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Synthesis, spectral and structural studies of oxovanadium(IV/V) complexes derived from 2-hydroxyacetophenone-3-hydroxy-2-naphthoylhydrazone: polymorphs of oxovanadium(V) complex [VOL(OCH3)]

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Abstract

Oxovanadium(IV/V) complexes of 2-hydroxyacetophenone-3-hydroxy-2-naphthoylhydrazone (H2L) have been synthesized and characterized. The complexes were characterized by elemental analyses, IR, electronic and EPR spectra. The oxovanadium(V) complex [VOL(OCH3)] is crystallized in two polymorphic forms, denoted by 1a and 1b, with space groups Pn21a and \( P_{{\bar{1}}} \), respectively. Both have distorted square pyramidal structures.

Index abstract

Oxovanadium(IV/V) complexes of 2-hydroxyacetophenone 3-hydroxy-2-naphthoylhydrazone (H2L) have been synthesized and characterized. The vanadium complexes were characterized by elemental analysis, IR spectra, UV–visible spectra, and EPR spectra. The structure of oxovanadium(V) complex [VOL(OCH3)] has been identified in two polymorphic forms, denoted by 1a and 1b, crystallizing in space groups Pn21a and \( P_{{\bar{1}}} ,\)respectively. Both have distorted square pyramidal structures.

Molecular structure of 1a

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Acknowledgement

M.R.P. Kurup is thankful to the CSIR, New Delhi, India [01(1963)/05/EMR-II] for financial assistance. We are thankful to the National Single Crystal X-ray diffraction Facility, IIT, Bombay, India, for providing single crystal XRD results.

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  1. Department of Applied Chemistry, Cochin University of Science and Technology, Kochi, 682-022, Kerala, India

    M. R. Prathapachandra Kurup, E. B. Seena & Mini Kuriakose

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  1. M. R. Prathapachandra Kurup
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  2. E. B. Seena
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  3. Mini Kuriakose
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Correspondence to M. R. Prathapachandra Kurup.

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Kurup, M.R.P., Seena, E.B. & Kuriakose, M. Synthesis, spectral and structural studies of oxovanadium(IV/V) complexes derived from 2-hydroxyacetophenone-3-hydroxy-2-naphthoylhydrazone: polymorphs of oxovanadium(V) complex [VOL(OCH3)]. Struct Chem 21, 599–605 (2010). https://doi.org/10.1007/s11224-010-9589-7

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