CRYSTAL STRUCTURE OF LEVOFLOXACINDIUM CADMIUM TETRABROMIDE DIHYDRATE C<sub>18</sub>H<sub>22</sub>FN<sub>3</sub>O·[CdBr<sub>4</sub>]<sup>2-</sup>·2H<sub>2</sub>O
A new compound C<sub>18</sub>H<sub>22</sub>FN<sub>3</sub>O·[CdBr<sub>4</sub>]<sup>2-</sup>·2H<sub>2</sub>O, C<sub>18</sub>H<sub>20</sub>FN<sub>3</sub>O<sub>4</sub>-levofloxacin (LevoH) is synthesized and its crystal and molecular structure is determined. Crystallographic data for levofloxacindi-um cadmium tetrabromide dihydrate C<sub>18</sub>H<sub>26</sub>CdBr<sub>4</sub>FN<sub>3</sub>O<sub>6 </sub>are as follows: <i>a</i> = 8.3815(8) Å, <i>b</i> = 27.318(3) Å, <i>с</i> = 12.066(1) Å, β = 107.105(1)°, <i>V</i> = 2640.5(4) Å<sup>3</sup>, <i>P</i>2<sub>1</sub> space group, <i>Z</i> = 4. Hydrogen bonds form a branched three-dimensional network linking LevoH CdBr and water molecules. The structure is also stabilized by the π-π interaction of LevoHaromatic rings.