Cd(II) enantiomers embedding helices from 3D frameworks to 2D layers controlled by shapes of ancillary ligands
作者:Zhong-Xuan Xu、Xu-Ling Bai、Li-Feng Li、Shi-Fei XU
DOI:10.1080/00958972.2021.1898602
日期:2021.4.3
These complexes show different structures depending on shapes of ancillary ligands. For the linear 1,4-BMIB, complexes 1-R and 1-S are three dimensional (3D) frameworks with dinuclear clusters of Cd(II). For the V-shaped 1,3-BMIB, complexes 2-R and 2-S are two dimensional (2D) layers, where 4-connected Cd(II) centers were isolated by imidazole groups and carboxylic groups from 1,3-BMIB and H2CBA, respectively
摘要 两对手性配位聚合物,[Cd 2((R)-CBA)2(1,4-BMIB)] n(1- R),[Cd 2((R)-CBA)2(1,4-BMIB) )] n(1- S),[Cd((R)-CBA)(1,3-BMIB)]·H 2 O} n(2- R)和[Cd((R)-CBA) (1,3-BMIB)]·H 2 O} n(2- S)(H 2CBA = 4-(1-羧基乙氧基)苯甲酸,1,4-BMIB = 1,4-双(2-甲基-1H-咪唑-1-基)苯,1,3-BMIB = 1,3-双( (2-甲基-1H-咪唑-1-基)苯在水热条件下由乳酸衍生物H 2 CBA和咪唑辅助配体构建而成。这些配合物根据辅助配体的形状显示不同的结构。对于线性1,4-BMIB,复合物1- R和1- S是具有Cd(II)双核簇的三维(3D)骨架。对于V型1,3-BMIB,配合物2- R和2- S是二维(2D)层,其中4-连接的Cd(II)中心通过咪唑基团和羧基从1