intercalation reaction

Also contains definition of: insertion reaction
https://doi.org/10.1351/goldbook.I03077
Reaction, generally reversible, that involves the penetration of a host material by guest species without causing a major structural modification of the host.
Notes:
  1. Intercalation can refer to the @[email protected] of a @[email protected] species into a one-, two- or three-dimensional host structure.
  2. The @[email protected] species is not distributed randomly but occupies positions predetermined by the structure of the host material.
  3. Examples of intercalation reactions are the @[email protected] of lithium into layered TiS2 [LixTiS2 (0 ≤ x ≤ 1)] and of potassium into the layers of @[email protected] (C8K).
Source:
PAC, 2007, 79, 1801. 'Definitions of terms relating to the structure and processing of sols, gels, networks, and inorganic-organic hybrid materials (IUPAC Recommendations 2007)' on page 1823 (https://doi.org/10.1351/pac200779101801)