Metalation of a Linear NNN-Pyrrole Ligand
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Raffin, Brandon
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2018-04-20
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Metalation of a Linear NNN-Pyrrole Ligand
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Abstract
Tri-dentate “pincer” ligands with three nitrogen donor sites play an important role in coordination of metal centers to form metal complexes. The ligands’ high thermal stability and formation of robust complexes often afford highly efficient catalysts for a variety of chemical reactions. A NNN-pyrrole pincer ligand containing dimethylamine donors, 2,5-bis(dimethylamino) mthylpyrrole, (NNN), was synthesized. Ligation with PdCl2 is underway in attempt to isolate the square planar complex Pd(NNN)Cl. A variety of reaction conditions have been employed, and reaction products are being analyzed via 1H NMR spectroscopy. Upon evidence of metalation, such as the disappearance of the pyrrole N-H resonance, purification via recrystallization will follow in attempt to grow a crystal suitable for single crystal X-ray diffraction.