Preferred Label : predissociation;
IUPAC definition : Dissociation occurring by tunnelling from a 'bound' to an 'unbound' vibronic state.
In an absorption spectrum of a molecular entity, the appearance of a diffuse band
region within a series of sharp bands is called predissociation, since irradiation
with frequencies within the diffuse region leads to effective dissociation. The energy
of the band is smaller than that of the dissociation continuum of the bound state.;
Origin ID : P04808;
See also
Dissociation occurring by tunnelling from a 'bound' to an 'unbound' vibronic state.
In an absorption spectrum of a molecular entity, the appearance of a diffuse band
region within a series of sharp bands is called predissociation, since irradiation
with frequencies within the diffuse region leads to effective dissociation. The energy
of the band is smaller than that of the dissociation continuum of the bound state.
