Electron transfer phase transition and oxidization process in NaCoMn[Fe(CN)] (0.00 ≤ ≤ 1.60)
We investigated the phase diagram of Na x Co 0.44 Mn 0.56 [Fe(CN) 6 ] 0.90 in the entire Na concentration range of 0.00 ≤ x ≤ 1.60. We found that the compound shows an electron transfer (ET) phase transition in a wide x range of 0.19 ≤ x ≤ 1.38. The extended ET model well reproduces the variation of...
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| Published in | Chemical communications (Cambridge, England) Vol. 57; no. 1; pp. 137 - 1373 |
|---|---|
| Main Authors | , , |
| Format | Journal Article |
| Published |
16.12.2021
|
| Online Access | Get full text |
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| Summary: | We investigated the phase diagram of Na
x
Co
0.44
Mn
0.56
[Fe(CN)
6
]
0.90
in the entire Na concentration range of 0.00 ≤
x
≤ 1.60. We found that the compound shows an electron transfer (ET) phase transition in a wide
x
range of 0.19 ≤
x
≤ 1.38. The extended ET model well reproduces the variation of the [Fe
2+
(CN)
6
]
4−
and [Fe
3+
(CN)
6
]
3−
concentration at the phase transition. The ET phase transition reverses the oxidation process of the compound; the process is in the order of Co, Mn, and Fe (Fe, Mn, and Co) in the low (high) temperature phase.
The electron transfer phase transition in Prussian blue analogues reverses the order of oxidation among Fe, Mn, and Co. |
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| Bibliography: | 10.1039/d1cc05727h Electronic supplementary information (ESI) available. See DOI |
| ISSN: | 1359-7345 1364-548X |
| DOI: | 10.1039/d1cc05727h |