Laser investigation of molecular dynamic processes of the relaxational spectra formation

B. S. Neporent

doi:10.1117/12.57285

1 May 1991 Laser investigation of molecular dynamic processes of the relaxational spectra formation

B. S. Neporent

Proceedings Volume 1403, Laser Applications in Life Sciences; (1991) https://doi.org/10.1117/12.57285
Event: Laser Applications in Life Sciences, 1990, Moscow, Russian Federation

Abstract

in the so-called "configurational" vibronic spectra of complex polyatomic molecules in vapors and solutions,' the contours and widths L\v, being ruled by the Frank-Condon factors set, are practically independent on the solvent which only changes the frequency. These spectra obey the mirror symmetry rule (see Fig.1, upper-left part). The spectra of the other type, discovered later and named in Ref. 2 as "relaxational spectra", differ sharply from the usual "configurational" ones (see Fig. 1, upper-right part). Their widths v are proportional to the squared frequency of the band maximum Vm: Ev = Kv,, K roughly conserving its value constant for all the spectra of a given molecule both in vapors and solutions. The bandwidth changes in solution spectra are evidently due to a solvent induced dielectric shift of the frequency.

Citation Download Citation

B. S. Neporent "Laser investigation of molecular dynamic processes of the relaxational spectra formation", Proc. SPIE 1403, Laser Applications in Life Sciences, (1 May 1991); https://doi.org/10.1117/12.57285

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