Structure of an Unusual Aluminium Phosphate ([Al5P6O24H]2- 2[N(C2H5)3H]+ · 2H2O) JDF-20 with Large Elliptical Apertures
Structure of an Unusual Aluminium Phosphate ([Al5P6O24H]2- 2[N(C2H5)3H]+ · 2H2O) JDF-20 with Large Elliptical Apertures
复制标题
DOI：
10.1006/jssc.1993.1023
复制
发表时间：
1993
影响因子：
5.4
通讯作者：
Richard H. Jones;John Meurig Thomas;Jie‐Sheng Chen;Da Xu;Q. Huo;Shougui Li;Zhanguo Ma;A. Chippindale
中科院分区：
文献类型：
--
作者：
Richard H. Jones;John Meurig Thomas;Jie‐Sheng Chen;Da Xu;Q. Huo;Shougui Li;Zhanguo Ma;A. Chippindale
报道了一种新型大孔三维磷酸铝的结构和热性能。该化合物的P/Al比为6：5，结构由Al中心和P中心四面体组成，其中所有的Al顶点是共享的，但不是所有的P顶点，从而产生中断结构类型。骨架包含具有椭圆形孔的20元环，其自由直径为6.2 × 14.5 A，由较小的10元环和8元环取代。在这些通道中是水分子和三乙基铵阳离子，它们与骨架氢键合。该化合物的空间群为C2/c，a = 32.035（12），B = 14.308（3），c = 8.852（2）A，β = 104.65（2）°，V = 3925.6 A3。晶体结构已被细化，得到残差R = 0.126和Rw = 0.113。
The structure and thermal properties of a new large-pore three-dimensional aluminophosphate are reported. The P/Al ratio of this compound is 6:5, the structure consists of Al-centered and P-centered tetrahedra in which all the Al vertices are shared, but not all the P vertices, giving rise to an interrupted structure type. The framework contains 20-membered rings with elliptical apertures having a free diameter of 6.2 by 14.5 A intersected by smaller 10- and 8-membered rings. In these channels are water molecules and triethylammonium cations which are hydrogen bonded to the framework. The space group of the compound is C2/c, with a = 32.035(12), b = 14.308(3), c = 8.852(2) A, β = 104.65(2)°, and V = 3925.6 A3. The crystal structure has been refined to yield residuals of R = 0.126 and Rw = 0.113.