CRYSTAL STRUCTURE OF TWO IONIC SPARFLOXACIN COMPOUNDS
A. D. Vasiliev1,2, N. N. Golovnev1
1Siberian Federal University, Krasnoyarsk, Russia
2Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russia
Keywords: кристаллическая структура, катион спарфлоксациниума, ПЂ-ПЂ-взаимодействие, тетрагалогенид-анионы цинка и кадмия, crystal structure, sparfloxacindi-ium cation, zinc and cadmium tetrahalide anions, hydrogen bonds, ПЂ-ПЂ interaction
Abstract
The structure of two new ionic compounds of sparfloxacin (C
19H
22F
2N
4O
3, SfH), SfH
3[ZnCl
4]×1.5H
2O (I) and SfH
3[CdBr
4]×H
2O (II), is determined. Crystallographic data are as follows: for I a = 14.505(3) Å, b = 12.615(3) Å, c = 29.118(7) Å, V = 5254(4)Å
3, space group Pbca , Z = 8; for II a = 13.2822(5) Å, b = 10.2564(4) Å, c = 21.3250(8) Å, b = 100.7248(4)°, V = 2854.3(3) Å
3, space group P 2
1/ n , Z = 4. The structures of the compounds are stabilized by intra- and intermolecular hydrogen bonds and the structure of I is additionally stabilized by the p-p interaction between the SfH ions.
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