Abstract
Herein, a series of three methyl red-porphyrin hybrids containing one, two and three amide-bonded chiral chromophores were successfully synthesized and isolated. Interestingly, these methyl red-porphyrin chiral hybrids have significant expansion in both UV–vis absorption and circular dichroism spectra. Furthermore, the expanded chiral-optical responses can be modulated under UV-light irradiation due to the trans- and cis-isomerism of –NN- bond of methyl red chromophore.
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