Approach toward the synthesis of a Trianionic Diamidodipyrrin-Based Ligand and the corresponding Iron (III) Complex

Shylendran, Daya (2023) Approach toward the synthesis of a Trianionic Diamidodipyrrin-Based Ligand and the corresponding Iron (III) Complex. Masters thesis, Indian Institute of Science Education and Research Kolkata.

Text (MS dissertation of Daya Shylendran (18MS081)) Thesis_18MS081.pdf - Submitted Version Restricted to Repository staff only Download (1MB)

Abstract

Nonporphyrinic, pyrrole-based ligands are the subject of intense research in the field of coordination chemistry. Of these, dipyrrin-based ligands have received the most attention, with numerous metal complexes being reported. Because of their ability to maintain electron relay in their highly conjugated backbone, dipyrrin-based frameworks have been the subject of substantial study. In this study, we are mainly focusing on a diamidodipyrrin (DADP) framework to synthesize an amide-based trianionic ligand with N4 binding mode which was typically unexplored. This will help us to explore the diverse applications of the reactive high-valent metal complex supported by the desired trianionic system. Our group had prepared a novel acyclic tetradentate trianionic Nitro-based dipyrrin amide ligand (NDPA) as well as its corresponding copper and cobalt complexes with N4 and N3O binding modes respectively, however, the Fe complex of NDPA appears to be unachievable. In this work, we have shown the synthesis of a modified diamidodipyrrin ligand (NTPA) and successfully prepared its anionic Fe(III) complex with NNNO binding mode which is characterized by HR-MS, UV-Vis and further studies are in progress.

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