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Unsymmetrical porphyrins: the role of meso-substituents on their physical properties

    The synthesis of one-step meso-porphyrins type AxBy containing alkyl and pyridyl groups is described. An initial assess of the amphiphilic proprieties were determined by its log Kow using fluorescence detection techniques and values from 1.42 to 2.15 were observed. The melting points of this set of porphyrins was determined and a strong effect of the number and size of the meso-alkyl chain is ascribed.

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