Mg-phthalocyanine |
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| The chemical structure of Magnesium phthalocyanine (MgPc), pyridine 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 Magnesium phthalocyanine (MgPc) dissolved in pyridine. It was measured by R. A. Fuh on 6/28/95 [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]. Magnesium phthalocyanine (MgPc), pyridine has a molar extinction coefficient of 87,100 M-1cm-1 at 674 nm [M. Whalley, "Conjugated macrocycles. Part XXXII. Absorption spectra of tetrazaporphyrins and phthalocyanines. Formation of pyridine salts.," J. Chem. Soc., 866-869, 1961]. The fluorescence yield data reported by [P. G. Seybold and M. Gouterman, "Porphyrins XIII: Fluorescence spectra and quantum yields.," J. Mol. Spectroscopy, 31, 1-13, 1969] were obtained in chloronaphthalene. |
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Fluorescence
This is the fluorescence emission spectrum of Magnesium phthalocyanine (MgPc) dissolved in pyridine. The spectrum was taken by R. A. Fuh on 6/28/95 using an excitation wavelength of 650 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 0.48 [P. G. Seybold and M. Gouterman, "Porphyrins XIII: Fluorescence spectra and quantum yields.," J. Mol. Spectroscopy, 31, 1-13, 1969]. |
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