KSrI3 crystallizes in the orthorhombic Cmcm space group. K(1) is bonded in a 6-coordinate geometry to two equivalent I(2) and four equivalent I(1) atoms. Sr(1) is bonded to two equivalent I(2) and four equivalent I(1) atoms to form a mixture of corner and edge-sharing SrI6 octahedra. The corner-sharing octahedral tilt angles are 45°. There are two inequivalent I sites. In the first I site, I(1) is bonded in a 4-coordinate geometry to two equivalent K(1) and two equivalent Sr(1) atoms. In the second I site, I(2) is bonded to two equivalent K(1) and two equivalent Sr(1) atoms to form distorted corner-sharing IK2Sr2 tetrahedra.
KSrI3 crystallizes in the orthorhombic Cmcm space group. K(1) is bonded in a 6-coordinate geometry to two equivalent I(2) and four equivalent I(1) atoms. Both K(1)-I(2) bond lengths are 3.53 Å. All K(1)-I(1) bond lengths are 3.69 Å. Sr(1) is bonded to two equivalent I(2) and four equivalent I(1) atoms to form a mixture of corner and edge-sharing SrI6 octahedra. The corner-sharing octahedral tilt angles are 45°. Both Sr(1)-I(2) bond lengths are 3.27 Å. All Sr(1)-I(1) bond lengths are 3.30 Å. There are two inequivalent I sites. In the first I site, I(1) is bonded in a 4-coordinate geometry to two equivalent K(1) and two equivalent Sr(1) atoms. In the second I site, I(2) is bonded to two equivalent K(1) and two equivalent Sr(1) atoms to form distorted corner-sharing IK2Sr2 tetrahedra.