The complexes [MI2(CO)(3)(Fe4Cp4S6-S,S')] {M = W (1) or Mo (2)}, [MI(SR)(CO
)(3)(Fe4Cp4S6-S,S')] {R = Ph; M = W (3) or Mo (4): R = C6H2Me3-2,4,6; M = W
(5) or Mo (6)}, [M(SR)(2)(CO)(3)(Fe4Cp4S6-S,S')] {R = SPh; M = W (7) or Mo
(8): R = C6H2Me3-2,4,6; M = W (9) or Mo (10)}, [MI(CO)(3)(PPh3)(Fe4Cp4S6-S
,S')]I {M = W (11) or Mo (12)}, [M(CO)(3)(PPh3)(Fe4Cp4S6-S,S')]I-2 {M = W (
13) or Mo (14)}, [M(CO)(3)(P-P)(Fe4Cp4S6-S,S')]I-2 {P-P = diphenylphosphino
ethane (dppe); M = W (15) or Mo (16): P-P = diphenylphosphinopropane (dppp)
; M = W (17) or Mo (18)} and [WI(CO)(eta(2)-RC2R)(2)(Fe4Cp4S6-S,S')]I {R =
Me (19) or Ph (20)} have been prepared. (C) 1999 Elsevier Science S.A. All
rights reserved.