Lattice dynamics and negative thermal expansion in the framework compound ZnNi(CN)${}_4$ with two-dimensional and three-dimensional local environments

Stella d'Ambrumenil, Mohamed Zbiri, Ann M. Chippindale +3

ZnNi(CN)${}_4$ is a 3D framework material consisting of two interpenetrating PtS-type networks in which tetrahedral [ZnN${}_4$] units are linked by square-planar [NiC${}_4$] units. Both…