Gneuss, Timo and Leitl, Markus J. and Finger, Lars H. and Rau, Nicholas and Yersin, Hartmut and Sundermeyer, Joerg (2015) A new class of luminescent Cu(I) complexes with tripodal ligands - TADF emitters for the yellow to red color range. DALTON TRANSACTIONS, 44 (18). pp. 8506-8520. ISSN 1477-9226, 1477-9234
Full text not available from this repository. (Request a copy)Abstract
A new class of emissive and neutral Cu(I) compounds with tripodal ligands is presented. The complexes were characterized chemically, computationally, and photophysically. Under ambient conditions, the powders of the compounds exhibit yellow to red emission with quantum yields ranging from about 5% to 35%. The emission represents a thermally activated delayed fluorescence (TADF) combined with a short-lived phosphorescence which represents a rare situation and is a consequence of high spin-orbit coupling (SOC). In the series of the investigated compounds the non-radiative rates increase with decreasing emission energy according to the energy gap law while the radiative rate is almost constant. Furthermore, a well-fit linear dependence between the experimental emission energies and the transition energies calculated by DFT and TD-DFT methods could be established, thus supporting the applicability of these computational methods also to Cu(I) complexes.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | LIGHT-EMITTING-DIODES; CU-I COMPLEXES; 3-COORDINATE COPPER(I) COMPLEXES; ACTIVATED DELAYED FLUORESCENCE; PHOTOPHYSICAL PROPERTIES; CRYSTAL-STRUCTURE; METAL-COMPLEXES; CHARGE-TRANSFER; EXCITED-STATES; COORDINATION-COMPOUNDS; |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie > Chair of Chemistry III - Physical Chemistry (Molecular Spectroscopy and Photochemistry) > Prof. Dr. Hartmut Yersin |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 31 Jul 2019 08:56 |
| Last Modified: | 31 Jul 2019 08:56 |
| URI: | https://pred.uni-regensburg.de/id/eprint/6250 |
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