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Iridium(III) and Platinum(II) complexes with metallated and chelating benzothiazole derivatives: Structural, optical, and electrochemical properties

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Abstract

The structures of the Ir(III) and Pt(II) complexes with metallated 2-phenylbenzothiazole (Bt) and chelating 2-(2-hydroxo)phenylbenzothiazole (Hbt) in the crystalline state and in a CDCl3 solution are studied by X-ray diffraction analysis and 1H NMR spectroscopy. The structures of the complexes are shown to be cis-C,C-[Ir(Bt)2(HBt)] (I) and trans-N,N-[Pt(Bt)(HBt)] (II) (CIF files CCDC 996857 (I) and 995845 (II)). Based on the results of absorption and emission electron spectroscopy, the highest occupied and lowest unoccupied molecular orbitals (HOMO and LUMO) determining the character of long-wavelength optical bands and electrochemical processes are assigned to the orbitals predominantly localized on the {Ir(Bt)} fragment for complex I, whereas for complex II the LUMO is localized on {Pt(Bt)} and the HOMO is localized on the {Pt(HBt)} fragment.

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Authors and Affiliations

  1. Russian State Pedagogical University, St. Petersburg, Russia

    E. A. Katlenok & K. P. Balashev

  2. St. Petersburg State University, St. Petersburg, Russia

    A. A. Zolotarev

Authors
  1. E. A. Katlenok
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  2. A. A. Zolotarev
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  3. K. P. Balashev
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Correspondence to K. P. Balashev.

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Original Russian Text © E.A. Katlenok, A.A. Zolotarev, K.P. Balashev, 2015, published in Koordinatsionnaya Khimiya, 2015, Vol. 41, No. 1, pp. 40–45.

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Katlenok, E.A., Zolotarev, A.A. & Balashev, K.P. Iridium(III) and Platinum(II) complexes with metallated and chelating benzothiazole derivatives: Structural, optical, and electrochemical properties. Russ J Coord Chem 41, 37–42 (2015). https://doi.org/10.1134/S1070328415010042

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  • DOI: https://doi.org/10.1134/S1070328415010042

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