Scientific article
Open access

A Near‐Infrared‐II Emissive Chromium(III) Complex

Published inAngewandte Chemie (International Edition), vol. 60, no. 44, p. 23722-23728
Publication date2021-07-12
First online date2021-07-12

The combination of π-donating amido with π-accepting pyridine coordination units in a tridentate chelate ligand causes a strong nephelauxetic effect in a homoleptic CrIII complex, which shifts its luminescence to the NIR-II spectral range. Previously explored CrIII polypyridine complexes typically emit between 727 and 778 nm (in the red to NIR-I spectral region), and ligand design strategies have so far concentrated on optimizing the ligand field strength. The present work takes a fundamentally different approach and focusses on increasing metal–ligand bond covalence to shift the ruby-like 2E emission of CrIII to 1067 nm at 77 K.

  • UV/Vis spectroscopy
  • Chelates
  • Chromium
  • Luminescence
  • Photophysics
Research group
Citation (ISO format)
SINHA, Narayan et al. A Near‐Infrared‐II Emissive Chromium(III) Complex. In: Angewandte Chemie (International Edition), 2021, vol. 60, n° 44, p. 23722–23728. doi: 10.1002/anie.202106398
Main files (1)
Article (Accepted version)
ISSN of the journal1433-7851

Technical informations

Creation11/23/2021 11:04:00 AM
First validation11/23/2021 11:04:00 AM
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