Compounds containing layers of composition [(SbIIIF)XO4] (X = P, As). Crystal structures of Na(SbF)PO4 · 1.5H2O, Na(SbF)AsO4, NH4(SbF)PO4 · H2O, and NH4(SbF)AsO4 · 3H2O
作者:Klaus Holz、Frank Obst、Rainer Mattes
DOI:10.1016/0022-4596(91)90152-8
日期:1991.2
stacking of the layers and the interlayer distance depend on the cations and the number of intercalated water molecules. In Na(SbF)AsO4 the Na+ ion is coordinated by only two oxygen atoms within 300 pm. Crystal data: Na(SbF)PO4 · 5H2O, monoclinic, P21m, a = 656.2(5), b = 654.1(5), c = 867.9(3) pm, β = 92.43(1)°, 889 reflections, 81 parameters, R = 0.044, Rw = 0.046. NH4(SbF)PO4 · H2O, tetragonal, I4m
标题化合物已通过SbF 3与磷酸二氢盐或砷酸氢盐的反应在水中制备,并通过单晶X射线分析,IR,拉曼光谱和穆斯堡尔光谱法进行了表征。它们具有相同的层结构。组成[(SbF)X O 4 ] -(X = P,As)的层是通过在X O 4四面体和SbFO 4伪八面体之间共享四个角而形成的。末端SbF键的长度(与反式中的孤对-位)和SbO键分别为192和219 pm。层的堆叠和层间距离取决于阳离子和插入的水分子的数量。在Na(SbF)AsO 4中,Na +离子在300 pm内仅由两个氧原子配位。晶体数据:Na(SbF)PO 4 ·5H 2 O,单斜晶系,P21m,a = 656.2(5),b = 654.1(5),c = 867.9(3)pm,β= 92.43(1)°,889次反射,81个参数,R = 0.044,R w = 0.046。NH 4(SbF)PO 4 ·H 2 O,四方,I4m,a =