SPIN FRUSTRATION IN HIGH-SPIN TRIIRON(III) COMPLEXES - AN INELASTIC NEUTRON-SCATTERING STUDY

被引:61
作者
CANNON, RD [1 ]
JAYASOORIYA, UA [1 ]
WU, RW [1 ]
ARAPKOSKE, SK [1 ]
STRIDE, JA [1 ]
NIELSEN, OF [1 ]
WHITE, RP [1 ]
KEARLEY, GJ [1 ]
SUMMERFIELD, D [1 ]
机构
[1] INST MAX VON LAUE PAUL LANGEVIN, F-38042 GRENOBLE, FRANCE
关键词
D O I
10.1021/ja00105a029
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Inelastic neutron scattering spectra in the range 20-200 cm(-1) are used to identify magnetic transitions in exchange-coupled oxo-centered triiron(III) complexes. It is concluded that the triangular cluster in the compound [Fe3O(O2CCD3)(6)(C5D5N)(3)]NO3 is adequately described as isosceles, i.e, with two of the three J-values equal, but that the clusters in K-5[Fe3O(SO4)(6)(D2O)(3)].6D(2)O and [Fe3O(O2CC(CD3)(3))(6)(DOCD3)(3)]Cl are scalene. The deviations of the clusters from equilateral symmetry are discussed in terms of a magnetic Jahn-Teller effect.
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页码:11869 / 11874
页数:6
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