两种含Ni(Ⅱ)配位超分子的研制及光电性能  

Synthesis,structure and surface photovoltage of two Ni(Ⅱ) coordination supramolecules

作　　者：金晶[1] 刘永华[1] 张丽[1] 

机构地区：[1]辽宁师范大学化学化工学院,辽宁大连116029

出　　处：《辽宁师范大学学报（自然科学版）》2011年第3期334-338,共5页Journal of Liaoning Normal University:Natural Science Edition

基　　金：国家自然科学基金项目(20571037);辽宁省教育厅创新团队项目(2007T092)

摘　　要：采用水热方法合成了2种Ni（Ⅱ）的配合物,[Ni（Hdcpz）2（H2O）2].H2O（H2dcpz=3,5-吡唑二羧酸）（1）,[Ni（dcp）（H2O）4].2H2O（H2dcp=2,5-吡啶二羧酸）（2）.通过X-射线单晶衍射、IR、UV-Vis-NIR吸收光谱和表面光电压光谱（SPS）对其进行了表征.单晶结构分析表明,2种配合物均为分子型配合物,并由氢键进一步将分子网联成3D超分子.这2种配合物的表面光电压谱的测定表明,它们在300~800 nm范围内呈现出正的表面光伏响应.同时,将配合物的SPS与UV-Vis-NIR吸收光谱进行了对比分析,发现SPS中响应带的数量和位置与其UV-Vis吸收光谱中的吸收峰呈现出一致性.Two complexes [Ni（Hdcpz）2（H2O）2]· H2O（1） and [Ni（dcp）（H2O4] · 2H2O（2） have been hydrothermally synthesized.Their structures were determined by single crystal X-ray diffraction,and complexes were characterized by IR,UV-Vis-NIR absorption spectrum,surface photovoltage spectroscopy（SPS）.Structural analyses indicate that the two Ni（Ⅱ） complexes are all molecular complexes,which are linked into 3D supramolecule by hydrogen bonds.The study on photo-physical property shows that two complexes exhibit positive surface photovoltage responses in the range of 300~800 nm.Moreover,compared with UV-Vis-NIR spetra,the number and position of response bands in SPS is in accord with those of absorption peaks in UV-Vis-NIR spetra.

关 键 词：Ni(Ⅱ)配位超分子 晶体结构 光电性能 氢键 

分 类 号：O614[理学—无机化学]