The electronic states of types [RuII(PIQ˙−)], [RuIII(PIQ˙−)], [RuIII2(PIQ˙−)2], [RuIII2(PIQ˙−)(PIQ)] and [RuIII(PIQ)] (PIQ = 9,10-phenanthreneiminoquinone) were substantiated by the single crystal X-ray structure determinations, EPR spectra, cyclic voltammetry, DFT calculations and compared with those of 9,10-phenanthrenequinone (PQ) analogues.