Long-lived emission beyond 1000 nm: control of excited-state dynamics in a dinuclear Tb(iii)–Nd(iii) complex

Abstract

A long-lived near-infrared Nd(III) emission is demonstrated using a Tb(III) donor. The observed emission lifetime of 290 μs at 1057 nm for a Tb(III)–Nd(III) dinuclear complex is attributed to the long-lived Tb(III) donor and the appropriate spacing between the lanthanide ions. This design strategy leads to novel lanthanide photophysics.