The first chiral tetracarbene indium(III) complexes have been synthesized by employing a rigid dianionic macrocyclic tetra-NHC ligand. The macrocyclic indium tetra-NHC bromide and ethoxide complexes are structurally similar to analagous salen complexes. The indium ethoxide complex effectively promotes living ring-opening polymerization of ε-caprolactone at room temperature.
H. R. Brothers, R. Chambenahalli, G. S. Nichol, J. A. Garden and D. M. Jenkins, Dalton Trans., 2025, Advance Article , DOI: 10.1039/D4DT03198A
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