TWO POLYMORPHIC MODIFICATIONS OF 1-(N-MORPHOLINIOMETHYL)SPIROBI(3-OXO-2,5-DIOXA-1-SILACYCLOPENTAN)ATE HYDRATE

Авторы

  • N. Erchak Department of Chemistry, Brest State University, Brest 224665 Department of Organic Chemistry, University of Podlasie, Siedlce 08-110
  • S. Belyakov Latvian Institute of Organic Synthesis, Riga LV 1006
  • I. Kalvinsh Latvian Institute of Organic Synthesis, Riga LV 1006
  • K. Pypowski Department of Organic Chemistry, University of Podlasie, Siedlce 08-110
  • E. Valbahs Latvian Institute of Organic Synthesis, Riga LV 1006
  • E. Lukevics Latvian Institute of Organic Synthesis, Riga LV 1006

DOI:

https://doi.org/10.1007/6592

Ключевые слова:

1-(N-morpholiniomethyl)spirobi(3-oxo-2, 5-dioxa-1-silacyclopentan)ate, crystal structure, polymorphism

Аннотация

The compound 1-(N-morpholiniomethyl)spirobi(3-oxo-2,5-dioxa-1-silacyclopentan)ate crystallizes from aqueous solution of γ-butyrolactone in the form of two crystal hydrate modifications: monoclinic (with  D = 1.53 g/cm3 , space group  P 21/n) and triclinic (D = 1.45 g/cm3 , space group  P 1). For monoclinic form the X-ray structural study at –100ºC has been performed. For both structures the coordination polyhedron of the silicon atom is a trigonal bipyramid.  In the crystal structures there are strong intermolecular hydrogen bonds of NH···O and OH···O types.

How to Cite
Erchak, N.; Belyakov, S.; Kalvinsh, I.; Pypowski, K.;Valbahs, E.;  Lukevics, E. Chem. Heterocycl. Compd. 2009, 45, 1419. [Khim. Geterotsikl. Soedin. 2009, 1419.]

For this article in the English edition see DOI 10.1007/s10593-009-0397-1

Загрузки

Опубликован

2022-02-14

Выпуск

№ 9 (2009)

Раздел

Оригинальные статьи