The title compound, C 4 H 4 N 2 O 5 ÁH 2 O, was crystallized from both tetrahydrofuran and 1,4-dioxane solutions of alloxan as part of an experimental polymorph screen on alloxan.
Redetermination of 5,5-dihydroxybarbituric acid trihydrate (alloxan tetrahydrate)
✍ Scribed by Lewis, Thomas C. ;Tocher, Derek A.
- Book ID
- 104482537
- Publisher
- International Union of Crystallography
- Year
- 2004
- Tongue
- English
- Weight
- 329 KB
- Volume
- 60
- Category
- Article
- ISSN
- 1600-5368
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A single crystal ESR study of the title compound shows that the oxy radical R-O-is sIecCivety formed in one of the two OH groups attached to the same carbon atom. in relation to this observation, selective formation of radicals in some symmetrical molecules is discussed. ft is susested that a sIight
A low-temperature redetermination of the title compound, C 12 H 16 N 2 O 3 , more commonly known as hexobarbitone, is reported, with significantly improved precision. The crystal packing reveals an infinite hydrogen-bonded hexobarbitone chain linked by a single N-HÁ Á ÁO interaction, an extremely ra