Metallathiirenes. 5. Bis- and tris(methimazolyl)borato thiocarbamoyl complexes of molybdenum(II)

Thiocarbamoyl complexes [Mo(eta(2)-SCNMe2)-(CO)(2){HnB(mt)(4-n)}] (n = 1, 2) are obtained from the reactions of [Mo(eta(2)-SCNMe2)Cl(CO)(2)(tmeda)]andNa[HnB(mt)(4-n)] or via reactions of the salts Na[Mo(CO)(2+n){HnB(mt)(4-n)}] with Me2NCSCl. For n = 2, the complex displays agostic B-H-Mo coordination in both solution and the solid state