


Journal ArticleDOI
TL;DR: In this article, an X-ray structure of the chloro compound is described and the one-electron oxidation of complexes 1-5 to synthesize the iron (III) species [Fe(Cp*)(dppe)-X]PF 6, ESR, Mossbauer, and NMR spectroscopic data for these open-shell compounds magnetic properties, MO study

Journal ArticleDOI
TL;DR: In this paper, a Mo VI oxo complex Cp*MoO 2 Cl (5) was found to act as a catalyst of the reaction of alkyl hydroperoxides and olefins.



Journal ArticleDOI
TL;DR: Treatment of (EBTHI)MCl 2 [M=Zr, 1; M=Hf, 2; EBTHI=ethylene-1,2-bis(η 5 -4,5,6,7-tetrahydro-1-indenyl)] with 2 equiv of NaEt 3 BH in C 6 H 6 produces the hydride dimers.

Journal ArticleDOI
TL;DR: In this article, the catalytic activity of these systems is very high and they are used as the catalyst precursors in the presence of SnCl 2 for the enantioselective hydroformylation of some olefinic substrates.

Journal ArticleDOI
TL;DR: In this article, an equilibrium mixture of syn and anti-rotamers of the alkylidene ligand is observed with time, and the anti rotamer is the final product.

Journal ArticleDOI
TL;DR: In this article, the catalytic dehydrogenative coupling of secondary silanes has been achieved with the combination of Cp 2 ZrCl 2 and 2 equiv of nBuLi in toluene at 90°C.

Journal ArticleDOI
TL;DR: In this paper, the reaction of hydrosilanes with 1-hexyne catalyzed by Co 2 Rh 2 (CO) 12 and Rh 4 (CO), at 25 o C and atmospheric pressure-150 psi of carbon monoxide, gave (Z)-1-silyl-2-formyl-1-hexenes, which are the products of silylformylation.

Journal ArticleDOI
TL;DR: Preparation on η 5 -pentamethylcyclopentadienyl (Cp*) hydride complexes of iridium containing alkoxide and amide ligands, their reactivity, and mechanistic studies of their reductive elimination and insertion reactions as discussed by the authors.

Journal ArticleDOI
TL;DR: The first stable diaryllead (II) compound, [2,4,6-(CF 3 ) 3 C 6 H 2 ] 2 Pb (4), was reported in this article.

Journal ArticleDOI
TL;DR: In this paper, the Uranium-metal bond disruption enthalpies were determined in the series of complexes Cp3U-MPh3, where Cp = eta-5-C5H5, Ph = C6H5 and M = Si, Ge, Sn, where M' = Fe, Ru.

Journal ArticleDOI
TL;DR: Rhodium-trimethylphosphine species have been found to catalyze the insertion of alkyne triple bonds into phenyl H and alkynyl H bonds as discussed by the authors.

Journal ArticleDOI
TL;DR: In this paper, the authors exclude the importance of metal-centered redox processes in the catalytic cycle and support instead ''four-center'' ''heterolytic'' bond-scission/bond-forming sequences.

Journal ArticleDOI
TL;DR: Protonation of the complex [Pt(C 2 H 5 ) 2 (P-P)] of a series of cations characterized as either ethene-hydride or agostic ethyl complexes was studied in this article.