LiSr2(NCN)I3: the first empty tetrahedral strontium(ii) entity coordinated by carbodiimide units but without strontium–strontium bonding
Abstract
LiSr2(NCN)I3, the first extended compound containing empty tetrahedral Sr4 entities, is synthesized using a new flux route, and it exhibits two interpenetrating three-dimensional networks made up from Sr tetrahedra capped by NCN2− anions on their triangular faces and vertex-sharing LiI6 octahedra.