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在水热的条件下合成了多钒硼酸盐(enH2)4Na4H3[(VO)12O6B18O42]8H2O, 化学式为C8H59B18N8Na4O68V12 (Mr=2253.45), 用单晶X射线衍射方法测定了它的结构, 该晶体属单斜晶系, P21/n空间群, 晶胞参数为a = 13.8989(4), b = 16.1954(5), c = 14.4520(4) ?β = 94.7490(5), V= 3241.95(16) ?, Z = 2, Dc = 2.308 g/cm3, ?= 1.819mm-1, F(000) = 2234, 4798个可观察衍射点(I > 2s(I)), 最终结构精修到偏离因子R = 0.0449, wR = 0.1163, S = 0.996。在该化合物的结构中, V12B18簇是由环状的B18O42通过18个B(μ3-O)V键被2个V6O18环夹在中间组成的, V12B18簇通过4个Na+与相邻的簇相连, 形成二维网状结构, 孔道尺寸为6.109×10.562 拧?
The poly vanadate (enH2) 4Na4H3 [(VO) 12O6B18O42] 8H2O was synthesized under hydrothermal conditions with a chemical formula of C8H59B18N8Na4O68V12 (Mr = 2253.45). Its structure was determined by single crystal X-ray diffraction Monoclinic and P21 / n space group with unit cell parameters of a = 13.8989 (4), b = 16.1954 (5) and c = 14.4520 (4), β = 94.7490 (5) and V = 3241.95 , Z = 2, Dc = 2.308 g / cm3,? = 1.819mm-1, F (000) = 2234 and 4798 observable diffraction points (I> 2s (I)). The final structure was refined to a deviation factor of R = 0.0449, wR = 0.1163, S = 0.996. In the structure of the compound, the V12B18 cluster is composed of a ring of B18O42 by 18 B (μ3-O) V bonds sandwiched by two V6O18 rings, the V12B18 cluster is connected to adjacent clusters by four Na + Formation of two-dimensional network structure, pore size of 6.109 × 10.562 twist?