Heterometallic Chain Compounds of Tetrakis(µ-carboxylato)diruthenium and Tetracyanidoaurate

Autor: Masahiro Mikuriya, Yusuke Tanaka, Daisuke Yoshioka, Motohiro Tsuboi, Hidekazu Tanaka, Makoto Handa
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Magnetochemistry, Vol 8, Iss 5, p 48 (2022)
Druh dokumentu: article
ISSN: 2312-7481
DOI: 10.3390/magnetochemistry8050048
Popis: Heterometallic complexes of tetrakis(µ-carboxylato)diruthenium(II,III) with tetracyanidoaurate(III) [Ru2(RCOO)4Au(CN)4]n (R = CH3 (1), C2H5 (2), i-C3H7 (3), and t-C4H9 (4)) were synthesized and characterized by C,H,N-elemental analysis and infrared spectroscopy and diffuse reflectance spectroscopy. The molecular structures were determined by a single-crystal X-ray diffraction method. A polymeric arrangement with the Ru2(RCOO)4+ units alternately linked by Au(CN)4− units is formed in these complexes. The trans-bridging mode of the Au(CN)4− unit for connecting the two Ru2(RCOO)4+ units was observed for 1 and 4, while the cis-bridging mode of the Au(CN)4− unit was observed for 2 and 3. Magnetic susceptibility data with variable temperature were modeled with a zero-field splitting model (D = 75 cm−1) and the presence of weak antiferromagnetic coupling between the RuIIRuIII units (zJ = −0.15~−0.10 cm−1) was estimated. N2-adsorption isotherms showed Type II curves with SBET of 0.728–2.91 m2 g−1.
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