Department of Natural Sciences and Informatics, Fukushima University, 1 Kanayagawa, Fukushima 960-1296, Japan
Graduate School of Science and Engineering, Fukushima University, 1 Kanayagawa, Fukushima 960-1296, Japan
Authors to whom correspondence should be addressed.
Academic Editors: Dimitrios Matiadis and Eleftherios Halevas
Molbank 2021, 2021(1), M1182; https://doi.org/10.3390/M1182
Received: 28 December 2020 / Accepted: 15 January 2021 / Published: 18 January 2021
(This article belongs to the Special Issue Nitrogen-Containing Molecules: Natural and Synthetic Products Including Coordination Compounds)
An [Ru(apy)2Cl2] precursor (apy = 2,2′-azopyridine) in 2-methoxyethanol was heated under a pressurized CO atmosphere to afford a diradical complex, [Ru(apy·−)2(CO)2], containing one-electron-reduced azo anion radical ligands. The electronic states of the complex were characterized by spectroscopic techniques and computational studies. Magnetic measurements revealed the existence of antiferromagnetic interactions in the diradical complex.