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Synthesis and characterization of new metal complexes of thiosemicarbazone derived from 4-phenyl-3-thiosemicarbazide and chromone-3-carboxaldehyde

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Summary

The reaction between chromone-3-carboxaldehyde-4-phenylthiosemicarbazone (HCPT) and some hydrated metal salts of CoII, NiII and CuII give complexes of the type [Cu(HCPT)Cl2],[Cu(CPT)BrH2O],[Cu(CPT)2]·2H2O, [Ni(CPT)2(H2O)2]·2H2O, [Co(CPT)2(OAc)] and [Co(CPT)2(H2O)2]X·2H2O (where X=Cl or Br). The metal complexes were characterized by elemental analyses, molar conductivities, and spectal (i.r. and visible) and magnetic studies. I.r. spectra show that the HCPT coordinates in the thione or thiol form and behaves in a bidentate manner. Also, HCPT behaves as an oxidizing agent towards CoII forming diamagnetic CoIII complexes. An octahedral structure is proposed for both CoIII and NiII complexes, while a square-planar structure is proposed for CuII complexes on the basis of magnetic and spectral measurements.

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Authors and Affiliations

  1. Department of Chemistry, Faculty of Science, Mansoura University, Egypt

    Kamal M. Ibrahim & Magdy M. Bekheit

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  1. Kamal M. Ibrahim
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  2. Magdy M. Bekheit
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Ibrahim, K.M., Bekheit, M.M. Synthesis and characterization of new metal complexes of thiosemicarbazone derived from 4-phenyl-3-thiosemicarbazide and chromone-3-carboxaldehyde. Transition Met Chem 13, 230–232 (1988). https://doi.org/10.1007/BF01171333

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  • DOI: https://doi.org/10.1007/BF01171333

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