基于不对称三氮唑衍生物配体的三个配合物的制备、晶体结构及光催化性能 |
Three Coordination Complexes Based on an Asymmetric Triazole Derivative Ligand: Syntheses, Structures and Photocatalytic Properties |
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摘要: 利用水热法合成了基于不对称三氮唑衍生物配体Hptp(Hptp=2-(5-(pyridin-3-yl)-1H-1,2,4-triazol-3-yl)pyrazine)的3个配合物[Cd2(ptp)2(SO4)(H2O)2]n(1)、[Zn(ptp)2(H2O)2](2)和[Cd(ptp)2(H2O)2](3),它们的结构通过元素分析,红外,粉末X射线衍射和X射线单晶衍射表征。配合物1中,配体ptp-和Cu2+形成波浪状的一维结构,这些一维链通过SO42-链接形成三维结构。配合物2和3是同构化合物,单核单元在分子间氢键的作用下形成超分子二维平面。光催化降解实验表明,在双氧水存在时配合物1~3在60 min内使亚甲基蓝的降解率分别达到79%、81%和88%。 |
关键词: 三氮唑衍生物 配合物 光催化 染料降解 |
基金项目: 国家自然科学基金(No.U1604124,21404033,21401046)、河南省科技攻关项目(No.152102210314)、河南省高等学校重点科研项目(No.16A150010)和河南理工大学博士基金(No.72103/001/103)资助。 |
Abstract: Three coordination complexes, namely[Cd2(ptp)2(SO4)(H2O)2]n (1),[Zn(ptp)2(H2O)2] (2) and[Cd(ptp)2(H2O)2] (3) (Hptp=2-(5-(pyridin-3-yl)-1H-1, 2, 4-triazol-3-yl)pyrazine), have been synthesized and characterized by elemental analyses, infrared spectra and single-crystal X-ray diffraction analyze. In complex 1, corrugated 1D chains constructed by the ptp- and Cd2+ were connected by SO42- to form a 3D structure. In isostructural complexes 2 and 3, intermolecular O-H…N hydrogen bonds link the mononuclear molecules into plane superstructure. The photocatalytic experiment result indicates that in the presence of H2O2, the degradation ratios of methylene blue (MB) reach to 79%, 81% and 88%, respectively, when complexes 1, 2 and 3 act as catalyst. |
Keywords: triazole derivative complex photocatalytic degradation |
投稿时间:2016-12-08 修订日期:2017-03-13 |
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徐周庆,何亚玲,李慧军,张培玲,王元,王奇,钟润斌,贾磊.基于不对称三氮唑衍生物配体的三个配合物的制备、晶体结构及光催化性能[J].无机化学学报,2017,33(5):897-904. |
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