Xinjiang Key Laboratory of Electronic Information Materials and Devices, Xinjiang Technical Institute of Physics & Chemistry, Chinese Academy of Sciences, 40-1 South Beijing Road, Urumqi 830011, China.
Inorg Chem. 2011 Mar 21;50(6):2415-9. doi: 10.1021/ic102214q. Epub 2011 Feb 21.
A new noncentrosymmetric polyborate, Li(4)Cs(3)B(7)-O(14), has been synthesized using the conventional solid state reaction method. It crystallizes in the trigonal space group P3(1)21 (No. 152) with unit cell parameters of a = 6.9313(6) Å, c = 26.799(3) Å, and Z = 3. The new structure contains an infinite three-dimensional matrix that is built from B(7)O(14) building blocks rarely found in anhydrous borate compounds and LiO(n) (n = 4, 5), CsO(n) (n = 9, 10) polyhedra. The optical characterization of the compound indicates that the compound is phase matchable, and the UV cutoff edge is below 190 nm. IR spectroscopy, thermal analysis, and second-harmonic generation were also performed on the reported material.
一种新的非中心对称多硼酸盐 Li(4)Cs(3)B(7)-O(14)，通过常规的固态反应方法合成。它在三方晶系 P3(1)21(No.152)空间群中结晶，晶胞参数为 a = 6.9313(6) Å，c = 26.799(3) Å，Z = 3。新结构包含一个由 B(7)O(14)构筑块组成的无限三维矩阵，这些构筑块在无水硼酸盐化合物中很少见，同时还存在 LiO(n)(n = 4,5)和 CsO(n)(n = 9,10)多面体。该化合物的光学特性表明它是相位匹配的，紫外截止边缘低于 190nm。还对该材料进行了红外光谱、热分析和二次谐波产生的测试。
