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A 3D 12‐Ring Zeolite with Ordered 4‐Ring Vacancies Occupied by (H2O)2 Dimers
Authors:Dr Jie Liang  Dr Jie Su  Prof Yingxia Wang  Yanping Chen  Prof Xiaodong Zou  Fuhui Liao  Prof Jianhua Lin  Prof Junliang Sun
Institution:1. College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (P. R. China);2. Berzelii Center EXSELENT on Porous Materials, Department of Materials and Environmental Chemistry, Stockholm University, Stockholm 10691 (Sweden)
Abstract:A germanate zeolite, PKU‐14, with a three‐ dimensional large‐pore channel system was structurally characterized by a combination of high‐resolution powder X‐ray diffraction, rotation electron diffraction, NMR, and IR spectroscopy. Ordered Ge4O4 vacancies inside the 46.612] cages has been found in PKU‐14, in which a unique (H2O)2 dimer was located at the vacancies and played a structure‐directing role. It is the first time that water clusters are found to be templates for ordered framework vacancies.
Keywords:electron microscopy  porous materials  structure elucidation  zeolite analogues  X‐ray diffraction
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