57Fe Mössbauer spectroscopic study for Fe(pyridine)2Ni(CN)4 spin-crossover compound.
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| Title: | 57Fe Mössbauer spectroscopic study for Fe(pyridine) |
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| Authors: | Kitazawa, T.1, Hosoya, K.1, Takahashi, M.1, Takeda, M.1, Marchuk, I.2, Filipek, S. M.2 |
| Source: | Journal of Radioanalytical & Nuclear Chemistry. Mar2003, Vol. 255 Issue 3, p509-512. 4p. |
| Subjects: | Iron compounds, Pyridine, Mössbauer spectroscopy, Hysteresis, Nuclear chemistry |
| Abstract: | We have measured the 57Fe Mössbauer spectra of the Hofmann pyridine complex Fe(pyridine)2Ni(CN)4 sample before and after exposure to high pressure of gaseous xenon. The temperature dependence of the high spin molar fraction has been determined from the 57Fe Mössbauer spectra. The spin transition of the sample without the high pressure treatment occurs between 175 and 220 K with a hysteresis width of 15 K. Although the 57Fe Mössbauer spectra suggest that the spin crossover behavior of the sample before and after the high pressure treatment are almost the same, the hysteresis of the latter sample is somewhat larger. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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