Abstract
A mononuclear iron(II) complex that displays a gradual two-step spin-crossover (SCO) transition is reported. The intermediate plateau (IP) occurs between HS 0.40LS 0.60 and HS 0.30LS 0.70 (HS = high spin; LS = low spin) ratios over the region of ca. 190-170 K. A phase change occurs at the IP, breaking the symmetry, resulting in six independent SCO sites compared to one at the 100% HS and LS plateau regions, respectively. Variableerature X-ray photoelectron spectroscopy shows that the SCO behavior is completely reversible among the HS, IP, and LS regions. The results both confirm and extend the related results for the above system described by Halcrow et al. (Kulmaczewski, R.; Cespedes, O.; Halcrow, M. A. Gradual Thermal Spin-Crossover Mediated By a Reentrant Z′ = 1 Z′ = 6 Z′ = 1 Phase Transition, Inorg. Chem. 2017, 56, 3144-3148) in a recent report.
Original language | English |
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Pages (from-to) | 3349-3353 |
Number of pages | 5 |
Journal | ACS Omega |
Volume | 2 |
Issue number | 7 |
DOIs | |
Publication status | Published - 2017 |
Open Access - Access Right Statement
Copyright © 2017 American Chemical Society. This is an open access article published under an ACS AuthorChoice License (https://pubs.acs.org/page/policy/authorchoice_termsofuse.html), which permits copying and redistribution of the article or any adaptations for non-commercial purposes.Keywords
- ligands
- metal complexes
- photoelectron spectroscopy