Electron Energy Loss Spectra of the Organic Complexes of Europium

Journal of Applied Spectroscopy - Tập 69 - Trang 487-491 - 2002
N. A. Borisevich1, S. M. Kazakov2, A. V. Kukhto1, D. V. Murtazaliev2, T. A. Pavich1, O. V. Khristoforov2
1Institute of Molecular and Atomic Physics, National Academy of Sciences of Belarus, Minsk, Belarus
2Chuvash State University, Cheboksary, Russia

Tóm tắt

In the electron energy loss spectra (EELS) of the organic europium complexes Eu3+ (BTFA)3TPPO and Eu3+(Br‐BTFA)3TPPO in a gas phase obtained on excitation by monokinetic beams of electrons of different energies in the range 12–50 eV, we have identified the bands associated with the electron transitions S 0–S 1, S 0–S 2, and S 0–S 3. The connection of these transitions with the structural groups of the complexes is established. The addition of the bromine atom to the phenyl ring of β‐diketonate leads to the rise in the relative intensity of the S 0–S 2 band. The singlet‐triplet transitions manifest themselves in the region 2.5–3.2 eV and contribute to the S 0–S 2 band of the electron energy loss spectra.

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Thông tin
Thông tin xuất bản

Journal of Applied Spectroscopy

Tập 69

487-491

Thông tin tác giả