Dr Ramaraj Ayyappan
Assistant Professor Grade I (Chemistry)
+91 (0)471 - 2778320
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- My research group is working on the development of phosphine and carbene based multifunctional ligands (Ln). Ligand design is essential to control the metal electronic and steric properties in bond activation and catalytic applications such as hydrogenation, coupling reactions, polymerization.
- Using the tailored ligands, transition-metal complexes [LnM] (Ti, Mn, Fe, Co, Ni, Cu, Ru, Ir, Rh) can be made. It must be mentioned that working with first row 3d-metal complexes is far more challenging than their heavier congeners because they do not form very stable metal ligand bonds and easily undergo one electron oxidation to form paramagnetic complexes. So successful synthesis of [LnM] is quite difficult. It is also incentive in terms of the cost, because first row 3d-elements are earth abundant, non-toxic.
- Using the [LnTM] complexes, bond activations in carbon dioxide (O=C=O) and dinitrogen (N2) and relevant catalytic transformations would be studied.
Figure. (left) Schematic illustration of research areas and (right) pictures illustrating global research challenges associated to our group's research for the sustainable future (image credit; google search engine)