Metallathiirenes. 5.1 Bis- and Tris(methimazolyl)borato Thiocarbamoyl Complexes of Molybdenum(II)

Thiocarbamoyl complexes [Mo(η 2 -SCNMe 2 )(CO) 2 {H n B(mt) 4 - n }] ( n = 1, 2) are obtained from the reactions of [Mo(η 2 -SCNMe 2 )Cl(CO) 2 (tmeda)] and Na[H n B(mt) 4 - n ] or via reactions of the salts Na[Mo(CO) 2+ n {H n B(mt) 4 - n }] with Me 2 NCSCl. For n = 2, the complex displays agostic B−H−Mo coordination in both solution and the solid state.