title: An aluminophosphate molecular sieve with 36 crystallographically distinct tetrahedral sites.
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.
authors.affiliation: Center for Ordered Nanoporous Materials Synthesis, School of Environmental Science and Engineering and Department of Chemical Engineering, POSTECH, Pohang 790-784 (Korea).
authors.forename: Jun Kyu
authors.initials: JK
authors.lastname: Lee
authors.forename: Alessandro
authors.initials: A
authors.lastname: Turrina
authors.forename: Liangkui
authors.initials: L
authors.lastname: Zhu
authors.forename: Seungwan
authors.initials: S
authors.lastname: Seo
authors.forename: Daliang
authors.initials: D
authors.lastname: Zhang
authors.forename: Paul A
authors.initials: PA
authors.lastname: Cox
authors.forename: Paul A
authors.initials: PA
authors.lastname: Wright
authors.forename: Shilun
authors.initials: S
authors.lastname: Qiu
authors.forename: Suk Bong
authors.initials: SB
authors.lastname: Hong
mesh_terms: D017607:Aluminum Compounds / Q000737:chemistry*; D003198:Computer Simulation; D003461:Crystallography / Q000379:methods*; D010710:Phosphates / Q000737:chemistry*; D033362:Powder Diffraction
chemical_list: D017607:Aluminum Compounds; D010710:Phosphates; C012714:aluminum phosphate
keywords: aluminophosphates; microporous materials; structure elucidation; tetrahedral sites; zeolites