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Crystal structure of 4-carbamoylpyridinium chloride

Fellows, Simon M.; Prior, Timothy J.


Simon M. Fellows

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Dr Tim Prior
Senior Lecturer in Inorganic Chemistry


The hydro­chloride salt of isonicotinamide, C6H7N2O+·Cl-, has been synthesized from a dilute solution of hydro­chloric acid in aceto­nitrile. The compound displays monoclinic symmetry (space group C2/c) at 150 K, similar to the related hydro­chloride salt of nicotinamide. The asymmetric unit contains one protonated isonicotinamide mol­ecule and a chloride anion. An array of hydrogen-bonding inter­actions, including a peculiar bifurcated pyridinium-chloride inter­action, results in linear chains running almost perpendicularly in the [150] and [1-50] directions within the structure. A description of the hydrogen-bonding network and comparison with similar compounds are presented.


Fellows, S. M., & Prior, T. J. (2016). Crystal structure of 4-carbamoylpyridinium chloride. Acta Crystallographica Section E: Crystallographic Communications, 72(4), 436-439.

Journal Article Type Article
Acceptance Date Feb 26, 2016
Online Publication Date Mar 4, 2016
Publication Date 2016-04
Deposit Date Jul 8, 2021
Publicly Available Date Jul 9, 2021
Journal Acta Crystallographica Section E: Crystallographic Communications
Print ISSN 2056-9890
Electronic ISSN 2056-9890
Publisher International Union of Crystallography
Peer Reviewed Peer Reviewed
Volume 72
Issue 4
Pages 436-439
Keywords Crystal structure; Isonicotinamide; Hydro­chloride; Hydrogen bonding
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Published article (403 Kb)

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This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.

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