2-巯基烟酸氧钒(Ⅴ)配合物的合成与表征

Synthesis and structural analysis of 2-mercaptonicotinic acid oxovanadium(Ⅴ)

目的合成新型有机羧酸氧钒配合物——2-巯基烟酸氧钒（V）配合物。方法以V205、2-巯基烟酸等为原料，采用水热法制备，以热重分析法、红外光谱、紫外光谱、原子吸收光谱和质谱对其结构进行初步确证。结果合成产物为淡黄色结晶，其红外光谱图上有3093～2879、1566、1683、1446、881cm。等多处特征吸收峰，紫外吸收光谱在350nm出现强的百π→π。吸收，配合物元素分析数据、结构参数与计算值相符合。结论所合成的配合物为目标配合物。

Objective To synthesize and identify 2-mercaptonicotinic acid oxovanadium（ V ） complex. Methods 2-mercaptonicotinic acid oxovanadium （V） complex were synthesized with the hydrothermal method. Its chemical structure was determined by thermogravimetric analysis, IR, UV and atomic absorption spectra. Results Pale yellow crystals of 2-mercaptonicotinic acid oxovanadium （ V ） complex were obtained with characteristic absorption peaks at 3 093 -2 879,1 566,1 683,1 446,881 cm^-1 in IR, and along with strong π→π absorption at 350 nm in UV. The complex＇s elemental analysis and structural data were identical with calculated results. The crystals had special morphometry through preliminary study, and its diagrammatic sketch of crystal structure was simulated. Conclusions 2-mcrcaptonicotinic acid oxovanadium （ V ） complex were synthesized successfully.