l-Tryptophan 4-nitrophenol trisolvate
| Autor: | E. de Matos Gomes, M. Belsley, V. H. Rodrigues, M. M. R. R. Costa |
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| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: | |
| Zdroj: | Acta Crystallographica Section E, Vol 68, Iss 3, Pp o920-o920 (2012) |
| Druh dokumentu: | article |
| ISSN: | 16005368 1600-5368 |
| DOI: | 10.1107/S1600536812007817 |
| Popis: | The title compound, C11H12N2O2·3C6H5NO3, comprises a zwitterionic amino acid formed by two nearly planar groups: (i) the indole ring and Cβ, and (ii) the carboxyl group, Cα, as well as the amine N atom, with r.m.s. deviations of 0.0084 and 0.0038 Å, respectively. The angle between these idealized planes is 39.47 (9)°. The amine group of the amino acid is in a syn (−sc) arrangement relative to the ring system. The overall crystal structure results from the packing of sheets parallel to the (001) planes. These sheets are formed by a pair of screw axis related parallel networks bound by hydrogen-bond and π–π stacking interactions. The intermolecular cohesion of all organic residues in each of the latter two-dimensional networks is achieved via strong hydrogen bonding, nitro–π and π–π stacking interactions. |
| Databáze: | Directory of Open Access Journals |
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