polymorph

https://doi.org/10.1351/goldbook.15225
Solid material that exists at least in two different molecular arrangements, i.e., distinctly different crystal species.
Notes:
  1. The differences between polymorphs disappear in solution or in the vapor phase.
  2. Solubility, melting point, density, crystal shape, crystal structure, and some other physical properties often differ from one polymorph to the other.
Source:
PAC, 2009, 81, 971. (Glossary of terms related to pharmaceutics (IUPAC Recommendations 2009)) on page 994 [Terms] [Paper]
Citation: 'polymorph' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.15225 RIS BibTex EndNote
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