Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 57, Issue 46, Pages 15172-15176Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201810022
Keywords
erbium complexes; excited-state absorption; molecular upconversion
Categories
Funding
- Swiss National Science Foundation
Ask authors/readers for more resources
To date, the piling up of successive photons of low energies (near infrared; NIR) using a single lanthanide center and linear optics to ultimately produce upconverted visible emission was restricted to low-phonon solid materials and nanoparticles. Now we show that the tight helical wrapping of three terdentate N-donor ligands around a single nine-coordinate trivalent erbium cation provides favorable conditions for a mononuclear molecular complex to exhibit unprecedented related upconverted emission. Low power NIR laser excitations into the metal-centered transitions Er(I-4(11/2) -> I-4(15/2)) at 801 nm or Er(I-4(13/2) -> I-4(15/2)) at 966 nm result in upconverted blue-green emissions, where two or three photons respectively are successively absorbed by a molecular lanthanide complex possessing high-energy vibrations.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available