Effects of environment on the photophysical characteristics of mesotetrakis methylpyridiniumyl porphyrin (TMPyP)
作者： PJ Gonçalves , PL Franzen , DS Correa , LM Almeida , M Takara
DOI: 10.1016/J.SAA.2011.05.012
关键词:
摘要: Porphyrins are an important class of organic molecules, with interesting linear and nonlinear optical properties given mainly by their extended π-conjugation structure. Their photophysical can be greatly affected the surrounding environment, which used to tune its final properties. Here we report on experimental study meso-tetrakis (methylpyridiniumyl) porphyrin (TMPyP) in aqueous several solvents interaction micelles formed from negatively charged sodium dodecylsulphate (SDS), positively cetyl trimethyl ammonium bromide (CTAB) neutral TRITON X-100. By using Z-scan technique, flash-photolysis time-resolved fluorescence techniques, were able evaluate excited state dynamics TMPyP, observed that tetrapyrrole ring plays role due hydrogen bonds formation between nitrogen atom water, while side groups determine localization non-aqueous micelle part.
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