Abstract Two 4-(1H-1,2,4-triazol-1-yl)phenol (hptrz)-based transition metal complexes with different aromatic polycarboxylic acids as co-ligands, {[Cu2(H2O)4(hptrz)2(btec)]⋅2H2O}n (1) and [Cu(hptrz)2 (H2btc)2]·H2O (2) (H4btec = benzene-1,2,4,5-tetracarboxylic acid, H3btc = benzene-1,3,5-tricarboxylic acid), have been obtained, which were structurally characterized by single-crystal X-ray diffraction, elemental analysis, FT-IR spectra, thermogravimetric curves and luminescence spectra in detail. Structural analysis reveals that 1 is a 1-D infinite chain framework extended by btec4– anions, whereas 2 is isolated centrosymmetric mononuclear entities. In contrast, the neutral hptrz is a terminal ligand to complete the metal coordination sphere and it also helps to assemble the low-dimensional coordination sphere into a high-dimensional supramolecular architecture by O–H···O hydrogen-bonding interactions. Additionally, the high stability and luminescence emission suggest that 1 and 2 are good candidates for light emission materials. The magnetic features of 1 may be due to weak antiferromagnetic coupling between CuII ions which are separated by btec4– anions. Graphical Abstract

中文翻译：

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两种基于 4-(1H-1,2,4-triazol-1-yl) 苯酚和不同配体的新型铜 (II) 配合物：合成、晶体结构、发光特性和磁行为

摘要 两种 4-(1H-1,2,4-triazol-1-yl) 苯酚 (hptrz) 基过渡金属配合物，以不同的芳香族多元羧酸为共配体，{[Cu2(H2O)4(hptrz)2( btec)]⋅2H2O}n (1) 和 [Cu(hptrz)2 (H2btc)2]·H2O (2) (H4btec = 苯-1,2,4,5-四羧酸，H3btc = 苯-1,3 ,5-三羧酸),并通过单晶X射线衍射、元素分析、FT-IR光谱、热重曲线和发光光谱对其进行了详细的结构表征。结构分析表明，1 是由 btec4- 阴离子扩展的一维无限链框架，而 2 是孤立的中心对称单核实体。相比之下，中性 hptrz 是完成金属配位球的末端配体，它还有助于通过 O-H···O 氢键相互作用将低维配位球组装成高维超分子结构。此外，高稳定性和发光表明 1 和 2 是发光材料的良好候选者。1 的磁性特征可能是由于被 btec4– 阴离子分隔的 CuII 离子之间的弱反铁磁耦合。图形概要