Heterometallic analogues of 2> (M = Fe, Ru, Os). The synthesis of the tetracarbonylcyclopentadienylcycloheptatrienyl complexes (M = Fe, Ru; M' = Mo, W). Crystal structures of (Ru-Mo) ...

Article abstract of DOI:10.1016/0022-328X(91)86413-K

The heterobimetallic, metal-metal-bonded complexes (1, M = Ru, M' - Mo; 2, M = Fe, M' = Mo; 3, M = Ru, M' = W) have been synthesised by reaction of Na with .The X-ray crystal structure of 1 reveals an unsupported Ru-Mo bond length of 2.952(1) Angstroem and a cis arrangement of C5H5 and C7H7 rings, but solution infrared studies suggest a solvent-dependent conformation.Treatment of with K gives (4) in very low yield together with the major product, cycloheptatrienyl-bridged 6, η¹-C7H7)Ru(CO)2(η-C5Me5)> (5), which has been characterised crystallographically.