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Isotypic crystal structures of 2,6-di-bromo-N,N-bis-(4-nitro-phen-yl)aniline and 2,6-di-chloro-N,N-bis-(4-nitro-phen-yl)aniline.

ABSTRACT: In the mol-ecules of the two isotypic title compounds, C18H11Br2N3O4 (I) and C18H11Cl2N3O4 (II), the tri-phenyl-amine 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, mol-ecules are linked through C-H?O hydrogen bonds between phenyl rings and nitro groups and by X?O (X = Br, Cl) inter-actions, that are shorter than the sum of the van der Waals radii, leading to a three-dimensional network.

SUBMITTER: Kautny P

PROVIDER: S-EPMC4158496 | biostudies-literature | 2014 Aug

REPOSITORIES: biostudies-literature

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Isotypic crystal structures of 2,6-di-bromo-N,N-bis-(4-nitro-phen-yl)aniline and 2,6-di-chloro-N,N-bis-(4-nitro-phen-yl)aniline.

Kautny Paul P Fröhlich Johannes J Stöger Berthold B Weil Matthias M

Acta crystallographica. Section E, Structure reports online 20140719 Pt 8

In the mol-ecules of the two isotypic title compounds, C18H11Br2N3O4 (I) and C18H11Cl2N3O4 (II), the tri-phenyl-amine 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, mol-ecules are linked through C-H⋯O hydrogen bonds between phenyl rings and nitro groups and by X⋯O (X = Br, Cl) inter-actions, that are shorter t ...[more]

PMID: 25249856

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