New Chiral Zinc Complexes: Synthesis, Structure, and Induction of Axial Chirality

We describe an efficient methodology for the preparation
of new
chiral zinc complexes by assembling dynamically racemic biphenol derivatives
and chiral 1,2-diamines with suitable zinc­(II) precursors. Mononuclear
and dinuclear zinc­(II) complexes were formed from differently substituted
biphenols. The solid-state and solution structural characterization
of the resulting compounds allowed us to demonstrate a preferential
sense of induced axial chirality for mononuclear complexes, a phenomenon
that was not observed for the dinuclear ones.