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采用水热和水浴合成法,以不同的刚性和柔性有机羧酸衍生物为配体,合成了2个Ni(Ⅱ)配合物:[Ni(otpha)(Imh)3(H2O)2].H2O(1)(H2otpha=邻苯二甲酸),[Ni(mal)(phen)(H2O)2](2)(mal=丙二酸,phen=1,10-菲啰啉).采用X-射线单晶衍射确定2个配合物的分子结构.结构分析表明,配合物1和2均属于单斜晶系,空间群分别为P2(1)/n和P2(1)/c,中心金属Ni(Ⅱ)离子均为6配位,并由氢键将其分别连接成具有3D和1D结构的超分子.采用表面光电压光谱(SPS)研究了2个配合物的表面光电性能.结果表明,它们在300～800nm范围内均呈现出正的表面光伏响应,表明它们具有一定的光-电转换能力.对2个配合物的UV-Vis-NIR吸收光谱进行了测定和分析指认,并分别将它们的SPS谱与UV-Vis吸收光谱进行了对比分析,发现SPS谱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 Ni (Ⅱ) complexes [Ni (otpha) (Imh) 3 (H2O) 2] were synthesized by hydrothermal method and water bath method using different rigid and flexible organic carboxylic acid derivatives as ligands. (2) (mal = malonic acid, phen = 1, 10-phenanthroline) using X-ray The molecular structures of the two complexes were confirmed by single crystal diffraction. Structural analysis showed that complexes 1 and 2 belong to the monoclinic system with space groups P2 (1) / n and P2 (1) / c, respectively, Ⅱ) ions are all 6-coordinated, which are connected by hydrogen bonds to form 3D and 1D supermolecules, respectively.The surface photovoltages of the two complexes were investigated by surface photovoltage spectroscopy (SPS) Positive surface photovoltage responses in the range of 300-800 nm showed that they had some photo-to-electrical conversion ability.The UV-Vis-NIR absorption spectra of the two complexes were determined and analyzed, and their SPS spectra and UV-Vis absorption spectra were compared and the results showed that the number and location of the response bands in the SPS spectra were consistent with the absorption peaks in UV-Vis absorption spectra.