The new complex [Ru(tpy)(Me2dppn)(py)]2+ efficiently photodissociates py in CH3CN with Φ500 = 0.053(1) induced by steric bulk from methyl substituents and produces 1O2 with ΦΔ = 0.69(9) from its long-lived 3ππ* excited state. The unique excited state processes that result in dual reactivity were investigated using ultrafast transient absorption spectroscopy.
J. D. Knoll, B. A. Albani and C. Turro, Chem. Commun., 2015, 51, 8777 DOI: 10.1039/C5CC01865J
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