Order–disorder phase transition in the first thiocyanate-bridged double perovskite-type coordination polymer: [NH4]2[NiCd(SCN)6]†
Abstract
The first thiocyanate-bridged double perovskite-type coordination polymer [NH4]2[NiCd(SCN)6] is reported here, which undergoes a reversible structural phase transition at around 120 K. An order–disorder mechanism for this transition is disclosed by X-ray structural analyses, dielectric measurement, as well as molecular dynamics simulations.