Unexpected Formation of the Novel Pentanuclear Heterodimetallic Metallamacrocycle {p-[(CO)₃MoC₅H₄C(O)]₂C₆H₄}Ph₄Sn₃S₃

Reaction of the dianion {p-[(CO)₃MoC₅H₄C(O)]₂C₆H₄}^2- with PhSnCl₃ yields the tetranuclear heterodimetallic complex p-[(PhCl₂Sn)(CO)₃MoC₅H₄C(O)]₂C₆H₄ (1). Treatment of complex 1 with Na₂S·9H₂O in boiling ethanol results in the novel pentanuclear heterodimetallic metallamacrocyclic complex {p-[(CO)₃MoC₅H₄C(O)]₂C₆H₄}Ph₄Sn₃S₃ (2), which fuses a cyclic Sn₃S₃ system.