Acta Crystallographica Section C

Volume 65, Part 12 (December 2009)

organic compounds

sk3348 scheme

Acta Cryst. (2009). C65, o612-o614 [ doi:10.1107/S0108270109045168 ]

Two novel bis-azomethines derived from quinoxaline-2-carbaldehyde

D. Varghese, V. Arun, P. P. Robinson, M. Sebastian, P. Leeju, G. Varsha and K. K. M. Yusuff

Abstract: The Schiff base compounds N,N'-bis[(E)-quinoxalin-2-ylmethylidene]propane-1,3-diamine, C₂₁H₁₈N₆, (I), and N,N'-bis[(E)-quinoxalin-2-ylmethylidene]butane-1,4-diamine, C₂₂H₂₀N₆, (II), crystallize in the monoclinic crystal system. These molecules have crystallographically imposed symmetry. Compound (I) is located on a crystallographic twofold axis and (II) is located on an inversion centre. The molecular conformations of these crystal structures are stabilized by aromatic [pi] - [pi] stacking interactions.

Formula: C₂₁H₁₈N₆ and C₂₂H₂₀N₆


	Structure factor file (CIF format) (100.6 kbytes) [ doi:10.1107/S0108270109045168/sk3348Isup2.hkl ] Contains datablock I

	Structure factor file (CIF format) (102.7 kbytes) [ doi:10.1107/S0108270109045168/sk3348IIsup3.hkl ] Contains datablock II

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