The crystal structure of methylsilyl)-bis[mu-(dimethylsilyl)]diiron(Fe
-Fe), [Fe-2(CH3Cl-Si)(C2H6Si)(2)(CO)(6)], has been determined. The Fe-
Fe distance is 2.705(1) Angstrom and the Fe-Si distances are 2.322(3)
Angstrom. The combination of the sixfold screw axis and the uniqueness
of the bridging SiMeCl moiety create rotational disorder within the u
nit cell.