Abstract
An analysis is given of the electron density distribution, dipole moment variation, and proton acceptor properties of unsubstituted rhodamine molecules in different electron states. It is shown that the electron density redistribution between the pyronine and benzoin parts of rhodamine may be large and strongly affect the molecular properties. In one of the electron transitions (S4) producing the third absorption band the proton acceptor power markedly increases, giving rise to a protonated form under suitable conditions.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 10, pp. 50–53, October, 1987.
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Artyukhov, V.Y. Electronic structure and properties of unsubstituted rhodamine in different electron states. Soviet Physics Journal 30, 850–853 (1987). https://doi.org/10.1007/BF00897252
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DOI: https://doi.org/10.1007/BF00897252