NDLI: Molecule-Based Magnetic Compounds Made Up from Dinuclear Ruthenium(II,III) Carboxylate and Dicyanidoargentate(I)

Content Provider	Springer Nature Link
Author	Mikuriya, Masahiro Tanaka, Yusuke Yoshioka, Daisuke Handa, Makoto
Copyright Year	2014
Abstract	Mixed-metal complexes constructed from mixed-valent dinuclear ruthenium(II,III) carboxylate and dicyanidoargentate(I), K[Ru$_{2}$(O$_{2}$CCH$_{3}$)$_{4}$Ag(CN)$_{2}$]⋅4H$_{2}$O (1) and K$_{2.5}$[Ru$_{2}${O$_{2}$CC(CH$_{3}$)$_{3}$}$_{4}$(Ag(CN)$_{2}$)$_{3.5}$]⋅3H$_{2}$O (2), were synthesized and characterized by elemental analysis and IR and UV-visible-NIR spectroscopies. These data supported the formulation of mixed-metal adduct of Ru$_{2}$(O$_{2}$CCH$_{3}$)$_{4}$ $^{+}$ with two Ag(CN)$_{2}$ $^{−}$ for 1 and mixed-metal dimer of Ru$_{2}${O$_{2}$CC(CH$_{3}$)$_{3}$}$_{4}$ $^{+}$ with aggregated {Ag(CN)$_{2}$ $^{−}$}$_{2or3}$ through argentophilic Ag ⋅⋅⋅ Ag interaction for 2, respectively. A broadband (δ(Ru$_{2}$) → δ $^{∗}$(Ru$_{2}$)) at near-IR and two bands(δ $^{∗}$/π $^{∗}$ (Ru$_{2}$) → σ $^{∗}$□u−O and π(Ru-O, Ru$_{2}$) → π $^{∗}$(Ru$_{2}$)) at visible region were observed in the diffused reflectance spectra (920sh, 634, and 444 nm for 1 and 930sh, 638, and 478 nm for 2, respectively). Temperature dependence of magnetic susceptibility measurement (4.5–300 K) showed that the former is paramagnetic (S = 3/2) with D (zero-field splitting parameter) = 78 cm$^{−1}$ and the latter weakly antiferromagnetic with g = 2.07, zJ (the exchange integral multiplied by the number of interacting neighbors) =−0.5 cm$^{−1}$, and D = 90 cm$^{−1}$.
Starting Page	1013
Ending Page	1016
Page Count	4
File Format	PDF
ISSN	15571939
Journal	Journal of Superconductivity and Novel Magnetism
Volume Number	28
Issue Number	3
e-ISSN	15571947
Language	English
Publisher	Springer US
Publisher Date	2014-08-12
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Magnetic susceptibility Antiferromagnetic interaction Dinuclear ruthenium(II III) carboxylate Dicyanidoargentate(I) Strongly Correlated Systems, Superconductivity Magnetism, Magnetic Materials Condensed Matter Physics Characterization and Evaluation of Materials
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Condensed Matter Physics

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