Synthesis Characterization And Theoretical Studies Of Small Biological Molecule Bound Magnesium Porphyrins

Abstract

The interaction of small molecules with chlorophyll, the primary photosynthetic pigment in chloroplast, is crucial for understanding and enhancing the natural photosynthesis process. The central magnesium ion in chlorophyll plays a key role in light absorption and energy transfer, and it is hypothesized that small molecules present in the chloroplast, can coordinate with this ion, or with its synthetic analogs like magnesium porphyrins. This coordination may alter the photophysical properties and energy transfer process, improving the efficiency of light-harvesting processes. Building on this concept, this thesis work aims to investigate the interactions between small biological molecules like histamine (a derivative of histidine, which is relevant to chloroplast functions), melatonin (a plant growth regulator and antioxidant that supports photosynthesis under stress) and synthetic magnesium porphyrin complexes, aiming to explore how these interactions influence their photophysical properties and uncover mechanisms that can optimize light-harvesting efficiency and energy transfer in artificial photosynthetic systems. newlineMagnesium porphyrins, with their versatile chemical structure and ability to coordinate with biologically relevant molecules, offer a unique platform for exploring new functional materials. Their relevance in light harvesting is particularly critical in the context of developing sustainable energy solutions, while their antimicrobial and antioxidant properties align with the growing need for innovative approaches in healthcare and environmental protection.