Reversible electrochemical and chemical addressing of optical properties of ternary Os(II) polypyridyl complexes

Electrochemical- and chemical-induced variation of the metal oxidation state of ternary Os(II) polypyridyl complexes triggers reversible changes in optical properties. This read/write process can be carried out conveniently and monitored with optical (UV/Vis or luminescence) spectrophotometers. An excellent sensitivity and reversibility may make it a suitable candidate for integration of molecular sensors and logic gate system.