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Absolute configuration, polarity, morphology and optical activity of α‐LiIO 3
Author(s) -
Yang H.g.,
Zhang D.f.,
Chen W.c.,
Li Y.y.
Publication year - 1989
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889888013007
Subject(s) - pyroelectricity , absolute configuration , polarity (international relations) , polarization (electrochemistry) , crystallography , piezoelectricity , chemistry , materials science , ferroelectricity , stereochemistry , optoelectronics , biochemistry , cell , dielectric , composite material
The absolute configuration of α‐LiIO 3 crystals has been reinvestigated. The redetermination of the absolute configuration is in agreement with a report by Stadnicka, Glazer & Moxon [ J. Appl. Cryst. (1985), 18 , 237–240]. Special attention should be paid to the selection of Bijvoet pairs in these and similar crystals. The signs of the piezoelectric and pyroelectric coefficients have been verified and correlated with the spontaneous polarization. The pyroelectric coefficient p 3 was −4.4 × 10 −5 C m −2 K −1 at 180 K. The correlation between the optical activity and the morphology of the crystals is discussed.