4-(3-Carb­­oxy-1-ethyl-6-fluoro-4-oxo-1,4-di­hydro-7-quinol­yl)-1-methyl­piper­azin­ium picrate

Fun, Hoong-Kun and Hemamalini, M. and Shetty, Divya N. and Narayana, B. and Yathirajan, H. S. (2010) 4-(3-Carb­­oxy-1-ethyl-6-fluoro-4-oxo-1,4-di­hydro-7-quinol­yl)-1-methyl­piper­azin­ium picrate. Acta Crystallographica Section E, 66 (3). o714-o715. ISSN 2056-9890

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Official URL: https://doi.org/10.1107/S1600536810006835


The pefloxacinium cation of the title salt, C17H21FN3O3+·C6H2N3O7−, is composed of an essentially planar quinoline ring system [maximum deviation = 0.021 (2) Å] and a piperazine ring, which adopts a chair conformation. In the picrate anion, the two O atoms of one of the o-NO2 groups are disordered over two positions, with an occupancy ratio of 0.56 (4):0.44 (4). In the crystal structure, cations and anions are connected by inter­molecular N—H⋯O, O—H⋯O, C—H⋯O and C—H⋯F hydrogen bonds, forming a three-dimensional network. In addition, π–π inter­actions between the pyridine rings and between the benzene rings of the anions, with centroid–centroid distances of 3.6103 (12) and 3.5298 (11) Å, respectively, are observed.

Item Type: Article
Subjects: C Chemical Science > Chemistry
Divisions: Department of > Chemistry
Depositing User: MUL SWAPNA user
Date Deposited: 30 Oct 2019 10:17
Last Modified: 30 Oct 2019 10:17
URI: http://eprints.uni-mysore.ac.in/id/eprint/9724

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