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

Authors :
Sakaida S
Otsubo K
Maesato M
Kitagawa H
Source :
Inorganic chemistry [Inorg Chem] 2020 Dec 07; Vol. 59 (23), pp. 16819-16823. Date of Electronic Publication: 2020 Nov 07.
Publication Year :
2020

Abstract

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) <subscript>2</subscript> [Pt(CN) <subscript>4</subscript> ]} (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%.

Details

Language :
English
ISSN :
1520-510X
Volume :
59
Issue :
23
Database :
MEDLINE
Journal :
Inorganic chemistry
Publication Type :
Academic Journal
Accession number :
33164507
Full Text :
https://doi.org/10.1021/acs.inorgchem.0c02874