Mixed-metal cluster chemistry. 25. Mixed ligand derivatives of MoIr 3 (u-CO) 3 (CO) 8 (n-C 5 R 5 ) (R=H,Me)and Mo 2 Ir 2 (u-CO) 3 (C0) 7 (n-C 5 H 5 ) 2 ; X-ray cystal structures of MoIr 3 (u-CO) 3 (CO) 6 (PPh 3 ) 2 (η-C 5 Me 5 )and Mo 2 Ir 2 (u 4 -η-

Abstract

Reactions of MoIr3(μ-CO)3(CO)8 (η-C5Me5) (1) with stoichiometric amounts of the isocyanide ButNC afford the ligand substituted clusters MoIr3(μ-CO)3 (CNBut)n(CO)8-n(η-C5 Me5) (n=1 (2), 2 (3), 3 (4)) in fair to good yields (13-58%). In contrast, 1 reac