Hydrogen bonding in C-substituted nitroanilines: molecular ladders in 2-trifluoromethyl-4-nitroaniline and sheets of R-4(4)(12) and R-4(4)(32) rings in 3-trifluoromethyl-4-nitroaniline

C Glidewell, J N Low, S A McWilliam, Jan Skakle, J L Wardell

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In 2-trifluoromethyl-4-nitroaniline, C7H5F3N2O2, (I), the molecules lie across a mirror plane in space group Pnma. The molecules are linked by paired N-H...O hydrogen bonds to form a C(8)[R-2(2)(6)] chain of rings, pairs of which are linked into a molecular ladder by a single C-H...O hydrogen bond. The isomeric 3-trifluoromethyl-4-nitroaniline, (II), has Z' = 2 in space group P2(1)/c. Each molecule is linked to four others by N-H...O hydrogen bonds to form sheets built from alternating R-4(4)(12) and R-4(4)(32) rings.

Original languageEnglish
Pages (from-to)o97-o99
Number of pages3
JournalActa Crystallographica Section C, Crystal Structure Communications
Issue number2
Publication statusPublished - Feb 2002



  • crystal

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