Acta Crystallographica Section C

Crystal Structure Communications

Volume 61, Part 1 (January 2005)

organic compounds

sk1795 scheme

Acta Cryst. (2005). C61, o53-o56 [doi:10.1107/S0108270104030719]

-Stacked hydrogen-bonded sheets in N,N'-bis(4-nitrobenzylidene)ethane-1,2-diamine and -stacked hydrogen-bonded chains in N,N'-bis(4-nitrobenzylidene)propane-1,3-diamine

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

Abstract: Molecules of N,N'-bis(4-nitrobenzylidene)ethane-1,2-diamine, C₁₆H₁₄N₄O₄, (I), lie across centres of inversion in space group P2₁/n and are linked into (10 $\overline 1$ ) sheets by a single C-HO hydrogen bond [HO = 2.40 Å, CO = 3.2166 (13) Å and C-HO = 146°]; these sheets are linked into a three-dimensional array by a single aromatic [bold pi] - stacking interaction. Molecules of N,N'-bis(4-nitrobenzylidene)propane-1,3-diamine, C₁₇H₁₆N₄O₄, (II), lie across twofold rotation axes in space group C2/c and are linked into chains of spiro-fused rings by a single C-HO hydrogen bond [HO = 2.54 Å, CO = 3.267 (2) Å and C-HO = 130°]; these chains are linked into sheets by a single aromatic [bold pi] - stacking interaction.

Formula: C₁₆H₁₄N₄O₄ and C₁₇H₁₆N₄O₄


	Structure factor file (CIF format) (133.4 kbytes) Contains datablock I

	Structure factor file (CIF format) (90.1 kbytes) Contains datablock II

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