Czerwieniec, Rafal and Hofbeck, Thomas and Crespo, Olga and Laguna, Antonio and Concepcion Gimeno, M. and Yersin, Hartmut (2010) The Lowest Excited State of Brightly Emitting Gold(I) Triphosphine Complexes. INORGANIC CHEMISTRY, 49 (8). pp. 3764-3767. ISSN 0020-1669,
Full text not available from this repository. (Request a copy)Abstract
The strongly luminescent neutral gold(I) triphosphine complexes [Au(dipnc)(PPh(3))] and [Au(dppnc)(PPh(3))] with dipnc = 7,8-bis(diisopropylphosphino)-nido-carborane ([(PiPr(2))(2)B(9)H(10)C(2))](-)) and dppnc = 7,8-bis(diphenylphosphino)-nido-carborane ([(PPh(2))(2)B(9)H(10)C(2)](-)) are studied in a wide range of temperatures of 1.5 <= T <= 300 K. Analysis of the emission decay dynamics provides detailed information about the lowest triplet state. In particular, the magnitude of zero-field splitting of the emitting state is determined to be 47 and 29 cm(-1) for [Au(dipnc)(PPh(3))] and [Au(dppnc)(PPh(3))], respectively. The emission decay times of the individual triplet substates lie in the range of 4 to 130 us. The observed photophysical properties suggest that the molecular orbitals involved in the lowest electronic transitions exhibit, beside gold orbitals, considerable contributions from nonmetallic ligand orbitals. OLED or sensor application of these complexes is suggested.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | RESOLUTION OPTICAL SPECTROSCOPY; TRIPLET-STATE; ELECTROLUMINESCENT DEVICES; PHOTOPHYSICAL PROPERTIES; TEMPERATURE-DEPENDENCE; PHOSPHINE COMPLEXES; ELECTRONIC STATES; OLED APPLICATIONS; MAGNETIC-FIELDS; SPIN SUBLEVELS; |
| Subjects: | 500 Science > 570 Life 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: | 03 Aug 2020 06:07 |
| Last Modified: | 03 Aug 2020 06:07 |
| URI: | https://pred.uni-regensburg.de/id/eprint/24817 |
Actions (login required)
 |
View Item |
