Syntheses and Studies of Energy Donor Appended 21-Monothia, 21-Monooxa, 21,23-Dithiaporphyrin Systems

Heteroporphyrins in the construction of various unsymmetrical multiporphyrin arrays and energy donor appended systems to model the artificial light-harvesting systems for photosynthesis are very few. The present thesis discusses the synthesis and photophysical properties of various energy donor appended heteroporphyrins which are divided into three parts: the first part deals with the synthesis of various bis-functionalized 21-monothia and 21-monooxa porphyrins containing two iodophenyl, ethynyl phenyl and formyl phenyl groups at meso-positions in cis-fashion and their use in the construction of boron-dipyrrin dye appended porphyrin systems and their photodynamics. The second part deals with the synthesis and characterization of various tetra functionalized 21,23-dithiaporphyrin building blocks containing iodophenyl, bromophenyl and ethynyl phenyl groups at meso positions and their use in the synthesis of boron-dipyrrin appended 21,23-dithiaporphyrin system and unsymmetrical porphyrin pentamer containing one central dithiaporphyrin unit and four peripheral normal porphyrin units. More Info

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