Influence of ligand donor-acceptor properties on the structure, optical, and electrochemical characteristics of Ir(III) complexes with cyclometallated 2-phenylbenzotiazole
- Authors: Katlenok E.A.1, Zolotarev A.A.2, Balashev K.P.1
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Affiliations:
- Herzen State Pedagogical University of Russia
- St. Petersburg State University
- Issue: Vol 86, No 11 (2016)
- Pages: 2508-2514
- Section: Article
- URL: https://journals.rcsi.science/1070-3632/article/view/216558
- DOI: https://doi.org/10.1134/S1070363216110177
- ID: 216558
Cite item
Abstract
The cis-C,C-structure of a series of cyclometallated Ir(III) complexes with 2-phenylbenzotiazole was determined by the methods of X-ray diffraction (XRD) analysis, 1H, 13C, 31P NMR, and IR spectroscopy. Long-wave absorption bands, phosphorescence, and processes of electrochemical oxidation and reduction of the complexes were assigned to the transfer of electrons presumably located on dπ and π* orbitals of cyclometallated 2-phenylbenzotiazole. The decrease in donor and acceptor properties of the ligands leads to the blue shift of absorption spectra and phosphorescence and to the anodic shift of oxidation and reduction potentials of the complexes.
About the authors
E. A. Katlenok
Herzen State Pedagogical University of Russia
Email: k_balashev@mail.ru
Russian Federation, nab. reki Moiki 48, St. Petersburg, 191186
A. A. Zolotarev
St. Petersburg State University
Email: k_balashev@mail.ru
Russian Federation, St. Petersburg
K. P. Balashev
Herzen State Pedagogical University of Russia
Author for correspondence.
Email: k_balashev@mail.ru
Russian Federation, nab. reki Moiki 48, St. Petersburg, 191186