β-Diketone interactions. Part 11. The hydrogen-bonded adduct 4, 6-dimethylpyrimidin-2-one·urea (DMP·U) from the reaction of pentane-2,4-dione and urea

Autor:	Lewina Y.Y. Ma, John Emsley, Majid Motevalli, Michael B. Hursthouse, S. A. Karaulov
Rok vydání:	1990
Předmět:	Pentane chemistry.chemical_compound Hydrogen Chemistry Hydrogen bond Stereochemistry X-ray crystallography Urea Molecule chemistry.chemical_element Crystal structure Medicinal chemistry Adduct
Zdroj:	J. Chem. Soc., Perkin Trans. 2. :1077-1080
ISSN:	1364-5471 0300-9580
Popis:	The X-ray crystal Structure of the adduct formed between 4,6-dimethylpyrimidin-2-one and urea (DMP·U) shoes a compact unit joined through two N–H ⋯ OC hydrogen bonds. One of these is remarkably short with RN ⋯ O 2.735 A(RH ⋯ O 1.705 A), and is believed to be among the shortest example of an NHO hydrogen bond between neutral molecules. Its hydrogen-bond energy, estimated from IR data, is ca. 75 kJ mol–1
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e849fea8ab0c653c49d6e027aff3bbcd https://doi.org/10.1039/p29900001077 Zobrazit plný text záznamu