Magnetism of cyano-bridged hetero-one-dimensional Ln3+-M3+ complexes (Ln3+ = Sm, Gd, Yb; M3+ = FeLS, Co)

被引：90

作者：

Figuerola, A

Diaz, C

Ribas, J

Tangoulis, V

Sangregorio, C

Gatteschi, D

Maestro, M

Mahía, J

机构：

[1] Univ Barcelona, Dept Quim Inorgan, E-08028 Barcelona, Spain

[2] Univ Patras, Dept Mat Sci, Patras 26500, Greece

[3] Univ Florence, Dept Chem, Polo Sci Univ, UdR INSTM, I-50019 Sesto Fiorentino, Italy

[4] Univ A Coruna, Serv Xerias Apoio Invest, La Coruna 15071, Spain

来源：

INORGANIC CHEMISTRY | 2003年 / 42卷 / 17期

关键词：

D O I：

10.1021/ic034051j

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The reaction of Ln(NO3)(3).aq with K-3[Fe(CN)(6)] Or K-3[Co(CN)(6)] and 2,2'-bipyridine in water led to five one-dimensional complexes: trans-[M(CN)(4)(mu-CN)(2)Ln(H2O)(4) (bpy)](n).XnH(2)O.1.5nbpy (M = Fe3+ or CO3+; Ln = Sm3+, Gd3+, or Yb3+; X = 4 or 5). The structures for [Fe3+-Sm3+] (1), [Fe3+-Gd3+] (2), [Fe3+-Yb3+] (3), [CO3+-Gd3+] (4), and [CO3+-Yb3+] (5) have been solved; they crystallize in the triclinic space P (1) over bar and are isomorphous. The [Fe3+-SM3+] complex is a ferrimagnet, its magnetic studies suggesting the onset of weak ferromagnetic 3-D ordering at 3.5 K. The [Fe3+-Gd3+] interaction is weakly antiferromagnetic. The isotropic nature of Gd3(+) allowed us to evaluate the exchange interaction (J = 0.77 cm(-1)).

引用

页码：5274 / 5281

页数：8

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[42] Construction of 3d-4f heterometallic coordination polymers by simultaneous use of hexacyanometalate building-blocks and exo-bidentate ligands [J].