Structure of two novel fluoroquinolone salts

Fluoroquinolone compounds with the composition CfH^2+_2 , 2Cl – , H 2 O (CfH 2 Cl 2 ·H 2 O ( I )) and 4LevoH^2+_2 , 3[SnCl 6 ] 2– , 2Cl – , 2H 2 O ((LevoH 2 ) 4 [SnCl 6 ] 3 Cl 2 ·2H 2 O ( II )) (Cf is ciprofloxacin, Levo is levofloxacin) are prepared. Their structures are determined by XRSCD. Crystals I are monoclinic: a = 8.6389(11) Å, b = 14.5486(19) Å, c = 14.8605(19) Å, β = 91.914(3)°, V = 1866.7(4) Å 3 , space group P 2 1 / c , Z = 4. Crystals II are triclinic: a = 12.4821(8) Å, b = 13.8144(8) Å, c = 15.2342(9) Å, α = 84.360(1)°, β = 79.265(1)°, γ = 74.038(1)°, V = 2478.3(3) Å 3 , space group P 1, Z = 1. The structures are stabilized by multiple hydrogen bonds. The photoluminescent properties and thermal stability of compound I are considered.