Influence of platinum metals on spectral and electrochemical characteristics of metallated azole luminophors
- 作者: Katlenok E.1, Balashev K.1
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隶属关系:
- Hertzen State Pedagogical University of Russia
- 期: 卷 87, 编号 2 (2017)
- 页面: 293-299
- 栏目: Article
- URL: https://journals.rcsi.science/1070-3632/article/view/218399
- DOI: https://doi.org/10.1134/S1070363217020232
- ID: 218399
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Spectral (1H NMR and IR), optical, and voltammetry parameters of Pd(II), Pt(II), Rh(III), and Ir(III) complexes with ethylenediamine and metallated azole luminophors [2-phenylbenzoxazole, 2-phenylbenzothiazole, 2,5-diphenyloxazole, 2-(1,1'-biphenyl)-4-yl]-5-phenyloxazole, and 2-(naphthalene-l-yl)benzothiazole] have been studied. The variation in spectroscopic parameters of the complexes is related to the increase in the efficiency of donor-acceptor interaction of Pt(II) and Ir(III) with the ligands as compared to Pd(II) and Rh(III). The correlation between the energy of the metal-ligand charge transfer bands and the difference between the single-electron oxidation and reduction potentials of the complexes is observed. Quenching of the fluorescence of metallated azoles and phosphorescence of the complexes in the visible region from the metal-modified intraligand excited state are related with the increase in the efficiency of the singlettriplet conversion due to the spin-orbital interaction in platinum metals.
作者简介
E. Katlenok
Hertzen State Pedagogical University of Russia
Email: k_balashev@mail.ru
俄罗斯联邦, nab. reki Moiki 48, St. Petersburg, 191186
K. Balashev
Hertzen State Pedagogical University of Russia
编辑信件的主要联系方式.
Email: k_balashev@mail.ru
俄罗斯联邦, nab. reki Moiki 48, St. Petersburg, 191186