Synthesis, crystal structure, and spectral and magnetic properties of chloro-bridged chain complex of dinuclear ruthenium(II,III) 3,4,5-triethoxybenzoate
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2023-12-11 18:22
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ISHIDA, Hideaki, HANDA, Makoto, HIROMITSU, Ichiro, MIKURIYA, Masahiro. Synthesis, crystal structure, and spectral and magnetic properties of chloro-bridged chain complex of dinuclear ruthenium(II,III) 3,4,5-triethoxybenzoate. In: Chemistry Journal of Moldova, 2009, nr. 1(4), pp. 90-96. ISSN 1857-1727.
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Chemistry Journal of Moldova
Numărul 1(4) / 2009 / ISSN 1857-1727 /ISSNe 2345-1688

Synthesis, crystal structure, and spectral and magnetic properties of chloro-bridged chain complex of dinuclear ruthenium(II,III) 3,4,5-triethoxybenzoate

Pag. 90-96

Ishida Hideaki, Handa Makoto, Hiromitsu Ichiro, Mikuriya Masahiro
 
 
Disponibil în IBN: 2 decembrie 2013


Rezumat

A chloro-bridged chain complex constructed from paddlewheel-type dinuclear ruthenium(II,III) carboxylate units, [Ru2{3,4,5-(C2 H5O)3C6H2CO2}4Cl]n·1.2nC2H5OH (1·1.2nC2H5OH), was synthesized and characterized by elemental analysis and IR and UV-vis spectroscopies. The single-crystal X-ray analysis showed that the complex forms a zig-zag chain structure, in which the chloro ligands bridge the dinuclear units at the axial positions with the Ru1–Cl–Ru2 angle of 120.38(7)°. A broad band around 1144 nm and a band at 475 nm were observed in the diffused reflectance spectra and ascribed to a δ→δ* and a π(RuO, Ru2)→π*(Ru2) transitions, respectively. Temperaturedependence of magnetic susceptibility showed that the antiferromagnetic interaction between the dinuclear units is weak (zJ = −0.8 cm−1) with D value of 60 cm−1.

Cuvinte-cheie
dinuclear ruthenium(II, III) carboxylate; magnetic property; chloro-bridged complex; polymeric complex