A new refinement of the orthorhombic polymorph of acetamide
✍ Scribed by Bats, Jan W. ;Haberecht, Monika C. ;Wagner, Matthias
- Publisher
- International Union of Crystallography
- Year
- 2003
- Tongue
- English
- Weight
- 339 KB
- Volume
- 59
- Category
- Article
- ISSN
- 1600-5368
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✦ Synopsis
Crystals of orthorhombic acetamide, C 2 H 5 NO, were obtained from a mixture of ethyl acetate and dilute ammonia. The previously reported structure [Hamilton (1965). Acta Cryst. 18, 866±870] was con®rmed, with two molecules in the asymmetric unit. The molecules are hydrogen bonded to form columns. Neighboring columns are connected by weak intermolecular CÐHÁ Á ÁO interactions.
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The title compound, C 6 H 12 O 6 , has been obtained from the ethanol fraction of the aerial part of the plant Incarvillea emodi (Wall. ex Royle) Chatterjee, after recrystallization from ethanol/ethyl acetate (60:40). Each molecule is involved in 12 hydrogen bonds, as has been found in other reporte
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Single-crystal X-ray study T = 293 K Mean (C-C) = 0.005 A R factor = 0.035 wR factor = 0.097 Data-to-parameter ratio = 15.3 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.