Oxovanadium (IV) esters of ciprofloxacin: Their characterization and potentiometric study
Keywords:
Oxovanadium (IV) esters, potentiometric study, stability constant., IRAbstract
The reaction between ciprofloxacin and VOSO4.3H2O in 1:1, 1:2 and 1:3 molar ratio in methanol was
investigated at 20˚C, 0˚C and -10˚C. In various pH conditions the different complexes which are formulated as
VO(H2O)3L, VO(H2O)L2 and VL3 have been formed by titration of VOSO4.3H2O with ciprofloxacin in the presence
of NaOH. These complexes have been characterized by IR spectroscopy. The order of stability is estimated as
1:1 >1:3 >1:2 which is justified by the proposed mechanism.
