Preferred Label : radical pair;
Detailed label : radical pair (geminate pair);
IUPAC acronym : CIDNP;
IUPAC definition : The term is used to identify two radicals in close proximity in solution, within a
solvent cage. They may be formed simultaneously by some unimolecular process, e.g.
peroxide decomposition, or they may have come together by diffusion. While the radicals
are together, correlation of the unpaired electron spins of the two species cannot
be ignored: this correlation is responsible for the CIDNP phenomenon. A radical pair
is called geminate provided that each radical partner is a descendant of the same
parental pair.;
Origin ID : R05074;
See also
The term is used to identify two radicals in close proximity in solution, within a
solvent cage. They may be formed simultaneously by some unimolecular process, e.g.
peroxide decomposition, or they may have come together by diffusion. While the radicals
are together, correlation of the unpaired electron spins of the two species cannot
be ignored: this correlation is responsible for the CIDNP phenomenon. A radical pair
is called geminate provided that each radical partner is a descendant of the same
parental pair.
