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合成所得的晶体属于空间群C_(2h)~6-C 2_1/c。晶胞参数a=20.264(?),b=17.209(?),c=10.548(?),β=103.603。2358个独立衍射数据由四圆单晶衍射仪进行收集,经诸项物理因子校正后,先由直接法得出所有钒原子的坐标参数。再由富里叶函数及差值电子密度函数导出全部非氢及氢原子的坐标。经若干轮块矩阵最小二乘法修正后,最终一致性因子R=0.065。结构分析表明:晶体中每个十钒酸的6个质子相应为三个乙二胺分子的6个N原子所俘获,从而成为全裸的十钒酸根;十钒酸根、乙二胺与结晶水之间则通过离子间作用力及氢键相联系。晶胞中所包含化学内容的确切成分为 4[V_(10)O_(28)]~(6-)·12[H_3~+NCH_2CH_2N~+H_3]·24H_2O
The resulting crystals belong to space group C 2h ~ 6-C 2_1 / c. Cell parameters a = 20.264 (?), B = 17.209 (?), C = 10.548 (?),? = 103.603.2358 independent diffraction data were collected by a four-circle single crystal diffractometer and corrected by various physical factors , First by direct method to get all the coordinates of vanadium atoms parameters. Then the coordinates of all non-hydrogen and hydrogen atoms are derived from the Fourier function and the difference electron density function. After some rounds of matrix least squares correction, the final consistency factor R = 0.065. Structural analysis shows that six protons of each of the decavanadic acids in the crystal are trapped by six N atoms of the three ethylenediamine molecules, respectively, thereby becoming fully-bare decavanadate; the decavanadate, ethylenediamine and water of crystallization Inter-ionic forces and hydrogen bonds are related. The exact composition of the chemical contents contained in the unit cell is 4 [V 10 O 28] ~ (6-) 12 [H 3 + NCH 2 CH 2 N + H 3] 24H 2 O