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  • Title: Bidentate coordinating behaviour of chalcone based ligands towards oxocations: VO(IV) and Mo(V).
    Author: Thaker BT, Barvalia RS.
    Journal: Spectrochim Acta A Mol Biomol Spectrosc; 2013 Aug; 112():101-9. PubMed ID: 23659957.
    Abstract:
    We synthesized and studied the coordinating behaviour of chalcone based ligands derived from DHA and n-alkoxy benzaldehyde and their complexes of VO(IV) and MoO(V). The chalcone ligands are characterized by elemental analyses, UV-visible, IR, (1)H NMR, and mass spectra. The resulting oxocation complexes are also characterized by elemental analyses, IR, (1)H NMR, electronic, electron spin resonance spectra, magnetic susceptibility measurement and molar conductance studies. The IR and (1)H NMR spectral data suggest that the chalcone ligands behave as a monobasic bidentate with O:O donor sequence towards metal ion. The molar conductivity data show them to be non-electrolytes. From the electronic, magnetic and ESR spectral data suggest that all the chalcone ligand complexes of VO(IV) and MoO(V) have distorted octahedral geometry.
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