Turkish Journal of Chemistry
Abstract
The energy transfer between coumarin 35 (C35) and pyronin compounds, which are xanthene derivatives, i.e. pyronin B (PyB) and pyronin Y (PyY), in methanol was investigated at room temperature by using steady-state absorption, emission, and time-resolved fluorescence spectroscopy. Fluorescence energy transfer rate constants (k_T) and critical radius (R_0) were determined for C35-PyB and C35-PyY molecular pairs in methanol. The obtained values of k_T and R_0 indicated that the dipole-dipole interaction between C35-PyB and C35-PyY molecular pairs accounted for the energy transfer mechanism. The energy transfer efficiency and the distance between the donor and acceptor (r) were also calculated for donor-acceptor pairs using Förster's theory.
DOI
10.3906/kim-0808-40
Keywords
Fluorescence energy transfer; coumarin 35, pyronin compounds, fluorescence intensity quenching.
First Page
285
Last Page
294
Recommended Citation
TOPRAK, M, & ARIK, M (2010). An investigation of energy transfer between coumarin 35 and xanthene derivatives in liquid medium. Turkish Journal of Chemistry 34 (2): 285-294. https://doi.org/10.3906/kim-0808-40
