Acta Crystallographica Section C

Crystal Structure Communications

Volume 62, Part 1 (January 2006)

organic compounds

 

Hydrogen-bonded supramolecular structures of three related 4-(5-nitro-2-furyl)-1,4-dihydropyridines

A. Quesada, J. Argüello, J. A. Squella, J. L. Wardell, J. N. Low and C. Glidewell

Abstract: In ethyl 5-cyano-2,6-dimethyl-4-(5-nitro-2-furyl)-1,4-dihydropyridine-3-carboxylate, C₁₅H₁₅N₃O₅, the molecules are linked into chains by a single N-HO hydrogen bond. The molecules in diethyl 2,6-dimethyl-4-(5-nitro-2-furyl)-1,4-dihydropyridine-3,5-dicarboxylate, C₁₇H₂₀N₂O₇, are linked by a combination of one N-HO hydrogen bond and two C-HO hydrogen bonds into sheets built from equal numbers of R₂²(17) and R₄⁴(18) rings. In 2,6-dimethyl-4-(5-nitro-2-furyl)-1,4-dihydropyridine-3,5-dicarbonitrile, C₁₃H₁₀N₄O₃, the molecules are linked by a combination of a three-centre N-H(O)₂ hydrogen bond and two independent two-centre C-HO hydrogen bonds into complex sheets containing four types of ring.

Formula: C₁₅H₁₅N₃O₅, C₁₇H₂₀N₂O₇ and C₁₃H₁₀N₄O₃

	Structure factor file (CIF format) (164.9 kbytes) [ doi:10.1107/S0108270105037753/sk1887Isup2.hkl ] Contains datablock I
	Structure factor file (CIF format) (191.1 kbytes) [ doi:10.1107/S0108270105037753/sk1887IIsup3.hkl ] Contains datablock II
	Structure factor file (CIF format) (142.7 kbytes) [ doi:10.1107/S0108270105037753/sk1887IIIsup4.hkl ] Contains datablock III

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