Features of the Electronic and Local Atomic Structures of Erbium Complexes of Tetraphenylporfyrin: Analysis of the Data Photoelectron Spectroscopy and X-Ray Absorption Spectroscopy

R. N. Mozhchil; Можчиль Р. Н.; A. M. Ionov; Ионов А. М.; S. I. Bozhko; Божко С. И.; V. D. Rumyantseva; Румянцева В. Д.; A. P. Menushenkov; Менушенков А. П.; A. L. Trigub; Тригуб А. Л.

doi:10.31857/S102809602301017X

Features of the Electronic and Local Atomic Structures of Erbium Complexes of Tetraphenylporfyrin: Analysis of the Data Photoelectron Spectroscopy and X-Ray Absorption Spectroscopy

作者: Mozhchil R.¹^,2, Ionov A.¹, Bozhko S.¹, Rumyantseva V.³, Menushenkov A.², Trigub A.⁴
隶属关系:
1. Institute of Solid State Physics RAS
2. National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
3. Moscow Technological University (MIREA)
4. National Research Centre “Kurchatov Institute”
期: 编号 1 (2023)
页面: 25-30
栏目: 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

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详细

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.

关键词

X-ray photoelectron spectroscopy, X-ray absorption spectroscopy, rare earth metalloporphyrins, tetraphenylporphyrin, erbium.

参考

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