富电子金属有机化合物 MR3( Lewis碱 As MRs CH 3 CH CH Ph Ph As -Ph Phd AS(CH3)2 Ph As(CH3)2三.富电子金属有机化合物 : MR3 (Lewis 碱) MR5 CH3 CH3 CH3 As Ph As Ph Ph Ph Ph As(CH3) 2 As(CH3) 2