Acta Crystallographica Section C

Crystal Structure Communications

Volume 60, Part 1 (January 2004)

Acta Cryst. (2004). C60, o19-o23 [doi:10.1107/S0108270103025745]

Hydrogen-bonded chains of rings in 3-iodobenzaldehyde 2,4-dinitrophenylhydrazone and 4-iodobenzaldehyde 2,4-dinitrophenylhydrazone, and a three-dimensional framework in 4-iodobenzaldehyde 4-nitrophenylhydrazone generated by the combination of N-HO and C-HO hydrogen bonds with iodo-nitro interactions

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

Abstract: Molecules of 3- and 4-iodobenzaldehyde 2,4-dinitrophenylhydrazone, C₁₃H₉IN₄O₄, are both effectively planar. In the crystal structure of each compound, molecules are linked by a combination of N-HO and C-HO hydrogen bonds into complex chains of rings, containing four and three different ring motifs, respectively; neither compound contains any iodo-nitro interactions. In 3-iodobenzaldehyde 4-nitrophenylhydrazone, C₁₃H₁₀IN₃O₂, where the iodinated aryl ring is disordered over two sets of sites, the hydrogen bonds generate a chain of rings, while two independent IO interactions generate a three-dimensional framework.

Formula: C₁₃H₁₀IN₃O₂ and C₁₃H₉IN₄O₄

Online 6 December 2003


	Structure factor file (CIF format) (158.1 kbytes) Contains datablock I

	Structure factor file (CIF format) (151.0 kbytes) Contains datablock II

	Structure factor file (CIF format) (198.9 kbytes) Contains datablock III

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