Acta Crystallographica Section C

Crystal Structure Communications

Volume 61, Part 10 (October 2005)

organic compounds

sk1867 scheme

Acta Cryst. (2005). C61, o613-o616 [ doi:10.1107/S0108270105028799 ]

Three isomeric (E)-nitrobenzaldehyde nitrophenylhydrazones: chains of rings in isomorphous (E)-2-nitrobenzaldehyde 3-nitrophenylhydrazone and (E)-3-nitrobenzaldehyde 2-nitrophenylhydrazone, and centrosymmetric dimers in (E)-4-nitrobenzaldehyde 2-nitrophenylhydrazone

G. Ferguson, C. Glidewell, J. N. Low, J. M. S. Skakle and J. L. Wardell

Abstract: The isomeric compounds (E)-2-nitrobenzaldehyde 3-nitrophenylhydrazone and (E)-3-nitrobenzaldehyde 2-nitrophenylhydrazone, both C₁₃H₁₀N₄O₄, are isomorphous and effectively isostructural, and in both, the molecules are disordered across centres of inversion in the space group P2₁/c. The molecules are linked into complex chains of rings by N-HO and C-HO hydrogen bonds. In the isomeric compound (E)-4-nitrobenzaldehyde 2-nitrophenylhydrazone, the fully ordered molecules are linked by N-HO hydrogen bonds into centrosymmetric dimers.

Formula: Three isomers of C₁₃H₁₀N₄O₄


	Structure factor file (CIF format) (69.9 kbytes) Contains datablock I

	Structure factor file (CIF format) (69.9 kbytes) Contains datablock II

	Structure factor file (CIF format) (137.3 kbytes) Contains datablock III

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