Triazine Based Materials: Design Strategy and Applications

Abstract: This thesis presents the design of both hydrogen-bonded organic and covalent systems from triazine-based monomers. The improved stability afforded by charge-assisted hydrogen bonding between melaminium and dicarboxylate moieties in the designed systems were beneficial in utilizing these systems as heterogeneous bifunctional organocatalysts for antagonistic acid-base reactions exemplified from cascade deacetalization-Knoevenagel condensation. The charge-assisted hydrogen bonded systems were revealed as competent electrocatalysts for water splitting, with low overpotential and high Faradaic efficiency. The introduction of the chirality in the ionic hydrogen bonded system based on melamine, tartaric acid resulted in the improvement of their overall electrocatalytic performance for OER, and HER owing to the chirality induced spin selectivity (CISS) effect. The serendipitous discovery of the planar polymorphic form of melamine (Form-II) with a greater extent of hydrogen bonding was disclosed in presence of L-Glutamic acid as a structure-directing agent. The planarity in melamine Form-II resulted in a lower hardness and elastic modulus, while it proved to be a better adsorbent for dyes owing to an extensive hydrogen bonded network. The last chapter discusses the template-free synthesis of a triazine-porphyrin polymer, which has been used for the electrocatalytic reduction of dinitrogen to ammonia<p></p>