Features of the Electronic and Local Atomic Structures of Erbium Complexes of Tetraphenylporfyrin: Analysis of the Data Photoelectron Spectroscopy and X-Ray Absorption Spectroscopy
- Authors: Mozhchil R.N.1,2, Ionov A.M.1, Bozhko S.I.1, Rumyantseva V.D.3, Menushenkov A.P.2, Trigub A.L.4
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Affiliations:
- Institute of Solid State Physics RAS
- National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
- Moscow Technological University (MIREA)
- National Research Centre “Kurchatov Institute”
- Issue: No 1 (2023)
- Pages: 25-30
- Section: Articles
- URL: https://journals.rcsi.science/1028-0960/article/view/137655
- DOI: https://doi.org/10.31857/S102809602301017X
- EDN: https://elibrary.ru/BLMGEP
- ID: 137655
Cite item
Abstract
The features of the electronic and local atomic structure of erbium metalloporphyrins Er(acac)TPPBr8, Er(acac)TPP and precursor tetraphenylporphyrins (TPP and TPPBr8) have been studied by X-ray photoelectron spectroscopy and X-ray absorption spectroscopy. Using photoelectron spectroscopy, the structure parameters of the Er4d, N1s, C1s, O1s, Br3d core levels and the valence band have been determined. The nature of the change in the electronic structure of tetraphenylporphyrins upon the introduction of the central erbium atom has been established – a uniform redistribution of the electron density between the nitrogen atoms of the pyrrole and aza groups. From the analysis of the X-ray absorption spectra, the effect of bromine addition in the meso-position of the macrocycle on the parameters of the local atomic structure of the erbium porphyrin complex has been established, and the integer trivalent state of the metal (Er3+) in rare-earth metalloporphyrins has been confirmed.
About the authors
R. N. Mozhchil
Institute of Solid State Physics RAS; National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Author for correspondence.
Email: mr_mozhzcil@mail.ru
Russia, 142432, Chernogolovka; Russia, 115409, Moscow
A. M. Ionov
Institute of Solid State Physics RAS
Author for correspondence.
Email: ionov@issp.ac.ru
Russia, 142432, Chernogolovka
S. I. Bozhko
Institute of Solid State Physics RAS
Email: ionov@issp.ac.ru
Russia, 142432, Chernogolovka
V. D. Rumyantseva
Moscow Technological University (MIREA)
Email: ionov@issp.ac.ru
Russia, 11957, Moscow
A. P. Menushenkov
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Email: ionov@issp.ac.ru
Russia, 115409, Moscow
A. L. Trigub
National Research Centre “Kurchatov Institute”
Email: ionov@issp.ac.ru
Russia, 123182, Moscow
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Supplementary files
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