octahedra. The structure of Al[P2O3(OH)3](H2O) features a two-dimensional (2D) layered motif of Al[P2O3(OH)3]. Meanwhile, Al[(HPO3)(OH)(H2O)] has high porosity and relatively large channels, and has an excellent molecular sieve structure. Both Al[P2O3(OH)3](H2O) and Al[(HPO3)(OH)(H2O)] display deep ultraviolet (UV) cut-off edges of ∼195 nm and ∼193 nm. The three-dimensional (3D) structure of Al3P6O19
四种新的
亚磷酸盐/
磷酸盐,即Al[P 2 O 3 (OH) 3 ](H 2 O)、Al[(HPO 3 )(OH)(H 2 O)]、Ca[HPO 3 ]和Al 3 P 6 O 19.5,采用低温通量法设计合成。它们分别以P 6 3 mc、P、P 4 3 2 1 2 和P 6 3 / m空间群结晶。Al[P 2 O 3 (OH)的基本单元3 ](H 2 O)、Al[(HPO 3 )(OH)(H 2 O)]和Ca[HPO 3 ]由[PO 3 ] 3−或/和[AlO 6 ] 9−基团组成,而Al 3 P 6 O 19.5的结构由[PO 4 ] 3−四面体和[AlO 6 ] 9−八面体构建。Al[P 2 O 3 (OH) 3 ](H 2 O)的结构具有 Al[P 2 O 3 (OH)的二维 (2D) 层状图案3 ]。同时,Al[(HPO 3 )(OH)(H 2 O)]具有较高的孔隙率和较大的通道,并具有优异的
分子筛结构。Al[P