Synthesis and structure of [Fe(eta(5)-C9Me6)(eta(5)-C5H4)SiMe2]: A mixed-ring [1]ferrocenophane

Authors
Tudor, J Barlow, S Payne, BR O'Hare, D Nguyen, P Evans, CEB Manners, I
Citation
J. Tudor et al., Synthesis and structure of [Fe(eta(5)-C9Me6)(eta(5)-C5H4)SiMe2]: A mixed-ring [1]ferrocenophane, ORGANOMETAL, 18(11), 1999, pp. 2281-2284
Citations number
37
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
ORGANOMETALLICS
ISSN journal
02767333 → ACNP
Volume
18
Issue
11
Year of publication
1999
Pages
2281 - 2284
Database
ISI
SICI code
0276-7333(19990524)18:11<2281:SASO[A>2.0.ZU;2-0
Abstract
A new bridged ligand incorporating the hexamethylindenyl moiety has been sy nthesized and used to prepare the corresponding ansa ferrocene, [Fe(eta(5)- C9Me6)(eta(5)-C5H4)SiMe2], 10, which is the first mixed-ring [1]ferrocenoph ane to be structurally characterized. Comparison of the crystal structure o f 10 with those of [Fe (eta(5)-C5H4)(2)SiMe2], 1, and rac-[Fe(eta(5)-C9Me6) (2)SiMe2], 5a, shows many structural features, such as the ring tilt of 17 degrees, to be intermediate between those of the two model compounds, while the average Si-C(ipso) bond length is much closer to that in 5a.