Finkenzeller, W.J. and Yersin, Hartmut (2003) Emission of Ir(ppy)(3). Temperature dependence, decay dynamics, and magnetic field properties. CHEMICAL PHYSICS LETTERS, 377 (3-4). pp. 299-305. ISSN 0009-2614
Full text not available from this repository.Abstract
Emission spectra and decay times of fac-Ir(ppy)(3) dissolved in THF were registered for 1.2 K less than or equal to T less than or equal to 300 K and magnetic fields (at T = 1.5 K) up to B = 10 T. Three emissive triplet substates I, II, and III could be identified and classified as substates of a (MLCT)-M-3 term of (3)(Ir5d-ppypi*) character. The energy separations and decay times are DeltaE(II.I) = 13.5 cm(-1), DeltaE(III.I) = 83 cm(-1) and tau(I) = 145 mus, tau(II) = 11 mus, tau(III) = 750 ns. All three substates are involved in the emission process at 300 K resulting in an average decay time of 2.1 mus. Magnetic field application at T = 1.5 K alters the dominant radiative deactivation process from a forbidden to a significantly allowed process. The magnetic field-induced change of the emission decay rate can be described by a first-order perturbation approach. (C) 2003 Elsevier B.V. All rights reserved.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | <RU(BPY)3>(PF6)2 SINGLE-CRYSTALS; LYING ELECTRONIC STATES; TIME-RESOLVED SPECTRA; EXCITED-STATES; METAL-COMPLEXES; IRIDIUM(III); TUNABILITY; RELAXATION; SUBLEVELS; |
| 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: | 04 Aug 2021 11:50 |
| Last Modified: | 04 Aug 2021 11:50 |
| URI: | https://pred.uni-regensburg.de/id/eprint/38721 |
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