h PhaP c)140 0 103 132pm 39 Ph 炔烃(PhC=CPh)配合物(Ph3P2Pt( PhccPh)的结构Pt C C Ph Ph Ph3 P Ph3 P 132pm 103 39 0 0 0 140 炔烃（PhCCPh)配合物(Ph3P)2Pt (PhCCPh) 的结构