Abstract
The cluster Co3(CO)3(μ-CO)(μ-TePh)5 (1) is obtained by reacting an excess of diphenyltellurium and cobalt carbonyl (Te : Co = 3 : 1) or Co2(CO)6(μ-Ph2C2). An excess of cobalt carbonyl (Co : Te = 2 : 1) results in the formation of Co4(CO)10(μ-CO)(μ4-Te)2 (2). The structure of clusters 1 and 2 is determined from X-ray crystal structure analysis. Compound 1 has the Co3 triangular cycle (the Co-Co distances are 2.664(5), 2.674(5), and 2.544(5) Å) in which the shortest bond is completed by two CO and TePh bridges, while each of the two longer bonds has two TePh bridges (Co-Te distances range within 2.516(4)-2.618(4) Å). In addition, each Co atom is connected with one terminal carbonyl group. It is assumed that the driving force for rupture of Te-Te and Te-C bonds upon formation of compounds 1 and 2, respectively, is the removal of the electron deficiency at the cobalt atoms, caused by decarbonylation.
Original language | English |
---|---|
Pages (from-to) | 855-859 |
Number of pages | 5 |
Journal | Russian Journal of Inorganic Chemistry |
Volume | 43 |
Issue number | 6 |
State | Published - 1 Jan 1998 |
Externally published | Yes |
ASJC Scopus subject areas
- Materials Science (miscellaneous)
- Physical and Theoretical Chemistry
- Inorganic Chemistry