The method for determining frequencies of purely electronic molecular transitions from diffuse electronic absorption or emission spectra that is based on an adiabatic approximation and thermal equilibrium in the initial transition state is shown to be applicable to color centers and F-centers in crystals and glasses. The experimental results showed that the method can be used, in particular, to monitor the homogeneity of chromophores and, possibly, the media containing them.
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Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 86, No. 3, pp. 473–476, May–June, 2019.
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Tolkachev, V.A. Zero-Phonon Transition Frequency in Diffuse Electronic Spectra of Color Centers in Crystals and Glasses. J Appl Spectrosc 86, 504–507 (2019). https://doi.org/10.1007/s10812-019-00848-8
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DOI: https://doi.org/10.1007/s10812-019-00848-8