Acidic properties of N-hetarylacetic acids and inductive constants of N-hetaryl substituents; Chemistry of Heterocyclic Compounds; Vol. 19, iss. 3
| Parent link: | Chemistry of Heterocyclic Compounds Vol. 19, iss. 3.— 1983.— [P. 300-303] |
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| Outros Autores: | , , , |
| Resumo: | Title screen The inductive constants of the corresponding heterocyclic fragments were calculated on the basis of data on the pKa values obtained by potentiometric titration of derivatives of indole, carbazole, 3-methylcarbazole, tetrahydrocarbazole, 6-methyltetrahydrocarbazole, and phenothiazine. The σRoconstant of the 9-carbazolyl group was also calculated. The enthalpy and entropy of acidic dissociation were calculated from data on the effect of the temperature on the pKa of 9-carbazolylacetic acid. It is shown that the entropy contribution to the free energy of dissociation of 9-carbazolylacetic acid predominates. Режим доступа: по договору с организацией-держателем ресурса |
| Idioma: | inglês |
| Publicado em: |
1983
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| Assuntos: | |
| Acesso em linha: | http://dx.doi.org/10.1007/BF00513265 |
| Formato: | Recurso Eletrônico Capítulo de Livro |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=654464 |