Hydrogen-bonded supramolecular motifs in trimethoprim–terephthalate–terephthalic acid (2/1/1)
✍ Scribed by Hemamalini, Madhukar ;Muthiah, Packianathan Thomas ;Bocelli, Gabriele ;Cantoni, Andrea
- Publisher
- International Union of Crystallography
- Year
- 2002
- Tongue
- English
- Weight
- 331 KB
- Volume
- 59
- Category
- Article
- ISSN
- 1600-5368
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📜 SIMILAR VOLUMES
The title compound, C 11 H 8 N 2 , contains two essentially planar molecules (A and B) in the asymmetric unit. Molecules of type B exhibit %±% stacking and form in®nite zigzag chains along the a axis. A and B molecules are linked by N amine ÐHÁ Á ÁN imine hydrogen bonds and form polymeric ±A±B±A±B±
The title compound, C 11 H 11 NO 3 , a condensation product of lalanine and ortho-phthalaldehyde, crystallizes in space group P2 1 2 1 2 1 . Intermolecular OÐHÁ Á ÁO C and CÐHÁ Á ÁO hydrogen bonds are present with OÁ Á ÁO and CÁ Á ÁO distances of 2.623 (3) and 3.338 (4) A Ê , respectively.
Single-crystal X-ray study T = 291 K Mean '(C±C) = 0.005 A Ê R factor = 0.034 wR factor = 0.080 Data-to-parameter ratio = 12.4 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.