79663-32-4Relevant academic research and scientific papers
Pulsed Irradiation of Water-soluble Porphyrins
Bonnet, Raymond,Ridge, R. J.,Land, Edward J.,Sinclair, Roy S.,Tait, David,Truscott, T. George
, p. 127 - 136 (1982)
Nanosecond laser flash photolysis and pulse radiolysis have been used to characterise the excited states and radicals of meso-tetraphenylporphyrin tetrasulphonic acid as the tetrasodium salt (Na4TPPS) and of meso-tetra-N-methylpyridylporphyrin as the tetra-p-toluenesulphonate (TMPyrP).After 347 nm irradiation, aqueous Na4TPPS forms triplet states (ΦT=0.76) and photoionises monophotonically (ΦI=0.029), while TMPyrP forms only triplets (ΦT=0.92) and does not photoionise.The difference and corrected spectra of the triplet states and the semi-oxidised and semi-reduced radicals of these molecules have been obtained.
