Synthesis, structure, and catalytic performance of heterobimetallic coordination polymers with β-diketone containing imidazole group
作者:Yan Huang、Ping Yang
DOI:10.1016/j.poly.2018.10.050
日期:2019.1
Four heterobimetallic coordination polymers [Cd[Al(L)(3)](2)(NO3)(2) (1), Zn[Al(L)(3)](2)(NO3)(2) (2), Zn[Fe (L)(3)](2)(NO3)(2) (3), and [ZnFe(L)(3)Cl](NO3)center dot 3(MeOH)center dot 3(DMF) (4) have been synthesized. The structural analyses of coordination polymers 1-4 showed that they were trigonal space group, among which, coordination polymer 4 was P3 chiral space group. The circular dichroism spectra also confirmed that coordination polymer 4 had chirality. Zn(II) ion in coordination polymer 4 was tetracoordinated, unsaturated, can act as Lewis acid catalyst. Therefore, coordination polymer 4 can catalyze the ring opening of epoxides with aromatic amines to produce beta-amino alcohols at room temperature. The catalytic reaction was regioselective, easy to operate, and had good catalyst recovery and repeatability. (C) 2018 Elsevier Ltd. All rights reserved.