Structural Characterization of Copper(I) Complexes Supported by β-Diketiminate Ligands with Different Substitution Patterns
作者:Chizu Shimokawa、Yoshimitsu Tachi、Nagatoshi Nishiwaki、Masahiro Ariga、Shinobu Itoh
DOI:10.1246/bcsj.79.118
日期:2006.1
bis(β-diketiminato)copper(II) complex 1 [a product of the disproportionation reaction of copper(1)] (R 3 = Ph), head-to-tail linear coordination polymer copper(I) complex 2 (R 3 = Mes, (mesityl)), and mononuclear copper(I) complex 3 (R 3 = Dipp (2,6-diisopropylphenyl)). On the other hand, α-cyano-ligand (R 1 = CN and R 2 = H or Me) always gave head-to-tail coordination polymer copper(I) complexes (4-8)
通过使用一系列 β-二酮亚胺配体 (R1,R2 L R3- , [(R 3 )NC(R 2 )-C(R 1 )-C(R 2 )-N(R 3 ) 生成的铜 (I) 配合物)] - ,参见图表 1;“β-二酮亚胺”表示烯胺酮亚胺类似物) 已通过 X 射线晶体学分析进行结构表征。在α-硝基-配体系统(R 1 = NO 2 和R 2 = H)中,所得产物的结构很大程度上受氮取代基R 3 的影响,提供双(β-二酮亚基)铜(II)配合物1 [铜(1) 歧化反应的产物] (R 3 = Ph)、头对尾线性配位聚合物铜(I) 配合物2 (R 3 = Mes, (mesityl)) 和单核铜(I ) 络合物 3 (R 3 = Dipp (2,6-二异丙基苯基))。另一方面,α-氰基配体(R 1 = CN 和R 2 = H 或Me)总是产生头对尾配位聚合物铜(I)配合物(4-8),而与芳族取代基R 3 无关。在这两个系统中,β-二酮亚胺配体均表现出