Our newly found �redox-storage'' property of pyridylpyrrolide ligand which acts as �electron-buffer� in small molecule activation, we are interested to explore more the reactivity of 3d transition metal complexes of the type Fe(pyridylpyrrolide)2; either stoichiometric or catalytic way. Two different 2,2'-pyridylpyrrolide ligands (L0H=3,5-(tBu)2PyrPy and L2H=3,5-(CF3)2PyrPy), which are electronically different, were used to obtain the Fe(L0)2 and Fe(L2)2(THF) complexes. The complexes were synthesized in high yield and characterized by NMR and X-ray diffraction techniques. Reaction of excess CO with Fe(L2)2(THF) led to the formation of quantitative yield of dicarbonyl compound Fe(L2)2(CO)2 however CO didn't react with Fe(L0)2. The reactivity difference between these two complexes indicates Lewis acidity is remarkably different in two-iron center. The talk presents reactivity of these two complexes in two different directions reductive reactivity such as CO2 reduction and oxidative reactivity such as O2 activation and use of later intermediates; iron-oxo and iron-imido to functionalize C�H bond.

Synthesis and reactivity of (pyridylpyrrolide)<sub>2</sub>Fe(II) complexes

243rd National Meeting (2012)

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Synthesis and reactivity of (pyridylpyrrolide)2Fe(II) complexes

Synthesis and reactivity of (pyridylpyrrolide)₂Fe(II) complexes