1,4-diphenylbutadiyne |
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| The chemical structure of 1,4-diphenylbutadiyne 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-diphenylbutadiyne dissolved in ethanol. 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-diphenylbutadiyne has a molar extinction coefficient of 27,800 M-1cm-1 at 326 nm [J. B. Armitage, N. Entwistle, E. R. H. Jones, and M. C. Whiting, "Researches on acetylenic compounds part XLI. The synthesis of diphenylpolyacetylenes.," J. Chem. Soc., 147-154, 1954].
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Fluorescence
This is the fluorescence emission spectrum of 1,4-diphenylbutadiyne dissolved in ethanol. The spectrum was taken by Junzhong Li on 12/11/97 using an excitation wavelength of 300 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 0.00161 []. |
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