Preparation and Thermochromic Switching between Phosphorescence and Thermally Activated Delayed Fluorescence of Mononuclear Copper(I) Complexes

6533b7d0fe1ef96bd125a2a3

RESEARCH PRODUCT

Preparation and Thermochromic Switching between Phosphorescence and Thermally Activated Delayed Fluorescence of Mononuclear Copper(I) Complexes

Katja Heinze Christoph Förster

subject

chemistry.chemical_classification Thermochromism chemistry.chemical_element General Chemistry Photochemistry Copper Fluorescence Fluorescence spectroscopy Education Coordination complex chemistry.chemical_compound chemistry Pyridine Phosphorescence Luminescence

description

Instructive, inexpensive, and environmentally friendly laboratory syntheses of two highly luminescent copper(I) complexes CuI(PPh3)2(pyR) (pyR = pyridine, 4-cyanopyridine) are described for second-year/upper-division undergraduate inorganic chemistry students. Both complexes exhibit bright thermally activated delayed fluorescence (TADF) at ambient temperature and phosphorescence at low temperature. The laboratory experiments familiarize the students with mechanochemical syntheses, cluster and complex formation, ligand substituent effects, and the fascinating phenomenon of luminescence thermochromism.

year	journal	country	edition	language
2020-05-05	Journal of Chemical Education

https://doi.org/10.1021/acs.jchemed.0c00171

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