| 由氢键连接的三个金属-有机网状化合物的合成、结构及半导体性质 |
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| 引用本文： | 陈飞剑,林清芳,王添艳,沈福志,韦正友,梁丽丽. 由氢键连接的三个金属-有机网状化合物的合成、结构及半导体性质[J]. 无机化学学报, 2013, 29(18) |
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| 作者姓名： | 陈飞剑 林清芳 王添艳 沈福志 韦正友 梁丽丽 |
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| 作者单位： | 蚌埠医学院化学教研室, 蚌埠 233030,蚌埠医学院化学教研室, 蚌埠 233030,蚌埠医学院化学教研室, 蚌埠 233030,蚌埠医学院化学教研室, 蚌埠 233030,蚌埠医学院化学教研室, 蚌埠 233030,蚌埠医学院化学教研室, 蚌埠 233030 |
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| 基金项目： | 安徽省高校自然科学研究重点项目(No.KJ2016A462)和蚌埠医学院自然科学基金(No.BYKY1404ZD,BYKY1433)资助。 |
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| 摘 要： | 以2,4,6-三(1-吡唑基)-1,3,5-三嗪(TPTz)与不同金属离子进行溶剂热反应,得到了3个氢键连接的金属-有机网状化合物。实验发现TPTz的水解产物6-(1-吡唑基)-1,3,5-三嗪-2,4-二酚(H2L)在反应中起到了实际的配位作用。单晶结构分析表明,它们是同构化合物,分子式为[M(HL)2]·2H2O(M=Zn,1;Co,2;Mn,3)。每个中心金属原子分别与2个吡唑基上的N、2个吡嗪环上的N和2个水分子中的O形成六配位的结构。2个HL-与1个中心金属配位形成一个零维的金属-有机配合物小分子,这些小分子通过氢键连接进一步拓展为二维层状结构。紫外-可见漫反射(UV-VisDRS)分析结果表明,这3种化合物都是宽系半导体材料,其带隙宽度分别为3.80(Zn),3.30(Co),3.27(Mn)eV,其半导体性质同中心金属原子表现出明显的相关性。
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| 关 键 词： | 金属-有机网状化合物 氢键 2,4,6-三(1-吡唑基)-1,3,5-三嗪 |
Three Hydrogen-Bonded Metal-Organic Networks withTunable Semiconductor Properties |
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| CHEN Fei-Jian,LIN Qing-Fang,WANG Tian-Yan,SHEN Fu-Zhi,WEI Zheng-You and LIANG Li-Li. Three Hydrogen-Bonded Metal-Organic Networks withTunable Semiconductor Properties[J]. Chinese Journal of Inorganic Chemistry, 2013, 29(18) |
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| Authors: | CHEN Fei-Jian LIN Qing-Fang WANG Tian-Yan SHEN Fu-Zhi WEI Zheng-You LIANG Li-Li |
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| Affiliation: | Department of Chemistry, Bengbu Medical College, Bengbu, Anhui 233030, China,Department of Chemistry, Bengbu Medical College, Bengbu, Anhui 233030, China,Department of Chemistry, Bengbu Medical College, Bengbu, Anhui 233030, China,Department of Chemistry, Bengbu Medical College, Bengbu, Anhui 233030, China,Department of Chemistry, Bengbu Medical College, Bengbu, Anhui 233030, China and Department of Chemistry, Bengbu Medical College, Bengbu, Anhui 233030, China |
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| Abstract: | Solvothermal reacition of 2,4,6-tris(pyrezole-1-yl)-1,3,5-s-triazine (TPTz) and three metal ions resulted in the formation of three hydrogen-bonded metal-organic networks. It''s found that 6-(pyrezole-1-yl)-1,3,5-triazine-2,4-diol (H2L) hydrolyzed from TPTz acts as the ligand in reality. Single-crystal structure analysis shows that the three compounds are isomorphous with the formula of [M(HL)2]·2H2O (M=Zn, 1; Co, 2; Mn, 3). The center metal ion is six-coordinated by two N atoms from pyrazolyl, two N atoms from triazine ring and two O atoms from waters, respectively. Two HL- coordinate to one center metal ion forming a zero-dimensional metal-organic molecular, which was linked by the hydrogen bond, and then extended to a two-dimensional layer network. UV-Vis DRS analysis shows that they are all wide band semiconductors with a band-gap of 3.80 (Zn), 3.30 (Co), 3.27 (Mn) eV, respectively, showing an obvious dependence on their center metal ions. CCDC: 904985, 1; 904986, 2; 904987, 3. |
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| Keywords: | metal-organic networks hydrogen-bond 2,4,6-tris(pyrezole-1-yl)-1,3,5-s-triazine |
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