Impact of n,γ-irradiation on organic complexes of rare earth metals
| Autor: | Eugeny V. Baranov, Georgy K. Fukin, Mikhail N. Bochkarev, Mikhail N. Ivin, V. A. Ilichev, Tatyana V. Balashova, Sergey V. Obolensky, Andrey A. Kukinov, Alexey N. Trufanov |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Photoluminescence
Materials science chemistry.chemical_element lcsh:Medicine 02 engineering and technology 010402 general chemistry 01 natural sciences Spectral line Article Metal Molecule Neutron Irradiation Experimental nuclear physics lcsh:Science Multidisciplinary lcsh:R 021001 nanoscience & nanotechnology 0104 chemical sciences Cerium chemistry Organometallic chemistry visual_art Absorbed dose visual_art.visual_art_medium Physical chemistry lcsh:Q 0210 nano-technology |
| Zdroj: | Scientific Reports, Vol 9, Iss 1, Pp 1-6 (2019) Scientific Reports |
| ISSN: | 2045-2322 |
| Popis: | The complexes of La, Ce, Nd, Sm, Eu, Tb and Yb with benzoxazolyl-phenolate, benzothiazolyl-phenolate, benzoxazolyl-naphtholate, benzothiazolyl-naphtholate and 4,4,4-trifluoro-1-(2-thienyl)-1,3-butanedione ligands were treated with n,γ-irradiation upon a sustained (45 h, absorbed dose of 120 krad, flux of neutrons 5·1013 n/cm2) and a pulse mode (3 ms, absorbed dose of 130 krad, flux of neutrons 3.6·1013 n/cm2). It was found that main characteristics of the compounds (shape of substance, color, IR absorption and photoluminescent spectra) have not changed. With an example of cerium complex [Ce(OON)3]2 it was revealed that the molecular structure of compounds after strong pulse irradiation also does not changed. However, computer simulations of neutron exposure on the same complexes showed significant shift of metal atoms and ligands. Possible reasons for the detected discrepancy between experimental and calculated data are discussed. |
| Databáze: | OpenAIRE |
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