CIDNP
(Chemically Induced Dynamic Nuclear Polarization)
Non-Boltzmann nuclear spin state distribution produced in thermal or photochemical reactions, usually from
colligation
and
diffusion
, or
disproportionation
of
radical pairs
, and detected by
NMR
spectroscopy
by enhanced absorption or emission signals.
Source:
PAC, 1994,
66
, 1077
(Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994))
on page 1097
PAC, 1996,
68
, 2223
(Glossary of terms used in photochemistry (IUPAC Recommendations 1996))
on page 2232