Conclusions
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1.
During the interaction of aminobenzoic acids with HCl, KI, KBr, KCl, and KOH, unstable coordination compounds form in the solution; the coordinating particles are these latter molecules, rather than ions, and the π-electron system of the aminobenzoic acids participates in this interaction.
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2.
The oscillator strength of the S→ S* transition decreases when the molecule acts as a π-electron donor in an interaction and increases when this molecule acts as an acceptor.
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Literature cited
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 1, pp. 141–143, January, 1971.
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Lebedenko, R.S., Fofonova, R.M. Interaction of aminobenzoic acids with mineral salts, an acid, and a base. Soviet Physics Journal 14, 117–119 (1971). https://doi.org/10.1007/BF00819877
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DOI: https://doi.org/10.1007/BF00819877