A square planar iron(II) biphenyl-2,2′-diyl complex with NHC ligation: Synthesis, characterization, and its reactivity toward unsaturated organic substrates

A square planar iron(II) biphenyl-2,2′-diyl complex bearing N-heterocyclic carbene ligand react with alkyne and nitrile to form substituted phenanthrene and phenanthridine.63