Current Group Research
Ultrafast Spectroscopy
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Figure legend: Femtosecond broadband transient absorption spectra for 1-nitropyrene (1NP) in cyclohexane solution after photoexcitation at 406 nm: (a) first 0.30 ps (bottom panel) and from 0.4 to 50 ps (top panel). (b) Contour plot representation of 1NP excited-state dynamics. (c) Proposed excited-state relaxation mechanism in nonpolar solvents. (d) Representative transient decay signals at 430 and 510 nm probe wavelengths. See Crespo-Hernández et al. J. Phys. Chem. A 2008, 112, 6313 for details.