Thermochromic properties of cucurbituril-based 3d-4f heterometallic material

摘要

One 3d-4f coordination compound was synthesized by reaction between cucurbit[6]uril samarium and copper chlorides with molecular formula [Sm2Cu2(C36H36N24O12)Cl-10] (H2O)(26). Upon heating, the compound undergoes a reversible colour change due to a solid-to-solid phase transition of the [CuCl4](2-) anions. The powder diffraction and luminescence spectroscopy suggest small changes in the structure during the heating/cooling process. (C) 2017 Elsevier B.V. All rights reserved.