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Determination of the Gyration Tensor Components of Ammonium Rochelle Salt
Author(s) -
Brożek Z.,
Stadnicka K.,
Lingard R. J.,
Glazer A. M.
Publication year - 1995
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/s0021889894009222
Subject(s) - gyration , polarimeter , tetrahydrate , birefringence , wavelength , optical rotatory dispersion , dispersion (optics) , materials science , tensor (intrinsic definition) , chemistry , analytical chemistry (journal) , optics , crystallography , physics , chromatography , circular dichroism , polarimetry , crystal structure , mathematics , optoelectronics , pure mathematics , scattering , geometry
The absolute optical chirality of sodium ammonium (+)‐tartrate tetrahydrate crystals has been determined. The wavelength dispersion of the linear birefringence and the optical gyration tensor components were found at room temperature with the use of a high‐accuracy universal polarimeter. The wavelength dispersion of the gyration is presented over the range 350–650 nm. The gyration coefficients at a wavelength of 500 nm were found to be g 11 = 12.5 × 10 −6 , g 22 = −36.0 × 10 −6 and g 33 = 6.7 × 10 −6 . The results of the present work are in good agreement with values inferred by Koralewski & Szafrański [ Ferroelectrics (1988), 80 , 269–272].