New bimetallics of Mo and W with metallocene, metal carbonyl and bridging PPh2 or 'Cp'PPh2 units

Authors
Comte, V Blacque, O Moise, C Kubicki, MM
Citation
V. Comte et al., New bimetallics of Mo and W with metallocene, metal carbonyl and bridging PPh2 or 'Cp'PPh2 units, PHOSPHOR SU, 146, 1999, pp. 721-724
Citations number
6
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS
ISSN journal
10426507 → ACNP
Volume
146
Year of publication
1999
Pages
721 - 724
Database
ISI
SICI code
1042-6507(1999)146:<721:NBOMAW>2.0.ZU;2-0
Abstract
Ring substituted (R=Bu-t, SiMe3) metallocene dichlorides undergo a nucleoph ilic substitution on one of the two rings upon the action of LiPPh2M'(CO)(x ) salts with the formation of chloro-hydrido complexes [C5H3(R)PPh2M'(CO)(x )](C5H4R)M(H)Cl. Their UV irradiation leads to the chloro-bridged M(mu-Cl)M ' separable diastereoisomers. Use of the ansa-metallocene dichlorides [Me2X (C5H4)(2)MCl2] (X=Si or C) allowed the access to the new bridging system [M (mu-PPh2, mu-Cl)M'] (M=Mo, W; M'=W).