Contrasting nonclassical silicon-hydrogen interactions in niobium and tantalum half-sandwich complexes: Si-H center dot center dot center dot M agostic versus M-H center dot center dot center dot Si-Cl interligand hypervalent interactions

Authors
Nikonov, GI Mountford, P Green, JC Cooke, PA Leech, MA Blake, AJ Howard, JAK Lemenovskii, DA
Citation
Gi. Nikonov et al., Contrasting nonclassical silicon-hydrogen interactions in niobium and tantalum half-sandwich complexes: Si-H center dot center dot center dot M agostic versus M-H center dot center dot center dot Si-Cl interligand hypervalent interactions, EUR J INORG, (9), 2000, pp. 1917-1921
Citations number
36
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
ISSN journal
14341948 → ACNP
Issue
9
Year of publication
2000
Pages
1917 - 1921
Database
ISI
SICI code
1434-1948(200009):9<1917:CNSIIN>2.0.ZU;2-6
Abstract
Reaction of [CpM(NAr)(PMe3)(2)] (M = Nb, Ta; Ar = 2,6-C(6)H(3)iPr(2)) With HSiClMe2 gives two remarkably different nonclassical Si...H...M products de pending only on the identity of M; [CpTa(NAr)(H)(SiMe2Cl)(PMe3)] possesses an unusual electron-rich M-H Si interligand hypervalent interaction while [ CpNb{eta(3)-N(Ar)SiMe2-H}Cl(PMe3)] is the first example of a beta-agostic s ilylamine Si-H...M interaction showing a "stretched" Si-H bond.