Pinacyanol iodide |
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| The chemical structure of Pinacyanol iodide 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 Pinacyanol iodide dissolved in methanol. It was measured by R. A. Fuh on summer, 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]. Pinacyanol iodide has a molar extinction coefficient of 128,000 M-1cm-1 at 603.5 nm [S. Rentsch, R. Danielius, and R. Gadonas, "Bestimmung von Lebensdauern und Transientenabsorptionsspektren von Polymethinfarbstoffen aus pikosekunden-spektroskopischen Messungen.," J. Signalaufz.-Mater., 12, 319-328, 1984].
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Fluorescence
This is the fluorescence emission spectrum of Pinacyanol iodide dissolved in methanol. The spectrum was taken by R. A. Fuh on summer, 95 using an excitation wavelength of 550 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 0.001 [S. Rentsch, R. Danielius, and R. Gadonas, "Bestimmung von Lebensdauern und Transientenabsorptionsspektren von Polymethinfarbstoffen aus pikosekunden-spektroskopischen Messungen.," J. Signalaufz.-Mater., 12, 319-328, 1984]. |
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