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Hydrogen-bonding patterns in 2-amino-4,6-dimethoxy­pyrimidine–4-amino­benzoic acid (1/1)

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

Publisher
International Union of Crystallography
Year
2006
Tongue
English
Weight
257 KB
Volume
62
Category
Article
ISSN
1600-5368

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✦ Synopsis

In the title cocrystal, C~6~H~9~N~3~O~2~·C~7~H~7~NO~2~, the 2-amino-4,6-dimethoxypyrimidine molecule interacts with the carboxyl group of the 4-aminobenzoic acid molecule through N—H...O and O—H...N hydrogen bonds, forming a cyclic hydrogen-bonded motif [R
~2~
^2^(8)]. This motif further self-organizes through N—H...O hydrogen bonds to generate an array of six hydrogen bonds with the rings having the graph-set notation R
~2~
^3^(6), R
~2~
^2^(8), R
~4~
^2^(8), R
~2~
^2^(8) and R
~2~
^3^(6). The 4-aminobenzoic acid molecules self-assemble via N—H...O hydrogen bonds to form a supramolecular chain along the c axis.

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