Abstract

The molecular absorption coefficients of ms-tetraphenylporphine and the Cu, Ag2, Mg, Zn, Cd, Hg, SnCl2, Pb, MnCl, FeCl, Co and Ni complex salts have been measured over the visible region of the spectrum. The curves representing the absorption coefficients as a function of the wave-length are shown. The variations in the spectra of the metal salts of this one ms-tetrasubstituted porphine are much greater than those which have been found in the spectra of the different ms-tetrasubstituted porphines which so far have been studied.

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