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Showing papers by "Jacques E. Guerchais published in 1983"

Journal Article•DOI•
Réactions d'insertion du cyanoacétylène et du dicyanoacétylène dans les deux liaisons métalhydrogène des dihydrures [(C5H5)2MH2] (M Mo ou W)

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Henri Scordia1, Rene Kergoat1, M.M. Kubicki1, Jacques E. Guerchais1•
University of Western Brittany1
28 Jun 1983-Journal of Organometallic Chemistry
TL;DR: In this article, the insertion of alkynes with low steric hindrance, and dicyanoacetylene (NCCCCN) into both MH of [(C 5 H 5 ) 2 MH 2 ] bonds are described.

23 citations

Journal Article•DOI•
Transition-metal-cyanocarbon chemistry. 2. Cyanoacetylenes insertions into the metal-hydrogen bond of (.eta.5-C5H5)(CO)3MH (M = Mo, W) complexes. Formation of phosphorus ylide complexes and the structure of (.eta.5-C5H5)(CO)2Mo[.eta.2-C(CN)PPh3CHCN]

[...]

Henri Scordia, Rene Kergoat, Marek M. Kubicki, Jacques E. Guerchais, Paul L'Haridon 
01 Nov 1983-Organometallics

20 citations

Journal Article•DOI•
Niobium organometallic chemistry: XI. Diels-Alder reaction of a η1-cyclopentadienyl group. Crystal structure of a niobium derivative containing a η1-substituted norbornadienyl unit

[...]

R. Mercier, Jacques Douglade, Jacques Amaudrut, Jean Sala-Pala, Jacques E. Guerchais 
08 Mar 1983-Journal of Organometallic Chemistry
TL;DR: In this paper, the structure of diamagnetic niobium derivatives has been determined by single-crystal X-ray diffraction Crystal data are space group P21/n, a 7983(2) A, b 27600(7) A.

13 citations

Journal Article•DOI•
Reactions of bimetallic group VI complexes

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J.-L. Le Quere1, François Y. Pétillon1, Jacques E. Guerchais1, Lj. Manojlović-Muir2, Kenneth W. Muir2, David W. A. Sharp2 •
University of Western Brittany1, University of Glasgow2
21 Jun 1983-Journal of Organometallic Chemistry
TL;DR: In this article, Triphenylphosphine and trimethylphosphite react with triphenyl phosphine to give [(C5H5)(OC)2)LM(μ-SMe)M′(CO)5] which on heating revert to II.

11 citations

Journal Article•DOI•
Chimie organometallique du niobium

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Jean Sala-Pala1, Jean-Louis Migot1, Jacques E. Guerchais1, Luc Le Gall1, François Grosjean1 •
University of Western Brittany1
14 Jun 1983-Journal of Organometallic Chemistry
TL;DR: In this paper, the spin Hamiltonian parameters of paramagnetic niobium complexes are compared with the atomic orbital coefficients in the ground state molecular orbital involved in bonding, showing that the unpaired electron lies essentially in the 4dx2−y2 metal ion orbital mixed with a small amount of the corresponding metal ion 4dz2 orbital, the z axis coinciding with the C2 axis of the compound.

9 citations