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Transition metal complexes with Girard reagent-based ligands

Part III. Synthesis and characterization of salicylaldehyde Girard-T hydrazone complexes. Crystal structure of ligand and two isostructural copper(II) complexes

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Abstract

The ligand, salicylaldehyde Girard-T hydrazonium chloride, [H2SalGT]Cl (1), and two complexes [Cu(HSalGT)X2]·H2O (X = Br(2); Cl(3)) were synthesized and their crystal structures were determined by single-crystal X-ray analysis. In the two isostructural complexes, the Cu(II) is located in a square-pyramidal environment, with the chelating ligand and one halogen atom in the basal plane and the second halogen in the apical position. The most apparent structural difference between the 1 and its complexes 2 and 3 is the orientation of the N(CH3)3 group: in 1, it is practically coplanar to the rest of the molecule, while in 2 and 3 it is oriented to the side of the axially bonded halogen, which can be explained by the C–H…X intramolecular interactions. The compounds were characterized by elemental analysis, molar conductivity, magnetic susceptibility and electronic absorption spectra.

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Acknowledgments

This work was supported by the Ministry of Science (Projects Nos. 142010 and 142028) and Environmental Protection of the Republic of Serbia and the Provincial Secretariat for Science and Technological Development of Vojvodina.

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Authors and Affiliations

  1. Department of Chemistry, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 3, Novi Sad 21000, Serbia

    Vukadin M. Leovac, Valerija I. Češljević, Ljiljana S. Jovanović & Ljiljana S. Vojinović-Ješić

  2. VINČA Institute of Nuclear Science, P.O. Box 522, Belgrade 11001, Serbia

    Goran A. Bogdanović & Sladjana B. Novaković

Authors
  1. Vukadin M. Leovac
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  2. Goran A. Bogdanović
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  3. Valerija I. Češljević
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  4. Ljiljana S. Jovanović
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  5. Sladjana B. Novaković
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  6. Ljiljana S. Vojinović-Ješić
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Correspondence to Goran A. Bogdanović.

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Leovac, V.M., Bogdanović, G.A., Češljević, V.I. et al. Transition metal complexes with Girard reagent-based ligands. Struct Chem 18, 113–119 (2007). https://doi.org/10.1007/s11224-006-9136-8

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  • DOI: https://doi.org/10.1007/s11224-006-9136-8

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