Bond length and bond order in one of the shortest Cr-Cr bonds.
Multiconfigurational quantum chemical calculations on the R-diimines dichromium compound confirm that the Cr-Cr bond, 1.80 A, is among the shortest Cr(I)-Cr(I) bonds. However, the bond between the two Cr atoms is only a quadruple bond rather than a quintuple bond. The reason why the bond is so short has to be attributed to the strain in the NCCN ligand moieties.
La Macchia
Giovanni
G
Department of Physical Chemistry, University of Geneva, 30 Quai Ernest Ansermet, CH-1211 Geneva, Switzerland.
Aquilante
Francesco
F
Veryazov
Valera
V
Roos
Björn O
BO
Gagliardi
Laura
L