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Concomitant Polymorphs
Author(s) -
Bernstein Joel,
Davey Roger J.,
Henck JanOlav
Publication year - 1999
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/(sici)1521-3773(19991203)38:23<3440::aid-anie3440>3.0.co;2-#
Subject(s) - chemistry
The simultaneous appearance of polymorphs of a substance has long been recognized but rarely noted or systematically studied. This phenomenon can be useful in the investigation of solid materials and in understanding the relative crystal energetics of polymorphic materials. This review covers the thermodynamic and kinetic factors that govern competitive and concomitant polymorphic crystallization. One of the many examples surveyed is a cyanine/oxonol complex, for which different relative molecular orientations in two of the many reported polymorphs are shown.