Казанский (Приволжский) федеральный университет, КФУ
КАЗАНСКИЙ
ФЕДЕРАЛЬНЫЙ УНИВЕРСИТЕТ
 
THE SECOND EXAMPLE OF DOUBLY ENANTIOPHOBIC BEHAVIOR DURING CRYSTALLIZATION: A DETAILED CRYSTALLOGRAPHIC, THERMOCHEMICAL AND SPECTROSCOPIC STUDY
Форма представленияСтатьи в зарубежных журналах и сборниках
Год публикации2021
Языканглийский
  • Курбангалиева Альмира Рафаэловна, автор
  • Лодочникова Ольга Александровна, автор
  • Герасимова Дарья , автор
  • Захарычев Дмитрий , автор
  • Сайфина Алина , автор
  • Файзуллин Роберт , автор
  • Библиографическое описание на языке оригинала Gerasimova, D. P. The second example of doubly enantiophobic behavior during crystallization: a detailed crystallographic, thermochemical and spectroscopic study / D. P. Gerasimova, A. F. Saifina, D. V. Zakharychev, R. R. Fayzullin, A. R. Kurbangalieva, O. A. Lodochnikova // CrystEngComm. – 2021. – V. 23, № 21. – Р. 3907–3918.
    Аннотация Herein we have found a second example of doubly enantiophobic behavior during the crystallization of rac-1-benzyl-3-chloro-4-[(4-chlorophenyl)sulfanyl]-5-hydroxy-1,5-dihydro-2H-pyrrol-2-one, i.e., the formation of two conglomerates with different crystal structures in the absence of any racemic compounds. In both polymorphic modifications, the main supramolecular motif is appeared to be a hydrogen-bonded chain or helix of different symmetry, which is related to an α-hydroxyamide chain synthon. Additional crosslinking of the homochiral chains in the crystals of both crystalline forms, which is realized through weak, noncovalent interactions, can be a probable reason for the reproducibility and stability of the α-hydroxyamide chain synthon and polymorphic diversity registered. It was shown that each of the conglomerates is thermodynamically stable in certain temperature ranges. For the first time, a binary phase diagram for the chiral system complicated by an enantiotropic phase transition is reconstructed based on experimental data, which is characterized by the presence of a thermodynamic stability permutation line between the two racemic conglomerates.
    Ключевые слова doubly enantiophobic behavior, 1,5-dihydro-2H-pyrrol-2-one, conglomerates
    Название журнала CRYSTENGCOMM
    URL http://pubs.rsc.org/en/content/articlelanding/2021/ce/d1ce00227a
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