MgTMP |
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| The chemical structure of Magnesium tetramesitylporphyrin (MgTMP) 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 tetramesitylporphyrin (MgTMP) dissolved in toluene. It was measured by Richard W. Wagner on 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 tetramesitylporphyrin (MgTMP) has a molar extinction coefficient of 446,700 M-1cm-1 at 426.5 nm [J. S. Lindsey and J. N. Woodford, "A simple method for preparing magnesium porphyrins.," Inorg. Chem., 34, 1063-1069, 1995].
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Fluorescence
This is the fluorescence emission spectrum of Magnesium tetramesitylporphyrin (MgTMP) dissolved in toluene. The spectrum was taken by Richard W. Wagner on 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 0.17 [S. I. Yang, J. Seth, J.-P. Strachan, S. Gentemann, D. Kim, D. Holten, J. S. Lindsey, and D. F. Bocian, "Ground- and excited-state electronic properties of halogenated tetraarylporphyrins: Tuning the building blocks for porphyrin-based nanostructures.," J. Phys. Chem., submitted, 1998]. |
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