Difference between revisions of "Isostructural crystals"
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| − | + | <font color="blue">Cristaux isotructuraux</font> (''Fr''). <font color="red">Isotype Kristalle</font> (''Ge''). <font color="black">Cristalli isostrutturali</font> (''It''). <font color="purple">同形結晶</font> (''Ja''). <font color="green">Cristales isotípicos</font> (''Sp''). | |
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| − | <font color="blue">Cristaux isotructuraux</font> (''Fr''). < | ||
== Definition == | == Definition == | ||
Two crystals are said to be ''isostructural'' if they have the same structure, but not necessarily the same cell dimensions nor the same chemical composition, and with a 'comparable' variability in the atomic coordinates to that of the cell dimensions and chemical composition. For instance, calcite CaCO<sub>3</sub>, sodium nitrate NaNO<sub>3</sub> and iron borate FeBO<sub>3</sub> are isostructural. One also speaks of ''isostructural series'', or of ''isostructural polymorphs'' or ''isostructural phase transitions''. | Two crystals are said to be ''isostructural'' if they have the same structure, but not necessarily the same cell dimensions nor the same chemical composition, and with a 'comparable' variability in the atomic coordinates to that of the cell dimensions and chemical composition. For instance, calcite CaCO<sub>3</sub>, sodium nitrate NaNO<sub>3</sub> and iron borate FeBO<sub>3</sub> are isostructural. One also speaks of ''isostructural series'', or of ''isostructural polymorphs'' or ''isostructural phase transitions''. | ||
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| + | The term '''isotypic''' is synonymous with isostructural. | ||
=== See also === | === See also === | ||
| − | + | *Chapter 3.3 of ''International Tables for Crystallography, Volume D'' | |
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| + | [[Category:Crystal chemistry]] | ||
Latest revision as of 13:56, 26 March 2019
Cristaux isotructuraux (Fr). Isotype Kristalle (Ge). Cristalli isostrutturali (It). 同形結晶 (Ja). Cristales isotípicos (Sp).
Definition
Two crystals are said to be isostructural if they have the same structure, but not necessarily the same cell dimensions nor the same chemical composition, and with a 'comparable' variability in the atomic coordinates to that of the cell dimensions and chemical composition. For instance, calcite CaCO3, sodium nitrate NaNO3 and iron borate FeBO3 are isostructural. One also speaks of isostructural series, or of isostructural polymorphs or isostructural phase transitions.
The term isotypic is synonymous with isostructural.
See also
- Chapter 3.3 of International Tables for Crystallography, Volume D