single crystal diffraction methods. Treatment of 4 with AgBF4 in the presence of acetonitrile resulted in the formation of [(As–N)PdMe(CH3CN)]BF4 (6). Complex 6 catalyzed the copolymerization of CO and olefin, but in low conversions. In fact, the palladium black and [(As–N)2Pd](BF4)2 (7) were formed from the copolymerization processes, which may explain the lower catalytic activity of 6. Crystal structure
据报道,手性a-
恶唑啉
配体(As - N)与(COD)PdCl 2和(COD)PdMeCl的配位导致(As - N)PdCl 2(3)和(As - N)PdMeCl(4)。两个3和4通过光谱和X射线单晶衍射法进行表征。在
乙腈存在下用AgBF 4处理4导致形成[(As - N)PdMe(CH 3 CN)] BF 4(6)。配合物6催化CO和烯烃的共聚,但是转化率低。实际上,
钯黑和[(As - N)2 Pd](BF 4)2(7)是通过共聚过程形成的,这可以解释6的较低催化活性。还确定了7的晶体结构。