X-ray crystal structures of two (ethylidyne)tricobalt clusters. Thermolysis of Cp*Co(H2 C=CH2 )2 Produces Cp*3 Co33 CCH33 -H), not Cp*3 Co33 -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) A) 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) A) symmetrically capped on a single face by a μ3-CCH3 ligand.

Duke Authors

Cited Authors

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

Published Date

  • 1994

Published In

  • Organometallics

Volume / Issue

  • 13 / 4

Start / End Page

  • 1521 - 1524