Dimerization of Phthalate Ion in Non-Aqueous Solvents

Solutions of tetraethylammonium phthalate in non-aqueous solvents (ethanol, dimethylsulfoxide, dimethylformamide, and acetonitrile) were studied by electronic absorption spectroscopy. It was shown that the phthalate anion dimerizes in acetonitrile and dimethylformamide solutions due to π-stacking, t...

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Veröffentlicht in:	Russian journal of general chemistry 2021-05, Vol.91 (5), p.753-757
Hauptverfasser:	Nosov, V. G., Podryadrova, K. A., Vasilyeva, M. S., Bogachev, N. A., Skripkin, M. Yu, Mereshchenko, A. S.
Format:	Artikel
Sprache:	eng
Schlagworte:	Acetonitrile Anions Chemical equilibrium Chemistry Chemistry and Materials Science Chemistry/Food Science Dimerization Dimethylformamide Ethanol Phthalates Solvents
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Zusammenfassung:	Solutions of tetraethylammonium phthalate in non-aqueous solvents (ethanol, dimethylsulfoxide, dimethylformamide, and acetonitrile) were studied by electronic absorption spectroscopy. It was shown that the phthalate anion dimerizes in acetonitrile and dimethylformamide solutions due to π-stacking, the experimental equilibrium constants being 550±50 and 900±50, respectively. Dimerization of the phthalate anion was not observed in ethanol and dimethylsulfoxide solutions.
ISSN:	1070-3632 1608-3350
DOI:	10.1134/S1070363221050017