Ruthenium(II) polyimine complexes with a long-lived 3IL excited state or a 3MLCT/3 IL equilibrium: efficient triplet sensitizers for low-power upconversion
Angew Chem Int Ed Engl. 2011 Feb 11;50(7):1626-9.
doi: 10.1002/anie.201006192.
Epub 2011 Jan 11.