Title: An Aluminophosphate Molecular Sieve with 36 Crystallographically Distinct Tetrahedral Sites
Authors: Jun Kyu Lee, Alessandro Turrina, Liangkui Zhu, Seungwan Seo, Daliang Zhang, Paul A. Cox, Paul A. Wright, Shilun Qiu, and Suk Bong Hong
Journal: Angewandte Chemie
Abstract: The structure of the new medium-pore aluminophosphate molecular sieve PST-6 is determined by the combined use of rotation electron diffraction tomography, synchrotron X-ray powder diffraction, and computer modeling. PST-6 was prepared by calcination of another new aluminophosphate material with an unknown structure synthesized using diethylamine as a structure-directing agent, which is thought to contain bridging hydroxy groups. PST-6 has 36 crystallographically distinct tetrahedral sites in the asymmetric unit and is thus crystallographically the most complex zeolitic structure ever solved.