The use of bulky terphenyl and biphenyl functional groups results in formation of the first monochelating β-diketonate (acac) ligands. Complexes of the type M(<sup>Ar</sup>acac)Cl (M = Mn, Fe, Co, Ni, Cu, Zn) are coordinatively comparable with N-functionalized β-diketiminate (NacNac) ligands. Electronic parameters such as the redox potential of the new coordination complexes are compared with other chelate ligand complexes and the results suggest the β-diketonate ligands stablize reduced oxidation states and impart a significantly increased Lewis acidity than nitrogen based ligands.

Monochelating β-diketonate ligands

256th National Meeting (2018)

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