Local atomic structure of mono- and binuclear metal complexes based on 3-formylpyrone and 3-formylcoumarin bis-azomethines


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A series of Cu, Ni, and Mn complexes based on formylpyrone and formylcoumarin azomethynes with 1,3- diaminepropanol-2. The analysis of XANES and EXAFS spectra of the Cu, Ni, and Mn complexes, which were processed by both Fourier and wavelet transforms, enables the determination of local atomic structural parameters and the unambiguous evidence of the formation of both dinuclear and mononuclear structures of these coordination compounds. The possibility of forming binuclear compounds is shown to depend mainly on the nature of the bridging ligand and be independent of the type of the polydentate azomethyne ligand: pyrone or coumarin. The obtained structural results are well consistent with the magnetochemical data for the complexes.

Sobre autores

V. Vlasenko

Scientific Research Institute of Physics

Autor responsável pela correspondência
Email: v_vlasenko@rambler.ru
Rússia, Rostov-on-Don

L. Popov

Southern Federal University

Email: v_vlasenko@rambler.ru
Rússia, Rostov-on-Don

I. Shcherbakov

Southern Federal University

Email: v_vlasenko@rambler.ru
Rússia, Rostov-on-Don

V. Lukov

Southern Federal University

Email: v_vlasenko@rambler.ru
Rússia, Rostov-on-Don

S. Levchenkov

Southern Federal University; Southern Scientific Center

Email: v_vlasenko@rambler.ru
Rússia, Rostov-on-Don; Rostov-on-Don

I. Pankov

Southern Federal University

Email: v_vlasenko@rambler.ru
Rússia, Rostov-on-Don

Ya. Zubavichus

National Research Center, Kurchatov Institute

Email: v_vlasenko@rambler.ru
Rússia, Moscow

A. Trigub

National Research Center, Kurchatov Institute

Email: v_vlasenko@rambler.ru
Rússia, Moscow

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