A series of new acceptor pincer Ru(II) complexes are reported. The carbonyl complex (CF3PCP)Ru(CO)Cl2−Et3NH+ is obtained from the reaction of CF3PCPH with [(cod)Ru(μ-Cl)2]n. Chloride displacement with CF3PCPH, CO, PPh3, or C2H4 gave complexes of the type (CF3PCP)Ru(CO)(L)Cl, or in the case of CF3PCPH, the bridged dimeric complex [(CF3PCP)Ru(CO)Cl]2(μ-CF3PCPH). Chloride abstraction from (CF3PCP)Ru(CO)(L)Cl, L = CO or PPh3 by (Et3Si)2(μ-H)+B(C6F5)4− followed by Et3N addition produced (CF3PCP)Ru(CO)(L)(H) products. Reaction of cis-(CF3PCP)Ru(CO)2Cl with (Et3Si)2(μ-H)+B(C6F5)4− in the presence of excess CO afforded (CF3PCP)Ru(CO)3+. The reaction of CF3PCPH with (PPh3)3Ru(H)(O2CR) (R = Me or Ph) produced the corresponding carboxylate complexes (CF3PCP)Ru(PPh3)(O2CR).
报道了一系列新的受体钳Ru(II)配合物。羰基配合物(
CF3PCP)Ru(CO)Cl2−Et3NH+是通过 CPH与[(cod)Ru(μ-Cl)2]n的反应获得的。用 CPH、CO、PPh3或
C2H4置换
氯化物,可得到( CP)Ru(CO)(L)Cl类型的配合物,对于 CPH,可得到桥联二聚体配合物[( CP)Ru(CO)Cl]2(μ- CPH)。通过(Et3Si)2(μ-H)+B(
C6F5)4−从( CP)Ru(CO)(L)Cl、L = CO或PPh3中提取
氯化物,然后加入Et3N,可得到( CP)Ru(CO)(L)(H)产物。顺式-( CP)Ru(CO)2Cl与(Et3Si)2(μ-H)+B( )4−在过量CO存在下的反应可得到( CP)Ru(CO)3+。 CPH与(PPh3)3Ru(H)(O2CR)(R = Me或Ph)的反应可得到相应的
羧酸盐配合物(
CF3PC