Synthesis and Characterization of New Oxovanadium(IV) Coordination Compounds with Pyrazol-5-one Azo Derivatives
Abstract:
<p align="justify"> A new series of oxovanadium(IV) chelates containing bi-and tridentate pyrazol-5-one azo derivatives ligands of the type (I) [VO(L)<sub>2</sub>] and (2) [VO(L)(H<sub>2</sub>O)] have been prepared and characterized by elementary analysis, IR, electronic spectra, conductance measurements, and molecular weights. The ligands coordinate through (O-N) donor system as monobasic and bidentate (HL) for the first type and through (0-N-O) donor system as dibasic and tridentate (H<sub>2</sub>L) for the second type of complexes. The molecular weights, the presence of the (V=O) stretching band around 950 cm <sup>-1</sup>, and the visible spectra suggest a monomeric penta-coordinated structure for these complexes. </p>
<p align="justify"> A new series of oxovanadium(IV) chelates containing bi-and tridentate pyrazol-5-one azo derivatives ligands of the type (I) [VO(L)<sub>2</sub>] and (2) [VO(L)(H<sub>2</sub>O)] have been prepared and characterized by elementary analysis, IR, electronic spectra, conductance measurements, and molecular weights. The ligands coordinate through (O-N) donor system as monobasic and bidentate (HL) for the first type and through (0-N-O) donor system as dibasic and tridentate (H<sub>2</sub>L) for the second type of complexes. The molecular weights, the presence of the (V=O) stretching band around 950 cm <sup>-1</sup>, and the visible spectra suggest a monomeric penta-coordinated structure for these complexes. </p>
DOI: 10.48141/SBJCHEM.v6.n7.1998.90_1998_2.pdf
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