1,4-diphenylbutadiene |
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| The chemical structure of 1,4-diphenylbutadiene 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 1,4-diphenylbutadiene dissolved in hexane. It was measured by Junzhong Li on 12/11/97 [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]. 1,4-diphenylbutadiene has a molar extinction coefficient of 33,000 M-1cm-1 at 330 nm [G. Drefahl and G. Plotner, "Polyphenyl-polybutadiene," Chem. Ber., 91, 1285-1289, 1958].
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Fluorescence
This is the fluorescence emission spectrum of 1,4-diphenylbutadiene dissolved in hexane. The spectrum was taken by Junzhong Li on 12/11/97 using an excitation wavelength of 320 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 0.42 [M. T. Allen, L. Miola, and D. G. Whitten, "Host-guest interactions: A fluorescence investigation of the solubilization of diphenylpolyene solute molecules in lipid bilayers," J. Am. Chem. Soc., 110, 3198-3206, 1988]. |
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