made in this way. However, treatment of the readily available complexes [(RCC)2Pt(µ-dppm)2AgX](X = Cl or l) with [W(CO)3(NCMe)3] or [Mo(CO)3(cht)] gave the above mentioned platinum–tungsten or –molybdenum complexes with displacement of silver halide (transmetallation), usually in good yield and without formation of the diplatinum complexes. Purple [(PhCC)Pt(µ-CCPh)(µ-dppm)2Cr(CO)3] was made similarly
用[W(CO)3(NCMe)3 ]处理反式-[Pt(C CR)2(
DPPM- P)2 ](
DPPM = Ph 2 PCH 2 PPh 2),得到[(RC C)Pt(µ- C CR)(μ-
DPPM)2 W(CO)3 ](R = Ph,
对甲苯基或Me)伴随[Pt 2(C CR)4-(μ-
DPPM)2 ]等产品。用[Mo(CO)4处理反式-[Pt(C CPh)2(
DPPM- P)2 ]-(1,5-cod)](1,5-cod =环
辛-1,5-二烯)或与[Mo(CO)3(cht)](cht =环庚-1,3,5-
三烯)以20–25%的收率得到[(PhC C)Pt(µ-C CPh)(µ-
DPPM)2 Mo(CO)3 ],但无法以此方式制备相应的
铬化合物。然而,治疗的容易得到的复合物的[(RC C)2
铂(μ-
DPPM)2的AgX](X = Cl或升)与[W(CO)3(NCMe)3 ]或[沫(CO)3( c