Lattice built with negative thermal expansion properties reveals unique relaxation mechanism
A macrocyclic CB8 three-component host–guest supramolecular complex as a flexible linkage for the development of NTE materials: (A) replacement of covalent bonds with supramolecular complexes in MOFs to produce metal–organic polythreading frameworks; (B) construction of a three-component host–guest complex, (bcbpy)2@CB8; and (C) thermally driven expansion and relaxation-induced contraction of the flexible host–guest complex (bcbpy)2@CB8. Credit: Chemical Science (2023). DOI: 10.1039/D3SC01343J
