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Crystal and Molecular Structures and Acid–Base Equilibria of N-(4-Chlorophenyl)-2-Benzoylethylamine and Bis[3-(o-Chlorophenyl)-1-Phenylaminopropyl]diazeneстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 22 апреля 2020 г.
- Авторы: Kovalchukova O.V., Stash A.I., Strashnova S.B., Polyanskaya N.A.
- Журнал: Crystallography Reports
- Том: 65
- Номер: 1
- Год издания: 2020
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 48
- Последняя страница: 52
- DOI: 10.1134/s1063774520010125
- Аннотация: N-(Phenyl)-2-benzoylethylamine (I), N-(4-chlorophenyl)-2-benzoylethylamine (II), and N-(2-chlorophenyl)-2-benzoylethylamine hydrazone (III) were synthesized in the crystalline state. The heating of ethanolic solutions of compound III at reflux gave dimeric bis[3-(о-chlorophenyl)-1-phenylaminopropyl]diazene (IV). The crystal and molecular structures of compounds II and IV were determined by X-ray diffraction. In the crystal of II, the molecules are packed in stacks in a head-to-head fashion stabilized by intermolecular hydrogen bonds involving carbonyl oxygen atoms and hydrogen atoms at nitrogen. Compound IV is composed of two independent bis[3-(о-chlorophenyl)-1-phenylaminopropyl]diazene molecules as structural units. Each structural unit is a centrosymmetric dimer. There are no hydrogen bonds in compound IV. Acid–base equilibrium reactions were studied by spectrophotometric titration. The protonation constants are 4.68 ± 0.14 for I and 4.11 ± 0.13 for II.
- Добавил в систему: Сташ Адам Игаркович