Synthesis, Structure, and Luminescence Properties of Rare Earth Complexes with β-Diketone containing Imidazole Group
作者:Ping Yang
DOI:10.1002/zaac.201800229
日期:2018.8.16
series of lanthanide metal complexes [Ln = Sm (1 and 5), Eu (2 and 6), Tb (3 and 7), Er (4 and 8)] were synthesized with imidazole-containing β-diketone ligands. Complexes 1–8 were characterized by IR, elemental analysis, powder XRD, and TG measurements. The photoluminescence properties and the probable mechanism of the Sm, Eu, and Tb complexes were studied. The Eu complex gener-
一系列镧系金属配合物[Ln = Sm (1 and 5), Eu (2 and 6), Tb (3 and 7), Er (4 and 8)] 用含咪唑的β-二酮配体合成。通过红外、元素分析、粉末 XRD 和 TG 测量对配合物 1-8 进行了表征。研究了Sm、Eu和Tb配合物的光致发光特性和可能的机理。Eu 络合物生成
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.