Synthesis and structural characterization of a novel WRu2 cluster compound possessing a terminal phenylimido ligand

Abstract

Cluster complex [WRu₂(C₅Me₅)(CO)₆(NPh){C(Et)C(Et)C(CF₃)CH(CF₃)}]2, which possesses a novel terminal phenylimido ligand, has been prepared by treatment of phenylimido cluster [WRu₂(C₅Me₅)(CO)₇(µ₃-NPh)(CF₃CCHCF₃)]1 with hex-3-yne, whereas the respective reaction with dimethyl acetylenedicarboxylate afforded [WRu₂(C₅Me₅)(CO)₆(µ₃-NPh){C(CO₂Me)C(CO₂Me)C(CF₃)CH(CF₃)}]3 containing a regular face-bridging imido ligand; complexes 2 and 3 have been examined by single-crystal X-ray diffraction.