[Re]
A chair conformation comparable to that observed for six-membered rings composed of tetrahedral carbon atoms is found for the cluster anion [Re(6)(µ-H)(5)(CO)(24)](-) (see picture; black spheres: Re, white spheres: µ-H; CO ligands omitted for clarity) in spite of the octahedral coordination at the Re centers. This is the first example of a carbonyl cluster exhibiting a cyclohexane-like geometry of the metallic framework.
Bergamo
M
Dipartimento di Chimica Inorganica, Metallorganica e Analitica, Università degli Studi di Milano, Via G. Venezian 21, I-20133 Milano (Italy).
Beringhelli
T
D'Alfonso
G
Mercandelli
P
Moret
M
Sironi
A