Crystal solvates and polymorphs of N-(3-methylthio-1,2,4-thiadiazol-5-yl-aminocarbonylmethyl)cytisine
Autor: | K. K. Turgunov, B. Tashkhodjave, Kh. M. Shakhidoyatov, A. G. Tojiboev, T. F. Ibragimov, U. S. Makhmudov, V. A. Saprykina |
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Rok vydání: | 2008 |
Předmět: | |
Zdroj: | Journal of Inclusion Phenomena and Macrocyclic Chemistry. 61:71-76 |
ISSN: | 1573-1111 0923-0750 |
Popis: | A polymorphs, crystallohydrate and crystallosolvates of N-(3-methylthio-1,2,4-thiadiazol-5-yl-aminocarbonylmethyl)cytisine, C16H19N5O2S2, with chloroform, methanol, benzene have been obtained and crystal structures have been determined by the method of single crystal X-ray diffraction. In the investigated crystals N-(3-methylthio-1,2,4-thiadiazol-5-yl-aminocarbonylmethyl)cytisine have taken four types of conformation due to intra-molecular rotations around N–C and C–C bonds. So free rotations in the molecule assisted in formation a different crystallosolvates and polymorphs depending on nature of solvents. The thermal decomposition of the hydrate and methanol solvated crystals was studied by means of a TG-DSC. |
Databáze: | OpenAIRE |
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