Structure

{
  "id": "MLC-T-CHM-013600",
  "term": "Structure",
  "field": "Chemistry",
  "definition": "The spatial arrangement of atoms or ions within a solid catalyst, particularly at its surface. This arrangement determines the geometry and availability of active sites where catalytic reactions occur. Reactions are classified as structure-sensitive if their rate depends on the specific crystal faces or surface defects exposed, whereas structure-insensitive reactions proceed at similar rates regardless of the surface topography.",
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "catalyst"
  ],
  "references": [
    "PAC, 1976, 46, 71. 'Manual of Symbols and Terminology for Physicochemical Quantities and Units - Appendix II. Definitions, Terminology and Symbols in Colloid and Surface Chemistry. Part II: Heterogeneous Catalysis' on page 79 (https://doi.org/10.1351/pac197646010071)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/structure/"
}