The influence of nitrosyl and allyl ligands on the formation of metal-metal bonds in bimetallic complexes containing S2CPCy3 bridges

Citation
D. Miguel et al., The influence of nitrosyl and allyl ligands on the formation of metal-metal bonds in bimetallic complexes containing S2CPCy3 bridges, INORG CHIM, 307(1-2), 2000, pp. 20-25
Citations number
34
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
INORGANICA CHIMICA ACTA
ISSN journal
0020-1693 → ACNP
Volume
307
Issue
1-2
Year of publication
2000
Pages
20 - 25
Database
ISI
SICI code
0020-1693(20000911)307:1-2<20:TIONAA>2.0.ZU;2-N
Abstract
The reactions of the anion [X(CO)(2)Mo(mu-S2CPCy3)Mo(CO)(3)](-) (X = NO, et a(3)-C3H5) with Ph2PCl afforded the products [(ON)(CO)(2)Mo(mu-PPh2)(mu-S2C PCy3)Mo(CO)(3)] (3) and [(eta(3)-C3H5)(CO)Mo(mu-PPh2)(mu-S2CPCy3)Mo(CO)(3)] (4), respectively. The chemical shifts of the resulting mu-PPh2 ligands in the P-31{H-1} NMR spectra indicate that the two molybdenum atoms are not b onded in 3, but are directly bonded in 4. The selenido-bridged binuclear co mplexes [X(CO)(2)Mo(mu-SePh)(mu-S2CPCy3)M(CO)(3)] (X = NO, M = Mo, 5a; M = W, 5b; X = eta(3)-C3H5, M = Mo, 6a; M = W, 6b) were synthesized by the reac tions of the corresponding anions [X(CO)(2)Mo(mu-S2CPCy3)MCO)(3)](-) with P hSeI. The influence of the nitrosyl and allyl ligands on the formation of m etal-metal and metal-carbon bonds in bimetallic complexes containing both S 2CPCy3 and PPh2 bridges is discussed. (C) 2000 Elsevier Science S.A. All ri ghts reserved.