A new polymorph of 2-(2H-benzotriazol-2-yl)acetic acid
| Autor: | Guloy Alieva, Jamshid Ashurov, Nasir Mukhamedov, Nusrat Parpiev |
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| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: | |
| Zdroj: | Acta Crystallographica Section E, Vol 68, Iss 10, Pp o2833-o2833 (2012) |
| Druh dokumentu: | article |
| ISSN: | 16005368 1600-5368 |
| DOI: | 10.1107/S1600536812036768 |
| Popis: | A new polymorph of 2-(benzotriazol-2-yl)acetic acid, C8H7N3O2, crystallizes in the space group C2/c (Z = 8). The non-planar molecule has a synplanar conformation of the carboxy group. The crystal structure features helices parallel to the b axis sustained by O—H...N hydrogen bonding which are similar to those in the known polymorph [Giordano & Zagari (1978). J. Chem. Soc. Perkin Trans. 2, pp. 312–315]. However, in the title structure, columns are formed by π–π stacking interactions between benzotriazole fragments of centrosymmetrically related adjacent molecules [centroid-centroid distances = 3.593 (10) and 3.381 (10) Å] whereas π–π stacking interactions are not observed in the other polymorph. In the crystal of the title compound, C—H...O interactions are also observed. |
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