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A monoclinic polymorph of theophylline
A monoclinic polymorph of theophylline, C(7)H(8)N(4)O(2), has been obtained from a chloroform/methanol mixture by evaporation under ambient conditions. The new polymorph crystallizes with two molecules in the asymmetric unit. The structure features intermolecular N—H⋯O hydrogen bonds, resulting i...
| Autores principales: | , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
International Union of Crystallography
2011
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3239002/ https://www.ncbi.nlm.nih.gov/pubmed/22199851 http://dx.doi.org/10.1107/S1600536811047532 |