Zinc tetramesitylporphyrin radical cation This page summarizes the optical absorption and emission data of Zinc tetramesitylporphyrin radical cation that is available in the PhotochemCAD package, version 2.1a (Du 1998, Dixon 2005). I reworked their data to produce these interactive graphs and to provide direct links to text files containing the raw and manipulated data. Although I have tried to be careful, I may have introduced some errors; the cautious user is advised to compare these results with the original sources.

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This optical absorption measurement of Zinc tetramesitylporphyrin radical cation were made by R. W. Wagner on 12-11-1997 using a Cary 3. The absorption values were collected using a spectral bandwidth of 1.0 nm, a signal averaging time of 0.133 sec, a data interval of 0.25 nm, and a scan rate of 112.5 nm/min.

These measurements were scaled to make the molar extinction coefficient match the value of 190,000cm-1/M at 408.5nm (Fajer, 1970).

Original Data | Extinction Data


The spectra of ZnTMP+ and ZnTPP+ are nearly identical. We have used the extinction coefficient of ZnTPP+ (Fajer, 1970). A fluorescence spectrum was not recorded due to the very low emission of this paramagnetic compound.


Dixon, J. M., M. Taniguchi and J. S. Lindsey (2005), "PhotochemCAD 2. A Refined Program with Accompanying Spectral Databases for Photochemical Calculations, Photochem. Photobiol., 81, 212-213.

Du, H., R.-C. A. Fuh, J. Li, L. A. Corkan and J. S. Lindsey (1998) PhotochemCAD: A computer-aided design and research tool in photochemistry. Photochem. Photobiol. 68, 141-142.

Fajer, J., D. C. Borg, A. Forman, D. Dolphin and R. H. Felton (1970) p-Cation radicals and dications of metalloporphyrins. J. Am. Chem. Soc. 92, 3451-3459.