Electronic Resource
[S.l.]
:
International Union of Crystallography (IUCr)
Acta crystallographica
34 (1978), S. 329-336
ISSN:
1600-5724
Source:
Crystallography Journals Online : IUCR Backfile Archive 1948-2001
Topics:
Chemistry and Pharmacology
,
Geosciences
,
Physics
Notes:
Experiments with crystals of a KNCS. C12H24O6 complex show that the integrated intensities of reflections showing strong extinction can be raised to their expected kinematic values when the crystal is subjected to a temperature gradient. The intensity increases are accompanied by a broadening of the diffraction peaks and are reversible with no detectable hysteresis. These observations seem to be incompatible with the mosaic-crystal model. Local variations in the extinction behaviour have been detected by using a fine incident beam and suggest inhomogeneity of crystal texture. The intensity increases are probably connected with a reduction in the mean size of the perfect crystal domains, i.e. with a decrease of the mean spatial correlation length within the crystal.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1107/S0567739478000595
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