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Hydrogen-bonding patterns in the cocrystal 2,4-diamino-6-phenyl-1,3,5-triazine–sorbic acid (1/1)

✍ Scribed by Thanigaimani, Kaliyaperumal ;Muthiah, Packianathan Thomas ;Lynch, Daniel E.

Publisher
International Union of Crystallography
Year
2007
Tongue
English
Weight
455 KB
Volume
63
Category
Article
ISSN
1600-5368

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✦ Synopsis

In the title cocrystal, C~9~H~9~N~5~·C~6~H~8~O~2~, the asymmetric unit contains one 2,4-diamino-6-phenyl-1,3,5-triazine molecule and a sorbic acid molecule. The triazine molecules are base-paired [with a graph set of R
~2~
^2^(8)] on either side via N—H...N hydrogen bonds, forming a supramolecular ribbon along the c axis. Each triazine molecule interacts with the carboxyl group of a sorbic acid molecule via N—H...O and O—H...N hydrogen bonds, generating R
~2~
^2^(8) motifs. The supramolecular ribbons are interlinked by N—H...O hydrogen bonds involving the 2-amino group of the triazine molecules and the carboxyl O atom of the sorbic acid molecule.

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## Abstract Crystal structures of 2,4,6‐tris(2‐halophenoxy)‐1,3,5‐triazines (halo = fluoro, chloro, bromo, iodo; 2‐XPOT) are discussed in the background of 3‐halophenoxy (3‐XPOT) and 4‐halophenoxy (4‐XPOT) structures. Among inter‐halogen interactions, the electrostatic L‐shaped type II interactions