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. 2022 Aug 16;7(Pt 8):x220804.
doi: 10.1107/S2414314622008045. eCollection 2022 Aug.

N-(2,3,5,6-Tetrafluoropyridin-4-yl)formamide

Bailey D Newell  1 , Colin D McMillen  2 , John P Lee  1
Affiliations

N-(2,3,5,6-Tetrafluoropyridin-4-yl)formamide

Bailey D Newell et al. IUCrdata. .

Abstract

The title compound, C6H2F4N2O, displays amide bond lengths of 1.218 (3) Å and 1.366 (3) Å for the C=O and C-N bonds, respectively. The Cp-N-C-O (p = pyridine) torsion angle of 179.0 (2)° indicates an anti-conformation for the grouping. Inter-molecular hydrogen bonding is observed between the amine N-H group and the carbonyl O atom, which generates chains of mol-ecules propagating along the b-axis direction.

Keywords: amide bond; crystal structure; formamide; hydrogen bonding; perfluorinated pyridine.

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Figures

Figure 1
Figure 1
Displacement ellipsoid perspective view (50% probability) for the title structure showing the atom-numbering scheme.
Figure 2
Figure 2
Inter­molecular hydrogen bonding forming a chain propagating along the b-axis direction where hydrogen bonds are represented with dashed lines.
Figure 3
Figure 3
Extended structure as viewed looking down the b-axis showing the L-shape that is formed by the orthogonal pyridine rings of neighboring chains.
See this image and copyright information in PMC

References

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