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Two New Nonlinear Optical and Ferroelectric Zn(II) Compounds Based on Nicotinic Acid and Tetrazole Derivative Ligands

机译:基于烟酸和四唑衍生物配体的两种新型非线性光学和铁电Zn(II)化合物

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摘要

Two new zinc compounds, [Zn-2(mtz)-(nic)(2)(OH)](n)center dot 0.5nH(2)O (1) and [Zn(phtz)(nic)](2n) (2) (Hmtz = 5-methyltetrazole, Hphtz = 5-phenyltetrazole, Hnic = nicotinic acid), have been synthesized by a dual-ligand approach under solvothermal conditions. The compounds were characterized by single-crystal X-ray diffraction, elemental analysis, and infrared spectroscopy, respectively. The X-ray diffraction analysis reveals that both compounds exhibit a noncentrosymmetric polar packing arrangement. Compound 1 is a 3D framework constructed from the zigzag chain subunits of [Zn(nic)](+) with a 4-connected irl topology. Compound 2 possesses a 2D 4-connected sql topology constructed from the linear chain subunit of [Zn(nic)](+), which are linked together with phtz ligands. Impressively, both of the two compounds display second-harmonic generation response and ferroelectric behaviors. Furthermore, the photoluminescence of the compounds was also investigated.
机译:两种新的锌化合物,[Zn-2(mtz)-(nic)(2)(OH)](n)中心点0.5nH(2)O(1)和[Zn(phtz)(nic)](2n) (2)(Hmtz = 5-甲基四唑,Hphtz = 5-苯基四唑,Hnic =烟酸),是在溶剂热条件下通过双配体方法合成的。分别通过单晶X射线衍射,元素分析和红外光谱对化合物进行了表征。 X射线衍射分析表明这两种化合物均表现出非中心对称的极性堆积排列。化合物1是由[Zn(nic)](+)的锯齿形链亚基构成的3D框架,具有4个连接的irl拓扑。化合物2具有由[Zn(nic)](+)的线性链亚基构成的2D 4连接sql拓扑,它们与phtz配体连接在一起。令人印象深刻的是,这两种化合物都显示出二次谐波产生响应和铁电行为。此外,还研究了化合物的光致发光。

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