Details
| Original language | English |
|---|---|
| Pages (from-to) | 1357-1383 |
| Number of pages | 27 |
| Journal | Pure and applied chemistry |
| Volume | 81 |
| Issue number | 8 |
| Publication status | Published - 2009 |
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.
Keywords
- Exchange interaction, Fe(III) complexes, Magnetism, Mössbauerspectra, Spin crossover
ASJC Scopus subject areas
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In: Pure and applied chemistry, Vol. 81, No. 8, 2009, p. 1357-1383.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Interplay between spin crossover and exchange interaction in iron(lll) complexes
AU - Boča, Roman
AU - Nemec, Ivan
AU - Šalitroš, Ivan
AU - Pavlik, Ján
AU - Herchel, Radovan
AU - Renz, Franz
N1 - Funding Information: Grant agencies (Slovakia: VEGA 1/0213/08, APVV 0006-07, COST-0006-06, VVCE 0004-07, APVV-Stefanik; Germany: DFG SPP 1137 Re1627/1-3, Leibniz UNI; Czech Republic: MSM6198959218; ESF: COST-D35) are acknowledged for the financial support. Prof. J. Linares (University of Versailles, France) is acknowledged for scanning a part of the MS.
PY - 2009
Y1 - 2009
N2 - 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.
AB - 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.
KW - Exchange interaction
KW - Fe(III) complexes
KW - Magnetism
KW - Mössbauerspectra
KW - Spin crossover
UR - http://www.scopus.com/inward/record.url?scp=69949124406&partnerID=8YFLogxK
U2 - 10.1351/PAC-CON-08-07-20
DO - 10.1351/PAC-CON-08-07-20
M3 - Article
AN - SCOPUS:69949124406
VL - 81
SP - 1357
EP - 1383
JO - Pure and applied chemistry
JF - Pure and applied chemistry
SN - 0033-4545
IS - 8
ER -