Вид документа : Статья из журнала Шифр издания : 54/S 89 Автор(ы) : Slepukhin P. A., Gruzdev D.A., Chulakov E.N., Levit G. L., Krasnov V. P., Charushin V. N. Заглавие : Structures of the racemate and (S)-enantiomer of 7,8-difluoro-3-methyl-2,3-dihydro-4H-[1,4]benzoxazine Место публикации : Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2011. - Vol.60, №5. - С. 955-960 Примечания : Bibliogr. : p. 960 (17 ref.) ББК : 54 Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ Ключевые слова (''Своб.индексиров.''): enantiomers --racemates--organofluorine compounds Аннотация: The comparative X ray diffraction study of racemic and (S) enantiomer of 7,8 difluoro 3 methyl 2,3 dihydro 4H [1,4]benzoxazine was carried out. The both forms of benzoxazine are crystallized in the orthorhombic crystal system, the (S) enantiomer is crystallized in the chiral space group P212121, while the racemate is crystallized in the centrosymmetric Pbca space group. The bond lengths and bond and torsional angles in the both molecules are almost equal. The packing of the racemate is characterized by a closer interaction of polar NH...О groups. Доп.точки доступа: Slepukhin, P. A.; Gruzdev, D.A.; Chulakov, E.N.; Levit, G. L.; Левит Галина Львовна; Krasnov, V. P.; Charushin, V. N.