Synthesis, dynamic behavior, and X-ray crystal structure of [Li(tmed)](3)[WH(C2H4)(4)]

Authors
Shelby, QD Girolami, GS
Citation
Qd. Shelby et Gs. Girolami, Synthesis, dynamic behavior, and X-ray crystal structure of [Li(tmed)](3)[WH(C2H4)(4)], ORGANOMETAL, 18(12), 1999, pp. 2297-2299
Citations number
35
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
ORGANOMETALLICS
ISSN journal
02767333 → ACNP
Volume
18
Issue
12
Year of publication
1999
Pages
2297 - 2299
Database
ISI
SICI code
0276-7333(19990607)18:12<2297:SDBAXC>2.0.ZU;2-Q
Abstract
Alkylation of W(OMe)(3)Cl-3 with ethyllithium and N,N,N',N'-tetramethylethy lenediamine (tmed) affords the tungsten ethene/hydride complex: [Li(tmed)]( 3)-[WH(C2H4)(4)]. The anion possesses an approximate trigonal bipyramidal g eometry with the hydride in an equatorial site. The ethene ligands exchange with one another, presumably by means of a Berry pseudorotation process, b ut exchange of ethene and hydride hydrogen atoms is slow on the NMR time sc ale.