Macroscopic Thermosalient\nEffect in a Thermoresponsive\nBimetallic Coordination Polymer with Multicomponent Orderly Organization

Macroscopic thermosalient effect is observed in a multicomponent\nbimetallic one-dimensional (1D) coordination polymer (<b>U–Cu–BCP</b>) with five different structural components for the first time, which\nrepresents a thermosalient crystalline compound with the highest number\nof structural components reported to date. A combination of different\ntemperature-dependent characterization techniques containing TGA,\nDSC, VT-PXRD, and VT-SCXRD unveils that the underlying mechanism for\nthe themo-responsiveness is attributed to anisotropic thermal response\nof crystal lattice, i.e., positive thermal expansion effect along\nthe stacking direction of 2D supramolecular network and negative thermal\nexpansion effect perpendicular to the stacking direction over 280\nK.