X-ray Crystal Structures of Two (Ethylidyne)tricobalt Clusters: Thermolysis of Cp*Co(H2C=CH2)2 Produces Cp*3Co3(μ3-CCH3)(μ3-H), Not Cp*3Co3(μ3-CCH3)2


Journal Article

The structures of the μ3-ethylidyne tricobalt clusters Cp*3CO3(μ3-CCH3)2 (2) and Cp*3Co3(μ3-CCH3)(μ3-H) (3) were determined by X-ray crystallography. The 48-electron cluster 2 consists of an equilateral triangle of cobalt atoms (Co‒Co = 2.437(1) Å) symmetrically capped on each face by a μ3-CCH3 ligand. Cluster 3 was necessarily disordered by the crystallographic site symmetry (3/m) and was therefore refined by employing a mirror-disordered model (3a) which assigned half-weight to the disordered μ3-CCH3 ligand. The 46-electron cluster 3a consists of an equilateral triangle of cobalt atoms (Co‒Co = 2.378(1) Å) symmetrically capped on a single face by a μ3-CCH3 ligand. © 1994, American Chemical Society. All rights reserved.

Full Text

Duke Authors

Cited Authors

  • Casey, CP; Widenhoefer, RA; Hallenbeck, SL; Hayashi, RK; Powell, DR; Smith, GW

Published Date

  • April 1, 1994

Published In

Volume / Issue

  • 13 / 4

Start / End Page

  • 1521 - 1524

Electronic International Standard Serial Number (EISSN)

  • 1520-6041

International Standard Serial Number (ISSN)

  • 0276-7333

Digital Object Identifier (DOI)

  • 10.1021/om00016a065

Citation Source

  • Scopus