Inelastic neutron scattering study of undeuterated [Mn9O7(OAc)11(thme)(py)3(H2O)2]

被引：4
作者：
Bircher, R
Chaboussant, G
Ochsenbein, ST
Fernandez-Alonso, F
Güdel, HU
Brechin, EK
机构：
[1] Univ Bern, Dept Chem & Biochem, CH-3000 Bern, Switzerland
[2] CEA Saclay, Leon Brillouin Lab, F-91191 Gif Sur Yvette, France
[3] Rutherford Appleton Lab, ISIS Dept, Didcot OX11 0QX, Oxon, England
[4] Univ Edinburgh, Sch Chem, Edinburgh EH9 3JJ, Midlothian, Scotland
来源：
POLYHEDRON | 2005年 / 24卷 / 16-17期
关键词：
single-molecule magnets; inelastic neutron scattering; magnetic anisotropy; manganese;
D O I：
10.1016/j.poly.2005.03.062
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
We report on the magnetic properties of the enneanuclear mixed-valent single-molecule magnet [Mn9O7(OAc)(11)(thme)(py)(3)(H2O)(2)] (1). Using inelastic neutron scattering (INS) spectroscopy, we have confirmed the S= 17/2 cluster ground state of 1. Furthermore, we have determined accurately the anisotropy parameters of the zero field split ground state. The cluster I exhibits 2 a strong negative axial anisotropy D[S-z(2) - S(S + 1)/3] where D = -0.249(5) cm(-1). It is necessary to include an axial higher order term (B-4(0)) in the effective spin Hamiltonian to account for the experimental data. 4 (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2455 / 2458
页数：4
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