Abstract Two novel coordination polymers based on Zn(II) ions, 1-((1 H -1,2,4-triazol-1-yl)methyl)-3-(4-pyridyl)-5-(3-pyridyl)-1,2,4-triazole (3,4′-tmbpt), and two aromatic polycarboxylate anions, namely [Zn(3,4′-tmbpt)( m -bdc)(H 2 O)]·H 2 O ( 1 ) and [Zn 2 (3,4′-tmbpt)(btc)(OH)] ( 2 ) ( m -H 2 bdc = 1,3-benzenedicarboxylic acid and H 3 btc = 1,3,5-benzenetricarboxylic acid), have been synthesized. The structures of 1 and 2 have been characterized by single-crystal X-ray diffraction analyses, elemental analyses, infrared spectra, powder X-ray diffraction analyses and thermogravimetric analyses. Compound 1 shows a 2D layered structure, which is extended by the hydrogen bonding interactions to form a 3D supramolecular architecture. Compound 2 exhibits a 3D twofold interpenetrating framework with a Schläfli symbol of (6 3 )(6 9 ·8). Diffuse reflection spectra of 1 and 2 indicate that the band gaps of 1 and 2 are 3.42 and 3.63 eV, respectively. The results indicate that compounds 1 and 2 may be potential semiconductive materials with wide band gaps. Moreover, 1 and 2 display intense blue-green emission and appear to be potential photoactive materials. Graphic Abstract Two new coordination polymers based on a multidentate N-donor ligand, Zn(II) ions, and two aromatic polycarboxylate anions have been synthesized and characterized. The optical band gaps and photoluminescent spectra of the compounds have been investigated.

中文翻译：

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两种 Zn(II) 配位聚合物的合成、晶体结构、表征、光学带隙和光致发光

摘要 两种基于 Zn(II) 离子的新型配位聚合物，1-((1 H -1,2,4-triazol-1-yl)methyl)-3-(4-pyridyl)-5-(3-pyridyl) -1,2,4-三唑 (3,4'-tmbpt) 和两个芳香族聚羧酸根阴离子，即 [Zn(3,4'-tmbpt)( m -bdc)(H 2 O)]·H 2 O ( 1 ) 和 [Zn 2 (3,4'-tmbpt)(btc)(OH)] ( 2 ) ( m -H 2 bdc = 1,3-苯二甲酸和 H 3 btc = 1,3,5-苯三甲酸)，已经合成。1 和 2 的结构已通过单晶 X 射线衍射分析、元素分析、红外光谱、粉末 X 射线衍射分析和热重分析表征。化合物 1 显示出 2D 层状结构，通过氢键相互作用扩展形成 3D 超分子结构。化合物 2 表现出具有 (6 3 )(6 9 ·8) 的 Schläfli 符号的 3D 双重互穿框架。1和2的漫反射光谱表明1和2的带隙分别为3.42和3.63 eV。结果表明化合物1和2可能是具有宽带隙的潜在半导体材料。此外，1 和 2 显示出强烈的蓝绿色发射，似乎是潜在的光敏材料。图形摘要 合成并表征了两种基于多齿 N 供体配体、Zn(II) 离子和两种芳族聚羧酸根阴离子的新型配位聚合物。研究了化合物的光学带隙和光致发光光谱。1 和 2 显示出强烈的蓝绿色发射，似乎是潜在的光敏材料。图形摘要 合成并表征了两种基于多齿 N 供体配体、Zn(II) 离子和两种芳族聚羧酸根阴离子的新型配位聚合物。研究了化合物的光学带隙和光致发光光谱。1 和 2 显示出强烈的蓝绿色发射，似乎是潜在的光敏材料。图形摘要 合成并表征了两种基于多齿 N 供体配体、Zn(II) 离子和两种芳族聚羧酸根阴离子的新型配位聚合物。研究了化合物的光学带隙和光致发光光谱。