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（英文）

发布时间：2018-01-06 22:30

本文关键词：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（英文）　出处：《无机化学学报》2016年07期 　论文类型：期刊论文

【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(H_2L)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]·2H_2O(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一有机配合物小分子,这些小分子通过氢键连接进一步拓展为二维层状结构。紫外一可见漫反射(UV-Vis DRS)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R%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。
[Abstract]:The solvothermal reaction of TPTz with different metal ions was studied. Three hydrogen-bonded metal-organic reticular compounds were obtained. It was found that the hydrolysate of TPTz was 6-1-pyrazolyl-3-triazine-2. The single crystal structure analysis shows that they are isomorphic compounds and the molecular formula is:. [MH2O2] 路2H2O1; Cox2; Each central metal atom is associated with N on two pyrazole groups. The N on two pyrazine rings and O in two water molecules form a six-coordinated structure, and two HL coordinate with a central metal to form a zero-dimensional metal-organic complex small molecule. These small molecules are further extended to two-dimensional layered structure by hydrogen bonding. UV-Vis DRS analysis results show that the three compounds are wide-range semiconductor materials. The band gap width fraction (R%) is 3.80 ~ (3. 30) ~ (3. 30) ~ (3. 27) mn ~ (2 +) V, and its semiconductor properties are obviously correlated with the central metal atoms.
【作者单位】：蚌埠医学院化学教研室;
【基金】：安徽省高校自然科学研究重点项目(No.KJ2016A462) 蚌埠医学院自然科学基金(No.BYKC1401ZD,BYKY1433)资助
【分类号】：O641.4
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