insertion
-
A chemical reaction or transformation of the general type:
in which the connecting atom or group Y
replaces the bond joining the parts X
and Z
of the reactant XZ. An example is the carbene insertion reaction:
The reverse of an insertion is called an extrusion.
Source:
PAC, 1994, 66, 1077
(Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994))
on page 1125
-
A general term given to a reaction involving the transfer of a guest atom, ion or molecule into a host crystal lattice.
Source:
PAC, 1994, 66, 577
(Definitions of terms relating to phase transitions of the solid state (IUPAC Recommendations
1994))
on page 583