Carbonyl Complexes of Mo and

R B Me being a dimer with chelating and bridging ligands. The 

MoBr2(CO) with Ph2p(S)SH in methanol yields [Mo(CO) (S2PPh2 3J This product shows no tendency to form a dicarbonyl but will react with ligands to form [Mo(CO) 2 (S2PPh2) 3] ( = Ph2EtP, or 

Photolysis of a variety of [(n -arene)Cr(CO)complexes in the presence of MeCN or p-CH-C H.CN affords 

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