Synthesis and Structure of Magnesium and Group 13 Metal Bis(thiophosphinoyl)methanediide Complexes
摘要:
Metalations of bis(diphenylthiophosphinoyl)methane, CH2(PPh2=S)(2), with equimolar (BuLi)-Li-n or (Bu2Mg)-Mg-n in THF afforded [Li{(S=PPh2)(2)CH}(THF)(Et2O)] (1) and [MgC(PPh2=S)(2)(THF)](2) (2), respectively. Compound 1 with a group 13 metal chloride MCl3 (M = Al, Ga, In) gave the methanediide complex [MCl{C(PPh2=S)(2)}](2) = Al (3), Ga (4), In (5)). Compounds 3-5 are believed to be formed by ligand transfer reaction followed by dehydrochlorination. X-ray structures of 1-5 have been determined. It was found that the magnesium complex 2 has a similar structure to the group 13 metal analogues 3-5.