Anthracene |
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| The chemical structure of Anthracene 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 Anthracene dissolved in cyclohexane. It was measured by R. A. Fuh on 6/26/95 [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]. Anthracene has a molar extinction coefficient of 9,700 M-1cm-1 at 356.25 nm [I. B. Berlman, Handbook of Fluorescence Spectra of Aromatic Molecules, Academic Press, 1971]. Other fluorescence yields include 0.27 in ethanol [W. R. Dawson and M. W. Windsor, "Fluorescence yields of aromatic compounds," J. Phys. Chem., 72, 3251-3260, 1968] [D. F. Eaton, "Reference materials for fluorescence measurement," Pure Appl. Chem., 60, 1107-1114, 1988]. |
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Fluorescence
This is the fluorescence emission spectrum of Anthracene dissolved in cyclohexane. The spectrum was taken by R. A. Fuh on 6/26/95 using an excitation wavelength of 350 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 0.36 [I. B. Berlman, Handbook of Fluorescence Spectra of Aromatic Molecules, Academic Press, 1971]. |
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