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. 2007 Dec 18;64(Pt 1):o275.
doi: 10.1107/S1600536807066305.

4-Hydroxy-2,2,6,6-tetra-methyl-piperidinium trifluoro-acetate

Yan-Xue Chen, Mei-Ling Han, Yi Deng, Jin-Hui Yang

4-Hydroxy-2,2,6,6-tetra-methyl-piperidinium trifluoro-acetate

Yan-Xue Chen et al. Acta Crystallogr Sect E Struct Rep Online. .

Abstract

The title compound, C(9)H(20)NO(+)·C(2)F(3)O(2) (-), is an important inter-mediate in the synthesis of hindered light stabilizers. The piperidinium ring adopts a chair conformation with the hydroxyl group in an equatorial position. The crystal packing is stabilized by O-H⋯O and N-H⋯O hydrogen bonds. The CF(3) group is disordered over two positions with almost equal site occupancy factors.

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Figures

Fig. 1.
Fig. 1.
A perspective view of the title compound. Displacement ellipsoids are drawn at the 30% probability level and H atoms are shown as small spheres of arbitrary radii. Only the major occupied site of the disordered CF3 group is shown.
See this image and copyright information in PMC

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