Synthesis and characterization of a new microporous aluminophosphate [Al2P2O8][OCH2CH2NH3] with an open-framework analogous to AlPO4-D

✍ Scribed by Kaixue Wang; Jihong Yu; Guangshan Zhu; Yongchun Zou; Ruren Xu

• Publisher: Elsevier Science
• Year: 2000
• Tongue: English
• Weight: 131 KB
• Volume: 39
• Category: Article
• ISSN: 1387-1811
• DOI: 10.1016/s1387-1811(00)00207-9

✦ Synopsis

A new microporous aluminophosphate [Al 2 P 2 O 8 ][OCH 2 CH 2 NH 3 ], denoted APO-CJ3 (CJ3: China, Jilin University, number 3), has been prepared from aqueous as well as non-aqueous systems. The as-synthesized product is characterized by scanning electron microscopy, X-ray powder diraction, 27 Al and 31 P magic-angle-spinning NMR, thermogravimetric and dierential thermal analyses. The structure has been solved by single-crystal X-ray diraction analysis. APO-CJ3 crystallizes in the orthorhombic space group Pbca, with a 9X993(2) #

A, b 8X583(3) # A, c 19X705(4) # A and Z 8. The structure resembles microporous aluminophosphate AlPO 4 -D, and is featured by chains of four-membered rings that are connected by UDUD linkages. The compound contains two kinds of Al atoms, one is four-coordinated and the other is six-coordinated linking another six-coordinated Al atom by the linkages of bridging O atom of ethanolamine template. Upon removal of the template above 450°C, the structure of APO-CJ3 transforms to AlPO 4 -D.