Crystallographic Evidence for Reversible Symmetry Breaking in a Spin‐Crossover d⁷ Cobalt(II) Coordination Polymer

Abstract

All in a spin: A cobalt(II) coordination polymer has a highly cooperative spin-crossover (SCO) behavior with a small hysteresis loop (see picture; HS=high spin, LS=low spin). The correlation of the magnetic properties with the crystal structures was determined at different temperatures. This study reveals an unprecedented reversible symmetry breaking in a d7 SCO coordination polymer. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.