Fe2+ spin transition in [Fe(trz)(Htrz)2](BF4) as evidenced by a variable temperature EPR study
| Autor: | Line Sommier, Olivier Kahn, Janis Kliava, Y. Servant, C. Cantin |
|---|---|
| Přispěvatelé: | Bergeret, Bernadette, Centre de physique moléculaire optique et hertzienne (CPMOH), Université Sciences et Technologies - Bordeaux 1-Centre National de la Recherche Scientifique (CNRS), Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Université de Bordeaux (UB) |
| Rok vydání: | 1997 |
| Předmět: |
Analytical chemistry
Spin transition 02 engineering and technology 010402 general chemistry 01 natural sciences 7. Clean energy Ferrous Ion law.invention law Spectral data Electron paramagnetic resonance ComputingMilieux_MISCELLANEOUS Line (formation) [PHYS]Physics [physics] Chemistry 021001 nanoscience & nanotechnology Atomic and Molecular Physics and Optics 0104 chemical sciences Crystallography Hysteresis Octahedron 13. Climate action Condensed Matter::Strongly Correlated Electrons 0210 nano-technology [PHYS.COND] Physics [physics]/Condensed Matter [cond-mat] |
| Zdroj: | 28th AMPERE Congress 28th AMPERE Congress, Sep 1996, Canterbury, United Kingdom. pp.81-86 |
| ISSN: | 1613-7507 0937-9347 |
| DOI: | 10.1007/bf03161993 |
| Popis: | The EPR of Fe3+ ions has been used for the first time to evidence a low-spin (S=0) to high-spin (S=2) transition of Fe2+ ions in an octahedral ferrous complex [Fe(trz)(Htrz)2](BF4). The temperature dependence of the intensity of the Fe3+ EPR line atg=4.3 reveals a spin transition which occurs for the Fe2+ ions, with hysteresis. The transition temperatures areT c↑=374 K in the warming mode andT c↓=345 K in the cooling mode. The analysis of the EPR spectral data indicates the presence of a structural phase transition accompanying the spin transition. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink