基于2,6-二乙酰基吡啶二缩氨基脲和硅钨钒杂多酸构建三阶非线性光学材料

Construction of three order nonlinear optical material based on 2,6-diacetylpyridine bis-(semicarbazone) and silicon-tungsten vanadium heteropoly acid

以多酸阴离子簇为主体,选用2,6-二乙酰基吡啶二缩氨基脲(DAPSC)为有机配体,在水热条件下,设计合成了新型的基于单钒取代的Keggin型多酸基无机-有机杂化配合物[Ni(H_2O)_2(DAPSC)][H_3SiW_(11)VO_(40)]·7H_2O.单晶结构分析表明该化合物是零维结构,由平面型席夫碱修饰的多酸基配合物.此外,通过元素分析、红外光谱、粉末X射线衍射、能谱分析等方法对其结构进行表征,并探索研究了其三阶非线性光学性质.

A novel inorganic-organic hybrid compounds based on Mono vanadium substituted polyoxometalates,formulated as[Ni（H_2O）_2（DAPSC）][H_3SiW_（11）VO_（40）]·7 H_2O was successfully synthesized by employing 2,6-diacetylpyridine bis-（semicarbazone）（abbreviated as DAPSC）as organic ligands under hydrothermal conditions.Single crystal X-ray structure analysis showed title compound is zero dimensional isolated structure and modified by planar Schiff base.In addition,it was characterized by infrared spectra（IR）,powder X-ray diffraction（PXRD）,energy dispersive spectrometer（EDS）.the nonlinear optical（NLO）properties of these compounds was also investigated.