Cis-Bis(2,2′-Azopyridinido)dicarbonylruthenium(II)

Abstract

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.

Nitrogen-Containing Molecules: Natural and Synthetic Products including Coordination Compounds

“…They reported a newly synthesized diradical neutral dicarbonylruthenium(II) complex, bearing two azopyridyl ligands coordinated as anion radicals, by introducing in its structure two CO molecules as ligand and reducing agents. Further magnetic studies on the complex revealed paramagnetic and antiferromagnetic interactions between the spins in each radical [21].…”