Acta Crystallographica Section C

Crystal Structure Communications

Volume 63, Part 2 (February 2007)

organic compounds

 

Ethyl 4-hydroxy-2,6-diphenyl-5-(phenylsulfanyl)pyridine-3-carboxylate and ethyl 2,6-bis(4-fluorophenyl)-4-hydroxy-5-(4-methylphenylsulfanyl)pyridine-3-carboxylate: supramolecular aggregation through C-HO, C-HF and C-H interactions

J. Suresh, R. Suresh Kumar, S. Perumal, A. Mostad and S. Natarajan

Abstract: The title polysubstituted pyridines, ethyl 4-hydroxy-2,6-diphenyl-5-(phenylsulfanyl)pyridine-3-carboxylate, C₂₆H₂₁NO₃S, (I), and ethyl 2,6-bis(4-fluorophenyl)-4-hydroxy-5-(4-methylphenylsulfanyl)pyridine-3-carboxylate, C₂₇H₂₁F₂NO₃S, (II), adopt nearly planar structures. The crystal structure of (I) is stabilized by intermolecular C-HO and C-H interactions. The C-HO hydrogen bonds generate rings of motifs R₂²(14) and R₂²(20). The crystal structure of (II) is stabilized by intermolecular C-HF and C-H interactions. The C-HF bond generates a linear chain of motif C(14). In addition, in (I) and (II), intramolecular O-HO interactions generating a graph-set motif S(6) are found. No significant aryl-aryl or - interactions exist in these structures.

Formula: C₂₆H₂₁NO₃S and C₂₇H₂₁F₂NO₃S

	Structure factor file (CIF format) (255.5 kbytes) [ doi:10.1107/S0108270107000224/dn3034Isup2.hkl ] Contains datablock I
	Structure factor file (CIF format) (196.7 kbytes) [ doi:10.1107/S0108270107000224/dn3034IIsup3.hkl ] Contains datablock II

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