Synthesis, structure, and reactivity of germyl(germylene)tungsten complexes

Authors
Ueno, K Yamaguchi, K Ogino, H
Citation
K. Ueno et al., Synthesis, structure, and reactivity of germyl(germylene)tungsten complexes, ORGANOMETAL, 18(22), 1999, pp. 4468-4470
Citations number
17
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
ORGANOMETALLICS
ISSN journal
02767333 → ACNP
Volume
18
Issue
22
Year of publication
1999
Pages
4468 - 4470
Database
ISI
SICI code
0276-7333(19991025)18:22<4468:SSAROG>2.0.ZU;2-M
Abstract
Photolysis of a C6D6 solution of Cp'W(CO)(3)-GeMe2GeMe3 (1a, Cp' = Cp*, Cp* = eta(5)-C5Me5; 1b, Cp' = Cp-Et, Cp-Et = eta(5)-C5Me4Et) afforded a germyl (germylene)tungsten complex, Cp'W(CO)(2)(=GeMe2)(GeMe3) (2a, Cp' = Cp*; 2b, Cp' = Cp-Et), quantitatively. Crystal structure analysis of 2b revealed a significantly short tungsten-germylene bond (2.4590(16) Angstrom) compared to the tungsten-germyl bond (2.667(3) Angstrom) and planar geometry around the germanium atom of the germylene ligand (sum of the valence angles 357.8 degrees), indicating sp(2) hybridization of the germanium atom.