Lanthanide complexes supported via benzimidazole carboxylic acid ligand: Synthesis, luminescence and magnetic properties
作者:Jia-Qiang Du、Jun-Liang Dong、Fei Xie、Ru-Xia Yang、Hai-Ming Lan、Duo-Zhi Wang
DOI:10.1016/j.molstruc.2019.127345
日期:2020.2
Abstract Six new complexes [Gd(L1)2(H2O)3]·Cl}n (1), [Eu(HL2)2(H2O)6]·(H2O)4·3Cl (2), [Ln(HL2)2(H2O)6]·3Cl [Ln = Ho (3) and Sm (4)], [Ln(HL3)2(H2O)2]·2Cl}n [Ln = Eu (5) and Yb (6)] (H2L1 = 2-(hydroxymethyl)-1H-benzo[d]imidazole-5-carboxylic acid, H2L2 = 2-(4-hydroxyphenyl)-1H-benzo[d]imidazole-5-carboxylic acid, H3L3 = 2-(2-carboxyethyl)-1H-benzo[d]imidazole-5-carboxylic acid) have been solvothermally
摘要 六种新配合物 [Gd(L1)2(H2O)3]·Cl}n (1), [Eu(HL2)2(H2O)6]·(H2O)4·3Cl (2), [Ln(HL2) )2(H2O)6]·3Cl [Ln = Ho (3) 和 Sm (4)], [Ln(HL3)2(H2O)2]·2Cl}n [Ln = Eu (5) 和 Yb (6) )] (H2L1 = 2-(羟甲基)-1H-苯并[d]咪唑-5-羧酸,H2L2 = 2-(4-羟苯基)-1H-苯并[d]咪唑-5-羧酸,H3L3 = 2 -(2-羧乙基)-1H-苯并[d]咪唑-5-羧酸)已通过单晶X射线衍射、红外光谱、元素分析、粉末X射线衍射(PXRD)进行溶剂热合成和结构表征和热重分析 (TGA)。配合物 1、5 和 6 是无限的一维 (1D) 链,通过氢键相互作用形成 3D 超分子结构。配合物2-4为单核结构,通过氢键相互作用进一步形成3D超分子结