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Impact of lithium and potassium cations on the Mössbauer spectral and electrical properties of two mixed-valence iron(II/III) phosphites
| hal.structure.identifier | Department of Chemistry | |
| dc.contributor.author | GRANDJEAN, Fernande | |
| hal.structure.identifier | Department of Chemistry | |
| dc.contributor.author | LONG, Gary | |
| hal.structure.identifier | Département de Physique [CESAM/Q-MAT, SPIN] | |
| dc.contributor.author | EVRARD, Roger | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | CHUNG, U-Chan | |
| hal.structure.identifier | Facultad de Ciencia y Tecnologia | |
| dc.contributor.author | LARREA, Edurne | |
| hal.structure.identifier | Facultad de Ciencia y Tecnologia | |
| dc.contributor.author | RUIZ DE LARRAMENDI, Idoia | |
| hal.structure.identifier | Facultad de Ciencia y Tecnologia | |
| dc.contributor.author | ARRIORTUA, María Isabel | |
| hal.structure.identifier | Facultad de Ciencia y Tecnologia | |
| dc.contributor.author | ROJO, Teófilo | |
| dc.date.issued | 2020-07-14 | |
| dc.identifier.issn | 0897-4756 | |
| dc.description.abstractEn | Based on the combined corrected chemical analysis, the single-crystal X-ray structural results, and the revised Mössbauer spectral analysis, the best formulation of Li1.4(1)[Fe4.4(1)IIFe0.6(1)III(HPO3)6]·1.47(3) H2O, 1b, has been obtained; also, from a revised Mössbauer spectral analysis, a revised formulation of K0.95(5)[Fe3.95(5)IIFe1.05(5)III(HPO3)6]·0.5 H2O, 2m, has been obtained. The revised analysis of the room-temperature Mössbauer spectral parameters for both compounds is consistent with their crystallographic structures and the different nature and occupancies of the Li+ and K+ crystallographic sites. From a detailed analysis of the impedance spectroscopy measurements of Li1.43[Fe4.43IIFe0.57III(HPO3)6]·1.5 H2O, 1, between 123 and 189 °C, two processes involving the electric charge response to the ac electric field have been identified. An activation energy for the charge transfer in 1 of 0.91(2) eV or 7340(160) cm–1 has been obtained; the charge transfer may involve a correlated hopping of the Li+ ion and an electron between the iron(II) and iron(III) ions. | |
| dc.language.iso | en | |
| dc.publisher | American Chemical Society | |
| dc.title.en | Impact of lithium and potassium cations on the Mössbauer spectral and electrical properties of two mixed-valence iron(II/III) phosphites | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1021/acs.chemmater.0c00354 | |
| dc.subject.hal | Chimie/Matériaux | |
| bordeaux.journal | Chemistry of Materials | |
| bordeaux.page | 5534-5540 | |
| bordeaux.volume | 32 | |
| bordeaux.issue | 13 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-02972707 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-02972707v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Chemistry%20of%20Materials&rft.date=2020-07-14&rft.volume=32&rft.issue=13&rft.spage=5534-5540&rft.epage=5534-5540&rft.eissn=0897-4756&rft.issn=0897-4756&rft.au=GRANDJEAN,%20Fernande&LONG,%20Gary&EVRARD,%20Roger&CHUNG,%20U-Chan&LARREA,%20Edurne&rft.genre=article |
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