reconstructive transition

https://doi.org/10.1351/goldbook.R05205
A transition which involves a major reorganization of the crystal structure and a change of local topology, during which primary bonds are broken and reformed so that there is no immediate relationship between the crystal structures of the parent and product phases.
Examples:
  1. The transition of $\ce{Mg2SiO4}$ (olivine) to $\ce{Mg2SiO4}$ (spinel)
  2. The transition of diamond to graphite.
Source:
PAC, 1994, 66, 577. (Definitions of terms relating to phase transitions of the solid state (IUPAC Recommendations 1994)) on page 589 [Terms] [Paper]
Citation: 'reconstructive transition' 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.R05205 RIS BibTex EndNote
Div. IIPDFTextXMLJSON