Electronic Structures of the Palladium(II) Complexes with Redox-Active o-Phenylenediimines

Autor: S. V. Savilov, Alexey A. Sidorov, Mikhail A. Kiskin, Konstantin I. Maslakov, Igor L. Eremenko, T. M. Ivanova
Rok vydání: 2021
Předmět:
Zdroj: Russian Journal of Coordination Chemistry. 47:702-706
ISSN: 1608-3318
1070-3284
Popis: The electronic structures and the character of the electron density redistribution in the palladium complexes with the redox-active ligands in the oxidized and nonoxidized forms are studied by X-ray photoelectron spectroscopy. According to the photoelectron spectroscopic data, the redox-active ligands exist in different oxidation states due to the redox process proceeding “at ligand.” It is shown that the transition from the neutral to oxidized semiquinone form (from [Pd(LMe)2]·2Cl·H2O to [Pd $$\left( {{\text{L}}_{{{\text{Ph}}}}^{{{\text{ISQ}}}}} \right)$$ 2]) occurs in the ligand and involves no palladium ions, and the oxidation state of palladium remains unchanged: Pd(II). A significant difference in the photoelectron spectroscopic characteristics obtained for the oxidized trans-complex at 298 and 153 K indicates a specific electronic lability of this complex.
Databáze: OpenAIRE
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