LiCd2Al4O8 is Aluminum carbonitride-derived structured and crystallizes in the orthorhombic Imm2 space group. Li(1) is bonded in a 4-coordinate geometry to two equivalent O(2) and two equivalent O(3) atoms. There are two inequivalent Cd sites. In the first Cd site, Cd(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form CdO4 tetrahedra that share corners with six equivalent Al(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 66-68°. In the second Cd site, Cd(2) is bonded in a 4-coordinate geometry to two equivalent O(3) and two equivalent O(4) atoms. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded in a 5-coordinate geometry to one O(1), two equivalent O(2), and two equivalent O(4) atoms. In the second Al site, Al(2) is bonded to one O(2), one O(4), two equivalent O(1), and two equivalent O(3) atoms to form AlO6 octahedra that share corners with three equivalent Cd(1)O4 tetrahedra and edges with two equivalent Al(2)O6 octahedra. There are four inequivalent O sites. In the first O site, O(1) is bonded to one Cd(1), one Al(1), and two equivalent Al(2) atoms to form OAl3Cd tetrahedra that share  a cornercorner with one O(1)Al3Cd tetrahedra, corners with four equivalent O(4)Al3Cd tetrahedra, corners with two equivalent O(2)LiAl3Cd trigonal bipyramids,  an edgeedge with one O(1)Al3Cd tetrahedra, and edges with two equivalent O(2)LiAl3Cd trigonal bipyramids. In the second O site, O(2) is bonded to one Li(1), one Cd(1), one Al(2), and two equivalent Al(1) atoms to form distorted OLiAl3Cd trigonal bipyramids that share corners with two equivalent O(1)Al3Cd tetrahedra, corners with five equivalent O(4)Al3Cd tetrahedra,  a cornercorner with one O(2)LiAl3Cd trigonal bipyramid, edges with two equivalent O(1)Al3Cd tetrahedra, and  a faceface with one O(2)LiAl3Cd trigonal bipyramid. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Li(1), one Cd(2), and two equivalent Al(2) atoms. In the fourth O site, O(4) is bonded to one Cd(2), one Al(2), and two equivalent Al(1) atoms to form OAl3Cd tetrahedra that share  a cornercorner with one O(4)Al3Cd tetrahedra, corners with four equivalent O(1)Al3Cd tetrahedra, corners with five equivalent O(2)LiAl3Cd trigonal bipyramids, and  an edgeedge with one O(4)Al3Cd tetrahedra.
LiCd2Al4O8 is Aluminum carbonitride-derived structured and crystallizes in the orthorhombic Imm2 space group. Li(1) is bonded in a 4-coordinate geometry to two equivalent O(2) and two equivalent O(3) atoms. Both Li(1)-O(2) bond lengths are 2.11 Å. Both Li(1)-O(3) bond lengths are 1.85 Å. There are two inequivalent Cd sites. In the first Cd site, Cd(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form CdO4 tetrahedra that share corners with six equivalent Al(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 66-68°. Both Cd(1)-O(1) bond lengths are 2.23 Å. Both Cd(1)-O(2) bond lengths are 2.21 Å. In the second Cd site, Cd(2) is bonded in a 4-coordinate geometry to two equivalent O(3) and two equivalent O(4) atoms. Both Cd(2)-O(3) bond lengths are 2.29 Å. Both Cd(2)-O(4) bond lengths are 2.13 Å. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded in a 5-coordinate geometry to one O(1), two equivalent O(2), and two equivalent O(4) atoms. The Al(1)-O(1) bond length is 1.87 Å. Both Al(1)-O(2) bond lengths are 1.94 Å. Both Al(1)-O(4) bond lengths are 1.93 Å. In the second Al site, Al(2) is bonded to one O(2), one O(4), two equivalent O(1), and two equivalent O(3) atoms to form AlO6 octahedra that share corners with three equivalent Cd(1)O4 tetrahedra and edges with two equivalent Al(2)O6 octahedra. The Al(2)-O(2) bond length is 2.17 Å. The Al(2)-O(4) bond length is 2.07 Å. Both Al(2)-O(1) bond lengths are 2.05 Å. Both Al(2)-O(3) bond lengths are 1.92 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded to one Cd(1), one Al(1), and two equivalent Al(2) atoms to form OAl3Cd tetrahedra that share  a cornercorner with one O(1)Al3Cd tetrahedra, corners with four equivalent O(4)Al3Cd tetrahedra, corners with two equivalent O(2)LiAl3Cd trigonal bipyramids,  an edgeedge with one O(1)Al3Cd tetrahedra, and edges with two equivalent O(2)LiAl3Cd trigonal bipyramids. In the second O site, O(2) is bonded to one Li(1), one Cd(1), one Al(2), and two equivalent Al(1) atoms to form distorted OLiAl3Cd trigonal bipyramids that share corners with two equivalent O(1)Al3Cd tetrahedra, corners with five equivalent O(4)Al3Cd tetrahedra,  a cornercorner with one O(2)LiAl3Cd trigonal bipyramid, edges with two equivalent O(1)Al3Cd tetrahedra, and  a faceface with one O(2)LiAl3Cd trigonal bipyramid. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Li(1), one Cd(2), and two equivalent Al(2) atoms. In the fourth O site, O(4) is bonded to one Cd(2), one Al(2), and two equivalent Al(1) atoms to form OAl3Cd tetrahedra that share  a cornercorner with one O(4)Al3Cd tetrahedra, corners with four equivalent O(1)Al3Cd tetrahedra, corners with five equivalent O(2)LiAl3Cd trigonal bipyramids, and  an edgeedge with one O(4)Al3Cd tetrahedra.