The synthesis of Ru and Os complexes of the ligand, N,N′-bis(2-pyridyl)benzene-1,2-diamine namely, [RuIII(acac)2(Py-bqdi)], (9), [RuII(Ph-trpy)(Py-bqdi)Cl], (10) and [OsII(bpy)2(Py-bqdi)](ClO4), (ClO4) [where Py-bqdi = N,N′-dipyridyl-o-benzoquinonediimine, acac = 2,4-pentanedionate, Ph-trpy = 4′-phenyl-2,2′:6′,2″-terpyridine, bpy = 2,2′-bipyridine] is reported. The molecular structures of complexes 9-ClO4 are authenticated by single crystal X-ray diffraction studies. The electronic structural properties of the complexes, in particular, the accessible oxidized/reduced forms of the complexes, are examined by using an array of analytical techniques (magnetic resonance, UV–Vis-NIR spectroscopy and electrochemistry). Comprehensive Density Functional Theory (DFT) calculations have also been carried out to provide additional support to the experimental work.
- Density functional calculation
- Electron paramagnetic resonance
- Molecular structure
- Redox non-innocence