OXOVANADIUM (IV) COMPLEXES WITH CEPHRADINE: SYNTHESIS, SEMI-EMPIRICAL STUDY, SPECTROSCOPY, POTENTIOMETRIC STUDY AND ANTIMICROBIAL ACTIVITY

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SHAHZADI S.; ALI S.; SHARMA S.K.; QANUNGO K.

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Journal: JOURNAL OF THE IRANIAN CHEMICAL SOCIETY(JICS) Year:2010 | Volume:7 | Issue:2 Page(s): 405-418

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Title

OXOVANADIUM (IV) COMPLEXES WITH CEPHRADINE: SYNTHESIS, SEMI-EMPIRICAL STUDY, SPECTROSCOPY, POTENTIOMETRIC STUDY AND ANTIMICROBIAL ACTIVITY

Author(s)

SHAHZADI S. | ALI S. | SHARMA S.K. | QANUNGO K. | Issue Writer Certificate

Keywords

OXOVANADIUM (IV) COMPLEXES

POTENTIOMETRIC STUDY

PM6 CALCULATIONS

BIOLOGICAL ACTIVITIES

Abstract

The reactions between cephradine and VOSO4.3H2O in 1:1, 1:2 and 1:3 molar ratios in methanol were investigated at room temperature, 0oC and -10oC. In various pH conditions, the different complexes formulated as VO (H2O)3L2-, VO(H2O)L22- and VL3- were formed by titration of VOSO4.3H2O and cephradine with NaOH. These complexes were characterized by elemental analysis and IR spectroscopy. IR spectra of all the complexes show the disappearance of n (O-H) band of cephradine, which confirms complexation. Estimation of vanadium in the complexes was carried out by ICP-AES. The stability constants of each complex were calculated on the basis of which a general mechanism is hereby proposed with regard to the formation of these complexes. In complex (1) the cephradine ligand bind in bidentate [O,O] fashion together with a terminal oxo ligand and water molecules complete the metal coordination sphere. In complex (2) the cephradine ligands bind in bis-bidentate [O,O] fashion and the axial positions are occupied by the oxo ligand and a trans-water molecule. Biological screening tests show significant anti-bacterial and anti-fungal activities against various bacterial and fungal strains.

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APA: Copy

SHAHZADI, S., ALI, S., SHARMA, S.K., & QANUNGO, K.. (2010). OXOVANADIUM (IV) COMPLEXES WITH CEPHRADINE: SYNTHESIS, SEMI-EMPIRICAL STUDY, SPECTROSCOPY, POTENTIOMETRIC STUDY AND ANTIMICROBIAL ACTIVITY. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY(JICS), 7(2), 405-418. SID. https://sid.ir/paper/282388/en

Vancouver: Copy

SHAHZADI S., ALI S., SHARMA S.K., QANUNGO K.. OXOVANADIUM (IV) COMPLEXES WITH CEPHRADINE: SYNTHESIS, SEMI-EMPIRICAL STUDY, SPECTROSCOPY, POTENTIOMETRIC STUDY AND ANTIMICROBIAL ACTIVITY. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY(JICS)[Internet]. 2010;7(2):405-418. Available from: https://sid.ir/paper/282388/en

IEEE: Copy

S. SHAHZADI, S. ALI, S.K. SHARMA, and K. QANUNGO, “OXOVANADIUM (IV) COMPLEXES WITH CEPHRADINE: SYNTHESIS, SEMI-EMPIRICAL STUDY, SPECTROSCOPY, POTENTIOMETRIC STUDY AND ANTIMICROBIAL ACTIVITY,” JOURNAL OF THE IRANIAN CHEMICAL SOCIETY(JICS), vol. 7, no. 2, pp. 405–418, 2010, [Online]. Available: https://sid.ir/paper/282388/en

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