Details
| Original language | English |
|---|---|
| Pages (from-to) | 2036-2038 |
| Number of pages | 3 |
| Journal | POLYHEDRON |
| Volume | 28 |
| Issue number | 9-10 |
| Publication status | Published - 22 Jun 2009 |
Abstract
The precursor [FeIII(L)Cl] (LH2 = N,N′-bis(2′-hydroxy-benzyliden)-1,6-diamino-3-azahexane) has been prepared and Mössbauer spectroscopy assigned a high-spin (S = 5/2) state at room temperature. The precursor is combined with the bridging units [SbV(X)6]- (X = CN-, NCS-) to yield star-shaped heptanuclear clusters [(LFeIII-X)6SbV]Cl5. The star-shaped compounds are in general high-spin systems at room temperature. On cooling to 20 K some of the iron(III) centers switch to the low-spin state as indicated by Mössbauer spectroscopy, i.e. multiple electronic transitions. While the cyano-bridged complex performs a multiple spin transition the thiocyanate-compound shows no significant population at both temperatures.
Keywords
- Heptanuclear, High-spin molecule, Multiple spin transition, Multistability, Sb
ASJC Scopus subject areas
- Chemistry(all)
- Physical and Theoretical Chemistry
- Chemistry(all)
- Inorganic Chemistry
- Materials Science(all)
- Materials Chemistry
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In: POLYHEDRON, Vol. 28, No. 9-10, 22.06.2009, p. 2036-2038.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Spin transition in heptanuclear star-shaped iron(III)-antimony(V) NCS- and CN-bridged compounds
AU - Renz, F.
AU - Zaba, C.
AU - Roßberg, L.
AU - Jung, St
AU - Klein, M.
AU - Klingelhöfer, G.
AU - Wünsche, A.
AU - Reinhardt, S.
AU - Menzel, M.
N1 - Funding Information: This work was partly funded by the University of Mainz (“Forschungsfond”; MWFZ), the Leibniz University of Hannover, and the “Deutsche Forschungsgemeinschaft” (DFG: Re-1627/1-3).
PY - 2009/6/22
Y1 - 2009/6/22
N2 - The precursor [FeIII(L)Cl] (LH2 = N,N′-bis(2′-hydroxy-benzyliden)-1,6-diamino-3-azahexane) has been prepared and Mössbauer spectroscopy assigned a high-spin (S = 5/2) state at room temperature. The precursor is combined with the bridging units [SbV(X)6]- (X = CN-, NCS-) to yield star-shaped heptanuclear clusters [(LFeIII-X)6SbV]Cl5. The star-shaped compounds are in general high-spin systems at room temperature. On cooling to 20 K some of the iron(III) centers switch to the low-spin state as indicated by Mössbauer spectroscopy, i.e. multiple electronic transitions. While the cyano-bridged complex performs a multiple spin transition the thiocyanate-compound shows no significant population at both temperatures.
AB - The precursor [FeIII(L)Cl] (LH2 = N,N′-bis(2′-hydroxy-benzyliden)-1,6-diamino-3-azahexane) has been prepared and Mössbauer spectroscopy assigned a high-spin (S = 5/2) state at room temperature. The precursor is combined with the bridging units [SbV(X)6]- (X = CN-, NCS-) to yield star-shaped heptanuclear clusters [(LFeIII-X)6SbV]Cl5. The star-shaped compounds are in general high-spin systems at room temperature. On cooling to 20 K some of the iron(III) centers switch to the low-spin state as indicated by Mössbauer spectroscopy, i.e. multiple electronic transitions. While the cyano-bridged complex performs a multiple spin transition the thiocyanate-compound shows no significant population at both temperatures.
KW - Heptanuclear
KW - High-spin molecule
KW - Multiple spin transition
KW - Multistability
KW - Sb
UR - http://www.scopus.com/inward/record.url?scp=66149168561&partnerID=8YFLogxK
U2 - 10.1016/j.poly.2008.12.027
DO - 10.1016/j.poly.2008.12.027
M3 - Article
AN - SCOPUS:66149168561
VL - 28
SP - 2036
EP - 2038
JO - POLYHEDRON
JF - POLYHEDRON
SN - 0277-5387
IS - 9-10
ER -