Crystal Size Effect on the Spin-Crossover Behavior of {Fe(py)2[Pt(CN)4]} (py = Pyridine) Monitored by Raman Spectroscopy

The spin-crossover phenomenon in nanomaterials has been the subject of exploratory investigations for stimuli-responsive switching properties at nanoscale. Using variable-temperature Raman spectroscopy, we investigated changes in the temperature-driven spin-transition property of {Fe­(py)2[Pt­(CN)4]...

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Published inInorganic chemistry Vol. 59; no. 23; pp. 16819 - 16823
Main Authors Sakaida, Shun, Otsubo, Kazuya, Maesato, Mitsuhiko, Kitagawa, Hiroshi
Format Journal Article
LanguageEnglish
Published American Chemical Society 07.12.2020
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Summary:The spin-crossover phenomenon in nanomaterials has been the subject of exploratory investigations for stimuli-responsive switching properties at nanoscale. Using variable-temperature Raman spectroscopy, we investigated changes in the temperature-driven spin-transition property of {Fe­(py)2[Pt­(CN)4]} (py = pyridine) induced by a size reduction from a bulk polycrystalline powder to an ultrathin film (crystallite size, 15 nm). When the crystallite size was reduced, the spin-transition temperature shifted lower and the spin-transition curves became less steep. In the thin-film form, the residual high-spin fraction was found to be about 20%.
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content type line 23
ISSN:0020-1669
1520-510X
1520-510X
DOI:10.1021/acs.inorgchem.0c02874