Unusual coordination of tetrylenes to molybdenum carbonyl fragments

Abstract

Reactions of the tetrylenes Ge(SAr^Me₆)₂ (1) (Ar^Me₆ = C₆H₃-2,6(C₆H₂-2,4,6-Me₃)₂), and Sn(SAr^Me₆)₂ (2) with (Mo(CO)₄(NBD) (NBD = bicyclo[2.2.1]hepta-2,5-diene) gave three new, unusual complexes [Mo(THF)(CO)₃{Ge(SAr^Me₆)₂}] (3), [Mo(THF)(CO)₃{Ge(SAr^Me₆)₂}] (4) and [Mo(CO)₄{Sn(SAr^Me₆)₂}] (5) which display no significant Ge/Sn–Mo bonding. Instead the ligands are coordinated to molybdenum in a bidentate fashion via the thiolato sulfurs.