Crystal‐to‐Crystal Transformation between Three CuI Coordination Polymers and Structural Evidence for Luminescence Thermochromism

Temperature-dependent Cu⋅⋅⋅Cu distances lead to the luminescence thermochromism of copper (I) coordination polymers with cubane-like Cu4X4 cluster nodes (X=halogen) according to a study on three copper (I) coordination polymers with a bis-thioether ligand (L). The picture shows solid-state luminescence spectra and photographs of the two-dimensional network polymer Cu4I4L2n at 298 and 77 K. Supporting information for this article is available on the WWW under http: //www. wiley-vch. de/contents/jc₂002/2008/z704349ₛ. pdf or from the author. 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.