jz401699e_si_001.pdf (839.66 kB)
Fully Efficient Direct Yb-to-Er Energy Transfer at Molecular Level in a Near-Infrared Emitting Heterometallic Trinuclear Quinolinolato Complex
journal contribution
posted on 2015-12-16, 23:33 authored by Flavia Artizzu, Francesco Quochi, Luciano Marchiò, Elisa Sessini, Michele Saba, Angela Serpe, Andrea Mura, Maria
Laura Mercuri, Giovanni Bongiovanni, Paola DeplanoCombined
chemical/photophysical studies on the mixed Yb–Er
trinuclear lanthanide quinolinolato compound Yb2ErQ9 and on the corresponding Yb3Q9 analogue
have been performed. In the mixed-metal molecular species, the ligands,
acting as a bridge, allow the two metals to lie at optimal distance
for direct Yb-to-Er resonance energy transfer, which reaches nearly
unitary efficiency. The obtained results show that polynuclear lanthanide
complexes provide a suitable strategy for achieving effective erbium
sensitization in solution-processable molecular materials.