S. Weiss et al., SIMULATION OF THE INFRARED-SPECTRUM OF ULTRAFAST INTERCONVERTING GEOMETRICAL-ISOMERS, Journal of physics. Condensed matter, 6, 1994, pp. 10000217-10000220
The effect of ultrafast interconversion of geometrical isomers on the
infrared spectrum was obtained through molecular dynamics simulation.
Arresting the interconversion by introduction of a very high barrier a
llowed exchange broadening in the absence of that barrier to be convin
cingly demonstrated, The spectra obtained could all be fitted very wel
l with Bloch lineshapes and the lifetimes extracted in this way agreed
well with those obtained directly from the simulation except in those
cases where the interconversion rate was too slow or too fast.