A new series of 3,5-diamino-1,2,4-triazolium(1+) inorganic salts and their potential in crystal engineering of novel NLO materials
作者:Irena Matulková、Jaroslav Cihelka、Michaela Pojarová、Karla Fejfarová、Michal Dušek、Přemysl Vaněk、Jan Kroupa、Radmila Krupková、Jan Fábry、Ivan Němec
DOI:10.1039/c2ce00024e
日期:——
(dat) with inorganic acids were prepared within our project focused on the crystal engineering of novel NLO materials and their X-ray structures were determined. Three triclinic compounds, dat(1+) selenate dihydrate, dat(1+) sulphate dihydrate and dat(1+) perchlorate, crystallize in the space group P. Three monoclinic structures of dat(1+) – i.e. nitrate, chloride hemihydrate and hydrogen phosphite crystallize
在我们的项目中,重点研究了新型NLO材料的晶体工程,制备了7,3,5-二氨基-1,2,4-三唑(dat)与无机酸的无机盐,并确定了它们的X射线结构。三种三斜晶化合物,date(1+)硒酸盐二水合物,dat(1+)硫酸盐二水合物和dat(1+)高氯酸盐在空间群P中结晶。dat(1+)的三个单斜晶结构,即硝酸盐,氯化物半水合物和亚磷酸氢盐在P 2 1 / c,P 2 1 / n和P 2 1 / c中结晶, 分别。最后,dat(1+)磷酸二氢盐最有前途的结构是正交晶的(空间群Fdd 2)。该结构由平行于ac平面的阴离子层和平行于c轴的阳离子链形成。标题化合物的FTIR和拉曼光谱已被记录和讨论。光谱的分配基于量子化学计算和因子组分析。对唯一的非中心对称的dat(1+)磷酸二氢盐在1064 nm处的二次谐波进行粉末定量测量,其相对效率等于KDP(即观察到磷酸二氢钾)。对单晶样品的后续研究使该材料的NLO张量系数得以估算。