Isotypic crystal structures of 2,6-dibromo-N,N-bis(4-nitrophenyl)aniline and 2,6-dichloro-N,N-bis(4-nitrophenyl)aniline

Autor: Paul Kautny, Johannes Fröhlich, Berthold Stöger, Matthias Weil
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: Acta Crystallographica Section E, Vol 70, Iss 8, Pp 65-67 (2014)
Druh dokumentu: article
ISSN: 1600-5368
16005368
DOI: 10.1107/S1600536814010964
Popis: In the molecules of the two isotypic title compounds, C18H11Br2N3O4 (I) and C18H11Cl2N3O4 (II), the triphenylamine N atoms show no sign of pyramidalization, with marginal displacements of the N atoms from the mean plane of the three connecting C atoms: 0.0058 (13) Å for the Br compound (I) and 0.0074 (9) Å for the Cl compound (II). In the crystals, molecules are linked through C—H...O hydrogen bonds between phenyl rings and nitro groups and by X...O (X = Br, Cl) interactions, that are shorter than the sum of the van der Waals radii, leading to a three-dimensional network.
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