5-(3-吡啶基)-1H-四氮唑配体构筑的[Ni_2(ptzH)_3(H_2O)_6]^(4+)二聚体修饰的八钼酸盐化合物  

A new [Ni_2(ptzH)_3(H_2O)_6]^(4+) dimer modif ied octamolybdate compound by using 5-(3-pyridyl)-1H-tetrazole ligand

作　　者：应俊[1] 侯雪[1] 李天娇[1] 肖茹[1] 孙娜[2] 赵莹莹[1] 李娜[1] 倪怀平 田爱香[1] 

机构地区：[1]渤海大学化学系,辽宁锦州121000 [2]河北化工医药职业技术学院化学与环境工程系,河北石家庄050026

出　　处：《分子科学学报》2016年第2期129-135,共7页Journal of Molecular Science

基　　金：国家自然科学基金资助项目(21101015);辽宁省高等学校青年学者成长计划资助项目(LJQ2012097)

摘　　要：在水热条件下采用5-(3-吡啶基)-1H-四氮唑配体合成了基于八钼酸盐的有机-无机杂化化合物[Ni_2(ptz H)_3(H_2O)_6](β-Mo_8O_(26))·2H_2O(ptz H=5-(3-吡啶基)-1H-四氮唑),并通过单晶X-射线、元素分析和红外光谱对其进行了表征.化合物中存在β型八钼酸盐[Mo_8O_(26)]~)4-_和阳离子二聚体[Ni_2(ptz H)_3(H_2O)_6]^(4+)2个孤立的亚单元.在这个二聚体中,2个Ni原子被3个ptz H分子固定.相邻的Ni二聚体之间存在丰富的π…π堆积作用,形成1个带有菱形格子的二维超分子金属-有机层.[β-Mo_8O_(26)]^(4-)多阴离子通过提供大量的氢键作用而占据在该超分子二维层的菱形格子中.A new octamolybdate based organic-inorganic hybrid compound,namely [Ni2（ptz H）3（H2O）6]（β-Mo8O（26））·2H2O（ptz H=5-（3-pyridyl）-1H-tetrazole）, was hydrothermally synthesized by using the ptz H ligand and characterized by single-crystal X-ray diffraction, elemental analyses and IR spectrum. There exist two discrete subunitsin title compound： the β-type octamolybdate cluster [Mo8O（26）]-（4-） and the cationic dimer [Ni2（ptz H）3（H2O）6]-（4＋）. In the dimer, two Ni ions are fused by three ptz H molecules. There are abundant π …π stacking interactions between these Ni dimers and a supramolecular metal-organic layer is constructed with rhombus grids. The [（β-Mo8O（26））]-（4-） anions embed in these rhombus grids by offering plenty hydrogen bonding interactions. The electrochemical and photocatalytic properties of the title compound have been studied.

关 键 词：八钼酸盐 5-(3-吡啶基)-1H-四氮唑配体 Ni二聚体 电化学 光催化性能 

分 类 号：O614[理学—无机化学]