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Transition Metal(II) Complexes of a Novel Symmetrical Benzothiazole-Based Ligand: Synthesis, Spectral/Structural Characterization and Fluorescence Properties

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Abstract

2,6-bis (benzothiazol-2-yl)-4-(tert-butyl) phenol ligand (HL) derived from o-aminothiophenol and 4-tert-butyl-2,6-diformylphenol was synthesized and characterized by using elemental analysis, FTIR, X-ray crystallographic analysis, 1H and 13C-NMR and UV–vis spectra. Its complexes with Cu (II), Ni (II) and Co (II) were prepared and isolated as solid products and characterized by elemental analysis, spectral techniques as well as magnetic susceptibility. The FTIR spectra showed that the benzothiazole-based ligand under investigation behaves as a bidentate ligand. The UV–vis spectra and magnetic moment data suggested an octahedral geometry around Ni (II) and Co (II) complexes, and tetragonal geometry for Cu (II) complex. Moreover, the evaluation of absorption and emission properties of the ligand and its complexes were carried out in different solvents. The ligand and its complexes showed absorption maxima in the range of 275 – 432 nm, and emission maxima from 367 to 581 nm in toluene, tetrahydrofuran and ethyl acetate.

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Acknowledgments

The authors wish to thank Presidency of Scientific Research Projects of University of Yüzüncü Yıl for the financial support.

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Authors and Affiliations

  1. Department of Chemistry, Faculty of Science, University of Yüzüncü Yıl, 65080, Van, Turkey

    Mehmet Gulcan, Yaşar Karataş & Esvet Akbaş

  2. Department of Chemistry, Faculty of Science, University of Dokuz Eylül, 35160, Tınaztepe, Izmir, Turkey

    Sema Işık & Gülsiye Öztürk

  3. Department of Chemistry, Faculty of Science, University of Atatürk, 25000, Erzurum, Turkey

    Ertan Şahin

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  1. Mehmet Gulcan
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  2. Yaşar Karataş
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  3. Sema Işık
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Correspondence to Mehmet Gulcan.

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Gulcan, M., Karataş, Y., Işık, S. et al. Transition Metal(II) Complexes of a Novel Symmetrical Benzothiazole-Based Ligand: Synthesis, Spectral/Structural Characterization and Fluorescence Properties. J Fluoresc 24, 1679–1686 (2014). https://doi.org/10.1007/s10895-014-1455-3

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