Fig. 2 | Nature Communications

Fig. 2

From: Rapid multiple-quantum three-dimensional fluorescence spectroscopy disentangles quantum pathways

Fig. 2

Sample spectra and energy scheme. a Linear absorption (black, determined via spectroelectrochemistry in THF/N(n-Bu)4PF6 of TIPS–TAP2− (molecular structure shown in the inset). The laser spectrum employed in the multidimensional experiment is displayed as an orange shaded area. The emission spectrum of TIPS–TAP2− in THF, which was acquired immediately before the multidimensional experiment, is shown as a red dashed line. Absorption and emission spectra are normalized to their respective maximum value. The black dashed line at 4.1 eV marks the energy of the doubly excited state Sx. b Energy-level scheme used for interpreting the 3D spectra with the dashed gray arrow denoting internal conversion (IC) and the red arrow the observed fluorescence

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