Reversible Single-Crystal-to-Single-Crystal Transformation from Achiral Antiferromagnetic Hexanuclears to a Chiral Ferrimagnetic Double Zigzag Chain

A reversible single-crystal-to-single-crystal transformation from hexanuclear clusters, to a one-dimensional double-zigzag chain was established. With the reversible polymerization, the chirality and magnetic interactions are switched between achiral and chiral and between antiferromagnetic in hexanuclear clusters and ferrimagnetic in chains, respectively.