What is it about?
The phenomenon and definition of isostructurality are discussed. The definition of isostructurality deserves reconsideration regarding the aspects of symmetry, measure of similarity and formation of supramolecular interactions.
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Why is it important?
To fit the state of the art of crystallography based on the delineated arguments in the article the definition of isostructurality needs reconsideration.
Perspectives
Two crystals may be said to be isostructural, if they have similar chemical composition, the arrangement of the molecules in their crystal lattices are highly similar (subject of symmetry aspects, molecular conformation and molecular placement), their cell dimensions and variability in atomic coordinates do not exceed a given extent, as well as the systems of the supramolecular interactions match.
Petra Bombicz
HUN-REN Research Centre for Natural Sciences
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This page is a summary of: What is isostructurality? Questions on the definition, IUCrJ, January 2024, International Union of Crystallography,
DOI: 10.1107/s2052252523010436.
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