Interplay between spin crossover and exchange interaction in iron(lll) complexes
- verfasst von
- Roman Boča, Ivan Nemec, Ivan Šalitroš, Ján Pavlik, Radovan Herchel, Franz Renz
- Abstract
In the dinuclear and polynuclear metal complexes exhibiting the low-spin (LS) tohigh-spin (HS) transition, the spin-crossover phenomenon interferes with the magneticexchange interaction. The latter manifests itself in forming spin-multiplets, which causes apossible overlap of the band originating in different reference spin states (LL, LH, HL, andHH). A series of dinuclear Fe(III) complexes has been prepared; the iron centers are linkedby a bidentate bridge (CN~, and diamagnetic metallacyanates {Fe(CN)5(NO)},{Ni(CN) 4}, {Pt(CN)4}, and {Ag(CN)2}). Magneticmeasurements confirm that the spin crossover proceeds on the thermal propagation. Thisinformation has been completed also by the Mossbauer spectral (MS) data. A theoreticalmodel has been developed that allows a simultaneous fitting of all available experimentaldata (magnetic susceptibility, magnetization, HS mole fraction) on a common set ofparameters.
- Organisationseinheit(en)
-
Institut für Anorganische Chemie
- Externe Organisation(en)
-
Slowakische Technische Universität Bratislava (STU)
Palacky University
- Typ
- Artikel
- Journal
- Pure and applied chemistry
- Band
- 81
- Seiten
- 1357-1383
- Anzahl der Seiten
- 27
- ISSN
- 0033-4545
- Publikationsdatum
- 2009
- Publikationsstatus
- Veröffentlicht
- Peer-reviewed
- Ja
- ASJC Scopus Sachgebiete
- Allgemeine Chemie, Allgemeine chemische Verfahrenstechnik
- Elektronische Version(en)
-
https://doi.org/10.1351/PAC-CON-08-07-20 (Zugang:
Unbekannt)
