Published in

American Chemical Society, Organometallics, 10(11), p. 3353-3361, 1992

DOI: 10.1021/om00046a039

Links

Tools

Export citation

Search in Google Scholar

Synthesis and Electronic and Molecular-Structures of Eta-Cycloheptatrienyl Eta-Cyclopentadienyl Derivatives of Vanadium, Niobium, and Tantalum - Photoelectron Spectroscopic, Electrochemical, and X-Ray Crystallographic Study

Journal article published in 1992 by Jennifer C. Green, Malcolm L. H. Green, Nikolas Kaltsoyannis ORCID, Philip Mountford, Peter Scott, Stephen J. Simpson
This paper is available in a repository.
This paper is available in a repository.

Full text: Download

Green circle
Preprint: archiving allowed
  • Must obtain written permission from Editor
  • Must not violate ACS ethical Guidelines
Upload
Orange circle
Postprint: archiving restricted
  • Must obtain written permission from Editor
  • Must not violate ACS ethical Guidelines
Upload
Red circle
Published version: archiving forbidden
Policy details
Data provided by SHERPA/RoMEO

Abstract

The new compounds [Ta(η-CâHâ)(η-CâHâMe)] (3), [Nb(η-CâHâ)(η-CâHâR)(thf)][PFâ] (R = H (4), Me (4a)), [Nb(η-CâHâ)(ηCâHâMe)(PMeâ)][PFâ] (5), [Nb(η-CâHâ)(η-CâHâMe)(CO)][PFâ] (6), [K(18-crown-6)][Nb-(η-CâHâ)(η-CâHâ)] (7), and [NB(η-CâHâ)(η-CâHâMe)Me] (8) have been prepared, and an improved route to [Nb(η-CâHâ)(η-CâHâR)] (R = H (2), Me (2a)) is reported. The X-ray crystal structures of 4a and 7 have been determined. The HeI and He II photoelectron spectra of [M(η-CâHâ)(η-CâHâ)] (M = V, Nb) and 3 have been obtained and the bonding is discussed. It is considered that (η-CâHâ)-M bonding requires a contribution of three valence electrons from the metal. 43 refs., 10 figs., 6 tabs.