Acta Crystallographica Section E

Structure Reports Online

Volume 68, Part 12 (December 2012)

organic compounds

Acta Cryst. (2012). E68, o3415-o3416    [ doi:10.1107/S1600536812046338 ]

4,6-Dimeth­oxy-2-(methyl­sulfan­yl)pyrimidine-4-hy­droxy­benzoic acid (1/1)

K. Thanigaimani, A. Farhadikoutenaei, S. Arshad, I. A. Razak and K. Balasubramani

Abstract: The base mol­ecule of the title co-crystal, C7H10N2O2S·C7H6O3, is essentially planar, with a maximum deviation of 0.0806 (14) Å for all non-H atoms. The acid mol­ecule is also nearly planar, with a dihedral angle of 8.12 (14)° between the benzene ring and the carb­oxy group. In the crystal, the acid mol­ecules form an inversion dimer through a pair of O-H...O hydrogen bonds with an R22(8) ring motif. The pyrimidine mol­ecules are linked on both sides of the dimer into a heterotetra­mer via O-H...N and C-H...O hydrogen bonds with R22(8) ring motifs. The heterotetra­mers are further linked by weak C-H...O hydrogen bonds, forming a tape structure along [1-10].

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