KNiF3 is (Cubic) Perovskite structured and crystallizes in the cubic Pm-3m space group. K(1) is bonded to twelve equivalent F(1) atoms to form KF12 cuboctahedra that share corners with twelve equivalent K(1)F12 cuboctahedra, faces with six equivalent K(1)F12 cuboctahedra, and faces with eight equivalent Ni(1)F6 octahedra. Ni(1) is bonded to six equivalent F(1) atoms to form NiF6 octahedra that share corners with six equivalent Ni(1)F6 octahedra and faces with eight equivalent K(1)F12 cuboctahedra. The corner-sharing octahedra are not tilted. F(1) is bonded to four equivalent K(1) and two equivalent Ni(1) atoms to form a mixture of distorted edge, face, and corner-sharing FK4Ni2 octahedra. The corner-sharing octahedral tilt angles range from 0-60°.
KNiF3 is (Cubic) Perovskite structured and crystallizes in the cubic Pm-3m space group. K(1) is bonded to twelve equivalent F(1) atoms to form KF12 cuboctahedra that share corners with twelve equivalent K(1)F12 cuboctahedra, faces with six equivalent K(1)F12 cuboctahedra, and faces with eight equivalent Ni(1)F6 octahedra. All K(1)-F(1) bond lengths are 2.83 Å. Ni(1) is bonded to six equivalent F(1) atoms to form NiF6 octahedra that share corners with six equivalent Ni(1)F6 octahedra and faces with eight equivalent K(1)F12 cuboctahedra. The corner-sharing octahedra are not tilted. All Ni(1)-F(1) bond lengths are 2.00 Å. F(1) is bonded to four equivalent K(1) and two equivalent Ni(1) atoms to form a mixture of distorted edge, face, and corner-sharing FK4Ni2 octahedra. The corner-sharing octahedral tilt angles range from 0-60°.