TY - JOUR
T1 - Double-exchange interactions in the mixed-valence hexanuclear octahedral clusters [Fe6(μ3-X)8(PEt3)6]+ (X = S, Se)
AU - Bencini, Alessandro
AU - Palii, Andrew V.
AU - Ostrovsky, Sergei M.
AU - Tsukerblat, Boris S.
AU - Uytterhoeven, Myriam G.
N1 - Funding Information:
Thanks are expressed to Dr A. Caneschi, Universit~ di Firenze, for the magnetic measurements. B.S.T., A.V.P. and S.M.O. thank the International Science Foundation (grant NMY 1000) for the financial support. M.G.U. thanks the European Community for a research grant.
PY - 1995/12/10
Y1 - 1995/12/10
N2 - A model that considers the double exchange and isotropic exchange is developed to account for the magnetic properties of the hexanuclear octahedral clusters [Fe6(μ3-X8)(PEt3)6]+ (X = S, Se), in which one extra electron added to the [Fe6(μ3-X8)(PEt3)6]2+ is delocalized over six structurally equivalent iron centres. The ground state of the complexes is S = 7/2 and, in our model, it can arise from either a ferromagnetic or an antiferromagnetic exchange interaction between the unpaired spins on Fe, provided that the sign of the transfer integral p is negative.
AB - A model that considers the double exchange and isotropic exchange is developed to account for the magnetic properties of the hexanuclear octahedral clusters [Fe6(μ3-X8)(PEt3)6]+ (X = S, Se), in which one extra electron added to the [Fe6(μ3-X8)(PEt3)6]2+ is delocalized over six structurally equivalent iron centres. The ground state of the complexes is S = 7/2 and, in our model, it can arise from either a ferromagnetic or an antiferromagnetic exchange interaction between the unpaired spins on Fe, provided that the sign of the transfer integral p is negative.
UR - https://www.scopus.com/pages/publications/0001620692
U2 - 10.1080/00268979500102601
DO - 10.1080/00268979500102601
M3 - Article
AN - SCOPUS:0001620692
SN - 0026-8976
VL - 86
SP - 1085
EP - 1097
JO - Molecular Physics
JF - Molecular Physics
IS - 5
ER -
