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Article: New crystallography research from Howard University discussed.
- Article from:
- Journal of Technology
- Article date:
- November 10, 2009
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According to recent research from the United States, "The title compound, C12H15F2N2O+center dot C6H2N3O7-, a picrate salt of 4-[(E)-(2,4-difluorophenyl)(hydroxyimino)methyl]piperidine, crystallizes with two independent molecules in a cation - anion pair in the asymmetric unit. In the cation, a methyl group is trisubstituted by hydroxyimino, piperidin-4-yl and 2,4-difluorophenyl groups, the latter of which contains an F atom disordered over two positions in the ring [occupancy ratio 0.631 (4):0.369 (4)]."
"The mean plane of the hydroxy group is in a synclinical conformation nearly orthogonal [N-C-C-C = 72.44 (19)degrees] to the mean plane of the piperidine ring, ...