Synthesis and magnetic properties of polymeric complexes containing ruthenium(II)-ruthenium(III) tetracarboxylato units linked by cyanato, thiocyanato, and selenocyanato ligands

被引：13
|
作者：
Handa, Makoto [1 ]
Ishida, Hideaki [2 ,3 ]
Ito, Kayoko [1 ]
Adachi, Toshihiro [1 ]
Ikeue, Takahisa [1 ]
Hiromitsu, Ichiro [1 ]
Mikuriya, Masahiro [2 ,3 ]
Kasuga, Kuninobu [1 ]
机构：
[1] Shimane Univ, Interdisciplinary Fac Sci & Engn, Dept Mat Sci, Matsue, Shimane 6908504, Japan
[2] Kwansei Gakuin Univ, Sch Sci & Technol, Dept Chem, Sanda 6691337, Japan
[3] Kwansei Gakuin Univ, Sch Sci & Technol, Open Res Ctr Coordinat Mol Based Devices, Sanda 6691337, Japan
来源：
CHEMICAL PAPERS | 2008年 / 62卷 / 04期
关键词：
polymeric complexes; ruthenium(II)-ruthenium(III); tetracarboxylate; alkyl chains; cyanate; magnetic properties;
D O I：
10.2478/s11696-008-0049-4
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Polymeric complexes of ruthenium(II)-ruthenium(III) tetracarboxylato units linked by cyanato, thiocyanato, and selenocyanato ligands [Ru-2{O2C(CH2)(m)CH3}(4)(L)] (n) (m = 0, 4-7; L = OCN-, SCN-, and SeCN-) were prepared and characterized based on the elemental analyses, IR, and diffuse reflectance spectra. Magnetic susceptibilities were measured at the temperature range of 4.5 K to 300 K, where the interdimer antiferromagnetic interactions were revealed. The strongest interaction was exhibited in case of m = 7 and L = OCN-. H-1-NMR spectra of [Ru{O2C(CH2)(7)CH3}(4)(SCN)] (n) in CD2Cl2 showed broad signals which can be ascribed to polymeric species, as the addition of tetrabutylammonium thiocyanate caused sharper signals due to the formation of [Ru-2{O2C(CH2)(7)CH3}(4)(SCN)(2)](-) adduct as the main species in the solution. (C) 2008 Institute of Chemistry, Slovak Academy of Sciences.
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收藏
页码：410 / 416
页数：7
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