Krafft, Mila (2024) Ultrafast quenching dynamics of [Re(dmpe)3]2+ beyond the limit of diffusion. Master's Internship Report, Chemistry.
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Abstract
The ultrafast charge transfer quenching dynamics of the [Re(dmpe)3] 2+ 2LMCT state by anisole,1-methoxynaphthalene, toluene and benzene are studied with single wavelength femtosecond transient absorption spectroscopy. The quenching rate increases up to 50 vol% of anisole, above which it remains constant. This is considered the close-contact regime where diffusion does not influence charge separation and charge recombination rates. There are indications that the [Re(dmpe)3]2+ excited state undergoes hot charge separation with anisole. In the close-contact regime, the charge separation andcharge recombination kinetics are evaluated for anisole, 1-methoxynaphthalene, toluene and benzene. The charge transfer behaviour of the [Re(dmpe)3]2+ 2LMCT state at high quencher concentrations is explainable with Marcus theory. Charge separation rates follow normal Marcus behavior while charge recombination falls into the inverted Marcus regime.
| Item Type: | Thesis (Master's Internship Report) |
|---|---|
| Supervisor name: | Tromp, M. and Browne, W.R. |
| Degree programme: | Chemistry |
| Thesis type: | Master's Internship Report |
| Language: | English |
| Date Deposited: | 29 Apr 2024 10:09 |
| Last Modified: | 29 Apr 2024 10:09 |
| URI: | https://fse.studenttheses.ub.rug.nl/id/eprint/32346 |
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