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Study of adduct compounds between oxovanadium complexes VO(IV) and some biological relevance using FTIR technique

Ahmed Majeed Jassem, Mohammed Qasim Mohammed, Raed Aubed Alharis, Hadi Abdalsamad Jabir, and Intisar Naser Alzearah

Department of Chemistry, College of Education for Pure Sciences, Basrah University, Basrah, Iraq



Received: 3 March 2019  Accepted: 25 September 2019


Oxovanadium(IV) complexes [VO(HL1)2] and [VO(H2L2)2] from 2-aminobenzoic acid (HL1) and 2-hydroxybenzoic acid (HL2) were synthesized and characterized by 1HNMR, 13CNMR, mass (ESI–MS), X-ray diffraction (XRD), conductivity measurements, FTIR spectral data, and melting points. Based on the above analytical data, the complexes have the general formula [VO(HL)2]. The interaction of the complexes with donor compounds (biological relevance) was performed and investigated with absorption spectroscopy. 1:1 Adduct compounds of oxovanadium complexes as an acceptor with adenine, cytosine, and guanine as an electron donor were studied by FTIR technique and viscosity measurements. FTIR technique was used to determine the binding constants for adduct compounds.

Keywords: Oxovanadium(IV) complexes; Adduct compounds; Binding constants; FTIR technique

Full paper is available at

DOI: 10.1007/s11696-019-00949-w


Chemical Papers 74 (4) 1087–1102 (2020)

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