Crystal structure and X-ray photoelectron spectroscopy of ciprofloxacinium tetrachloroaurate monohydrate

The complex (CfqH 2 AuCl 4 · H 2 O ((CfqH 2 ) + is the ciprofloxacinium cation) was isolated and analyzed by spectral luminescence, X-ray photoelectron spectroscopy, and X-ray diffraction analysis. The central Au(III) atom has no direct interatomic contacts with the 1-cyclopropyl-6-fluoro-4-oxo-(1-p...

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Bibliographic Details
Published in:Russian journal of coordination chemistry 2011-03, Vol.37 (3), p.215-222
Main Authors: Polishchuk, A. V., Karaseva, E. T., Cherednichenko, A. I., Gerasimenko, A. V., Karasev, V. E.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Inorganic Chemistry
Physical Chemistry
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Summary:The complex (CfqH 2 AuCl 4 · H 2 O ((CfqH 2 ) + is the ciprofloxacinium cation) was isolated and analyzed by spectral luminescence, X-ray photoelectron spectroscopy, and X-ray diffraction analysis. The central Au(III) atom has no direct interatomic contacts with the 1-cyclopropyl-6-fluoro-4-oxo-(1-piperazinyl)-1,4-dihydro-3-quinolinecarboxylic acid (CfqH) molecule. The structure is formed by the [AuCl 4 ] − anions having a square structure, (CfqH 2 ) + cations, and water molecules combined by hydrogen bonds. The protonation of CfqH occurs at the terminal nitrogen atom of the piperazinyl group. Core-level X-ray photo-electron spectra of carbon, oxygen, nitrogen, and fluorine were measured. Cleavage of the Su-Cl bond was shown to be the primary step of the photoinduced decomposition of the compound.
ISSN:1070-3284
1608-3318
DOI:10.1134/S1070328411020084