Zero Thermal Expansion in a Flexible, Stable Framework: Tetramethylammonium Copper(I) Zinc(II) Cyanide

摘要

Materials that exhibit zero thermal expansion (ZTE) find uses in applications where precise alignment must be maintained, and thermal shock avoided, over a range of temperatures. Although ZTE can be achieved by composites of ordinary compounds which expand on heating and those which exhibit negative thermal expansion (NTE), this approach leads to strain within the ZTE material, and it is therefore preferable to engineer ZTE behavior at the atomic level within a single material. Compounds known to exhibit near-ZTE over limited temperature ranges include Ag_2O and ReO_3.