Perylene |
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| The chemical structure of Perylene is shown at the right. The absorption and fluorescence emission spectra are shown below. The structure, absorption, and fluorescence data were all obtained from the PhotochemCAD package by Jonathan Lindsey. This excellent program allows rapid comparison of spectra and enables one to do a variety of photochemically relevant calculations. |
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Absorption
This is a graph of the molar extinction coefficient of Perylene dissolved in cyclohexane. It was measured by R. A. Fuh on 6/27/95 [H. Du, R. A. Fuh, J. Li, A. Corkan, J. S. Lindsey, "PhotochemCAD: A computer-aided design and research tool in photochemistry," Photochemistry and Photobiology, 68, 141-142, 1998]. Perylene has a molar extinction coefficient of 38,500 M-1cm-1 at 435.75 nm [I. B. Berlman, Handbook of Fluorescence Spectra of Aromatic Molecules, Academic Press, 1971]. The extinction coefficient also has been reported to be 42,500 cm-1/M [I. B. Berlman, Academic Press, 1965]. |
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Fluorescence
This is the fluorescence emission spectrum of Perylene dissolved in cyclohexane. The spectrum was taken by R. A. Fuh on 6/27/95 using an excitation wavelength of 410 nm [H. Du, R. A. Fuh, J. Li, A. Corkan, J. S. Lindsey, "PhotochemCAD: A computer-aided design and research tool in photochemistry," Photochemistry and Photobiology, 68, 141-142, 1998]. The quantum yield is 0.94 [I. B. Berlman, Academic Press, 1965]. |
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