SYNTHESIS AND MOLECULAR-STRUCTURE OF 2 ZIRCONOCENE COMPLEXES OF CYCLOOCTATRIENYNE

Authors
YIN JG KLOSIN J ABBOUD KA JONES WM
Citation
Jg. Yin et al., SYNTHESIS AND MOLECULAR-STRUCTURE OF 2 ZIRCONOCENE COMPLEXES OF CYCLOOCTATRIENYNE, Tetrahedron letters, 36(18), 1995, pp. 3107-3110
Citations number
11
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Tetrahedron letters → ACNP
ISSN journal
00404039
Volume
36
Issue
18
Year of publication
1995
Pages
3107 - 3110
Database
ISI
SICI code
0040-4039(1995)36:18<3107:SAMO2Z>2.0.ZU;2-V
Abstract
Two zirconocene complexes of cyclooctatrienyne have been prepared by P -hydrogen elimination from zirconocene biscyclooctatetraenyl. Both com plexes are fluxional by a ring inversion process with activation barri ers in the range typical of cyclooctatetraenes. An X-ray crystal struc ture of 3a reveals a boat conformation of cyclooctatrienyne ring with no significant flattening when compared with cyclooctatetraene.