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Rigid unit modes (RUMs) of distortion, local crystal chemistry and the inherent displacive flexibility of microporous AlPO4-11

Liu, Yun; Withers, Raymond


Electron diffraction is used to investigate the average structure of microporous AlPO4-11 as well as the zero-frequency rigid unit mode (RUM) modes of distortion of the ideal AlPO4-11 tetrahedral framework. Direct experimental evidence (in the form of a highly structured, characteristic diffuse intensity distribution) has been found for the (presumably dynamic) excitation of numerous zero-frequency RUM modes of distortion. The lattice dynamic program CRUSH is used to confirm the existence of...[Show more]

CollectionsANU Research Publications
Date published: 2003
Type: Journal article
Source: Journal of Solid State Chemistry
DOI: 10.1016/S0022-4596(03)00024-0


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