Vibrationally resolved electronic spectroscopy of rhodamine B cation at less than 5 K: combining gas phase absorption and matrix isolation fluorescence spectroscopy

0573636 - ÚFCH JH 2025 RIV GB eng J - Článek v odborném periodiku
Debnath, S. - Schäfer, A. - Haupa, K. A. - Strelnikov, D. - Roithová, J. - Jašík, Juraj - Lebedkin, S. - Kappes, M. M.
Vibrationally resolved electronic spectroscopy of rhodamine B cation at less than 5 K: combining gas phase absorption and matrix isolation fluorescence spectroscopy.
Molecular Physics. Roč. 122, 1-2 (2024), č. článku e2223072. ISSN 0026-8976. E-ISSN 1362-3028
Institucionální podpora: RVO:61388955
Klíčová slova: electrospray ionisation * Helium tagging * laser-induced fluorescence * matrix isolation * photodissociation
Obor OECD: Physical chemistry
Impakt faktor: 1.7, rok: 2022
Způsob publikování: Omezený přístup
https://www.tandfonline.com/doi/abs/10.1080/00268976.2023.2223072?journalCode=tmph20

Helium tagging photodissociation action spectroscopy in the gas phase together with laser-induced fluorescence (LIF) spectroscopy in neon matrix has been used to probe the photophysics of electrosprayed rhodamine B cation cooled to < 5 K and studied in two different minimally perturbing environments ([RhB•He]+ as well as [RhB]+ in solid neon). Helium tagging experiments were performed using a newly developed apparatus He-TAG. LIF measurements were carried out using an improved matrix-isolation spectroscopy machine Depo-II. The resulting, partially vibrationally resolved electronic spectra of the S0→S1, resp. S1→S0 transition provide benchmarks for gauging the theoretical description of this prototypical organic dye. As a first approach, we have compared our spectra to TD-DFT-based predictions of vibronic structure at the Franck-Condon (FC) and Franck-Condon Herzberg-Teller (FCHT) levels. Depletion action and fluorescence spectroscopy of rhodamine B cation at < 5 K.
Trvalý link: https://hdl.handle.net/11104/0344034