Acta Crystallographica Section C

Crystal Structure Communications

Volume 68, Part 9 (September 2012)

organic compounds

yf3016 scheme

Acta Cryst. (2012). C68, o365-o368    [ doi:10.1107/S0108270112035901 ]

2-Ethyl-6-methyl­pyridin-3-ol and its salt bis­(2-ethyl-3-hy­droxy-6-methyl­pyridinium) succinate

A. S. Lyakhov, L. S. Ivashkevich, V. L. Survilo, A. M. Kipnis and T. V. Trukhachova

Abstract: The title compounds, C8H11NO, (I), and 2C8H12NO+·C4H4O42-, (II), both crystallize in the monoclinic space group P21/c. In the crystal structure of (I), inter­molecular O-H...N hydrogen bonds combine the mol­ecules into polymeric chains extending along the c axis. The chains are linked by C-H...[pi] inter­actions between the methyl­ene H atoms and the pyridine rings into polymeric layers parallel to the ac plane. In the crystal structure of (II), the succinate anion lies on an inversion centre. Its carboxyl­ate groups inter­act with the 2-ethyl-3-hy­droxy-6-methyl­pyridinium cations via inter­mole­cular N-H...O hydrogen bonds with the pyridine ring H atoms and O-H...O hydrogen bonds with the hydroxy H atoms to form polymeric chains, which extend along the [\overline{1}01] direction and comprise R44(18) hydrogen-bonded ring motifs. These chains are linked to form a three-dimensional network through nonclassical C-H...O hydrogen bonds between the pyridine ring H atoms and the hydroxy-group O atoms of neighbouring cations. [pi]-[pi] inter­actions between the pyridine rings and C-H...[pi] inter­actions between the methyl­ene H atoms of the succinate anion and the pyridine rings are also present in this network.

Formula: C8H11NO and 2C8H12NO+·C4H4O42-

hkldisplay filedownload file

Structure factor file (CIF format) (89.3 kbytes)
[ doi:10.1107/S0108270112035901/yf3016Isup2.hkl ]
Contains datablock I

hkldisplay filedownload file

Structure factor file (CIF format) (112.8 kbytes)
[ doi:10.1107/S0108270112035901/yf3016IIsup3.hkl ]
Contains datablock II


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