The EPR spectrum of an impurity in the organic substance bromcresol green is investigated in the temperature interval 4.2–295 K. At a temperature of 4.2 K the spectrum is a superposition of two lines with effective g factors and As the temperature is lowered a redistribution of the intensity between line occurs. The integral intensity of the first line decreases with increasing temperature, while that of the second line increases. Another feature of the temperature dependence of the EPR spectrum of the ion in is manifested in the exponential growth of the width of the second resonance line with decreasing temperature. The observed properties of the EPR spectrum in are typical for systems with a multiwell potential and permit one to characterize the dynamics of the molecules of the environment of the magnetic ion.
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January 2002
Research Article|
January 01 2002
EPR spectrum of the ion in bromcresol green and features in the dynamics of the surrounding molecules
V. V. Chabanenko;
V. V. Chabanenko
A. A. Galkin Physicotechnical Institute, National Academy of Sciences of Ukraine, ul. R. Lyuksemburg 72, 83114 Donetsk, Ukraine
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V. N. Vasyukov;
V. N. Vasyukov
A. A. Galkin Physicotechnical Institute, National Academy of Sciences of Ukraine, ul. R. Lyuksemburg 72, 83114 Donetsk, Ukraine
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R. O. Kochkanjan;
R. O. Kochkanjan
L. M. Litvinenko Institute of Physics and Organic Chemistry and Carbon Chemistry, ul. R. Lyuksemburg 70, 83114 Donetsk, Ukraine
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M. M. Nechitailov;
M. M. Nechitailov
L. M. Litvinenko Institute of Physics and Organic Chemistry and Carbon Chemistry, ul. R. Lyuksemburg 70, 83114 Donetsk, Ukraine
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H. Szymczak;
H. Szymczak
Institute of Physics, Polish Academy of Sciences, al. Lotnikow 32/46, 02-668 Warsaw, Poland
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S. Piechota;
S. Piechota
Institute of Physics, Polish Academy of Sciences, al. Lotnikow 32/46, 02-668 Warsaw, Poland
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A. Nabialek
A. Nabialek
Institute of Physics, Polish Academy of Sciences, al. Lotnikow 32/46, 02-668 Warsaw, Poland
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Low Temp. Phys. 28, 49–53 (2002)
Citation
V. V. Chabanenko, V. N. Vasyukov, R. O. Kochkanjan, M. M. Nechitailov, H. Szymczak, S. Piechota, A. Nabialek; EPR spectrum of the ion in bromcresol green and features in the dynamics of the surrounding molecules. Low Temp. Phys. 1 January 2002; 28 (1): 49–53. https://doi.org/10.1063/1.1449185
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