Combining [PPh4](3)[Re7C(CO)(21)] with excess MCL2 (M = Cd, Zn) in acetone provides the complexes [PPh4](2)-[Re7C(CO)(21)(MCI)] (M = Cd, 1; M = Zn, 2) in > 70% yields. The crystal structure of [PPh4](2)[Re7C(CO)(21)- (mu (3)-ZnCl)] shows a typical carbidoheptarhenate complex, with the zinc center positioned symmetrically over one Re-3 face (average Re-Zn distance = 2.71 Angstrom). [GRAPHICS]