−3 . The structure was solved from 5493 independent reflections and refined with 218 parameters yielded weighted residuals of 0.1243 and 0.0474 based on F 2 and values, respectively. This compound have a coordination number of caesium of 11, with Cs–O distances from 2.945(7) to 3.915(16) A. As and Se atoms form the individual tetrahedra with different H-bonding connectivity in this structure. AsO 4 –SeO
摘要 以CsHSeO 4 /Cs 3 H(SeO 4 ) 2 /H 3 AsO 4 (80.5%)的
水溶液合成了一种新化合物Cs 4 (SeO 4 )(HSeO 4 ) 2 (H 3 AsO 4 )。该化合物经X射线单晶分析表征,晶体数据如下:单斜晶系,空间群P 2 1 , a = 5.973(1) A, b = 13.691(3) A, c = 11.910(3) A β = 94.867(1)°。该化合物的晶胞体积为 970.39(4) A 3 ,每个晶胞有两个分子式单位,计算出的密度为 3.780 g cm -3 。该结构是从 5493 次独立反射中解出的,并使用 218 个参数进行了改进,分别基于 F 2 和值产生了 0.1243 和 0.0474 的加权残差。该化合物的
铯配位数为 11,Cs-O 距离为 2.945(7) 至 3.915(16) A。As 和 Se 原子在该结构中形成具有不同