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Abstract
The title compound, C19H16N4O2·0.425CH4O, crystallizes with two formula units per asymmetric unit. Researching its crystal structure constitutes part of a study of the nature of interactions between the N+—O− group and the vicinal NH group. The nitrone group and methanol solvent molecules are linked via four N—H⋯O and one O—H⋯O hydrogen bonds, with donor–acceptor distances of 2.603 (3)–2.730 (3) and 2.770 (3) Å, respectively. The crystal structure also involves two intermolecular N—H⋯N hydrogen bonds.
Highlights
Trzewik and Barbara ZaleskaFaculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Kraków, Poland
The title compound, C19H16N4O20.425CH4O, crystallizes with two formula units per asymmetric unit
For literature related to the synthesis of the title compound, see: Branco et al (1992); Aurich (1968); Guimanini et al
Summary
Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Kraków, Poland. Key indicators: single-crystal X-ray study; T = 293 K; mean (C–C) = 0.005 Å; disorder in solvent or counterion; R factor = 0.067; wR factor = 0.156; data-toparameter ratio = 14.1. The title compound, C19H16N4O20.425CH4O, crystallizes with two formula units per asymmetric unit. Researching its crystal structure constitutes part of a study of the nature of interactions between the N+—O group and the vicinal NH group. The nitrone group and methanol solvent molecules are linked via four N—H O and one O—H O hydrogen bonds, with donor–acceptor distances of 2.603 (3)–2.730 (3). The crystal structure involves two intermolecular N—H N hydrogen bonds
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