Rh(II) and Rh(I) Two-Legged Piano-Stool Complexes: Structure, Reactivity, and Electronic Properties
作者:Felicia M. Dixon、Martin S. Masar、Peter E. Doan、Joshua R. Farrell、Frederick P. Arnold、Chad A. Mirkin、Christopher D. Incarvito、Lev N. Zakharov、Arnold L. Rheingold
DOI:10.1021/ic0204981
日期:2003.5.1
hino)butyl]-2,3,5,6-tetramethylbenzene)Rh (CO)(CH(3)CN)][PF(6)] (11). The Rh(II) complex 6+ reacts with the same small molecules, but over shorter periods of time, to form the same Rh(I) products. In addition, a model two-legged piano-stool complex [(eta(1):eta(6):eta(1)-1,4-bis[3-(diphenylphosphino)propoxy]-2,3,5,6-tetramethylb enzene)Rh][B(C(6)F(5))(4)], 5, has been synthesized and characterized
配体1,4-双[4-(二苯基膦基)丁基] -2,3,5,6-四甲基苯3用于合成单核Rh(II)配合物[(eta(1):eta(6) :eta(1)-1,4-双[4-(二苯基膦基)丁基] -2,3,5,6-四甲基苯)Rh] [PF(6)](2),6+,在两个-腿式钢琴凳的几何形状。报道了这种新颖的复合物的结构和电子性质,包括单晶EPR分析。可以将复合物与其Rh(I)形式完全互变,从而可以比较两种氧化态的结构性质和反应活性。Rh(I)形式6与CO,异氰酸叔丁酯和乙腈反应形成一系列15元单核环烷[[eta(1):eta(1)-1,4-双[4-(二苯基膦基) )丁基] -2,3,5,6-四甲基苯] Rh(CO)(3)] [PF(6)](8),[(eta(1):eta(1)-1,4-bis [ 4-(二苯基膦基)丁基] -2,3,5,6-四甲基苯)Rh(CNC(CH(3))(3))(2)] [PF(