Cs8Na4HoY3Cl24 is (Cubic) Perovskite-derived structured and crystallizes in the tetragonal P4/mmm space group. There are two inequivalent Cs sites. In the first Cs site, Cs(1) is bonded to two equivalent Cl(1), two equivalent Cl(4), four equivalent Cl(5), and four equivalent Cl(7) atoms to form CsCl12 cuboctahedra that share corners with four equivalent Cs(2)Cl12 cuboctahedra, corners with eight equivalent Cs(1)Cl12 cuboctahedra,  a faceface with one Cs(2)Cl12 cuboctahedra, faces with five equivalent Cs(1)Cl12 cuboctahedra, faces with two equivalent Na(1)Cl6 octahedra, faces with two equivalent Na(3)Cl6 octahedra, faces with two equivalent Y(1)Cl6 octahedra, and faces with two equivalent Y(2)Cl6 octahedra. In the second Cs site, Cs(2) is bonded to two equivalent Cl(2), two equivalent Cl(3), four equivalent Cl(5), and four equivalent Cl(6) atoms to form CsCl12 cuboctahedra that share corners with four equivalent Cs(1)Cl12 cuboctahedra, corners with eight equivalent Cs(2)Cl12 cuboctahedra,  a faceface with one Cs(1)Cl12 cuboctahedra, faces with five equivalent Cs(2)Cl12 cuboctahedra, faces with two equivalent Na(1)Cl6 octahedra, faces with two equivalent Na(2)Cl6 octahedra, faces with two equivalent Ho(1)Cl6 octahedra, and faces with two equivalent Y(1)Cl6 octahedra. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded to one Cl(1), one Cl(3), and four equivalent Cl(5) atoms to form NaCl6 octahedra that share  a cornercorner with one Ho(1)Cl6 octahedra,  a cornercorner with one Y(2)Cl6 octahedra, corners with four equivalent Y(1)Cl6 octahedra, faces with four equivalent Cs(1)Cl12 cuboctahedra, and faces with four equivalent Cs(2)Cl12 cuboctahedra. The corner-sharing octahedra are not tilted. In the second Na site, Na(2) is bonded to two equivalent Cl(2) and four equivalent Cl(6) atoms to form NaCl6 octahedra that share corners with two equivalent Y(1)Cl6 octahedra, corners with four equivalent Ho(1)Cl6 octahedra, and faces with eight equivalent Cs(2)Cl12 cuboctahedra. The corner-sharing octahedra are not tilted. In the third Na site, Na(3) is bonded to two equivalent Cl(4) and four equivalent Cl(7) atoms to form NaCl6 octahedra that share corners with two equivalent Y(1)Cl6 octahedra, corners with four equivalent Y(2)Cl6 octahedra, and faces with eight equivalent Cs(1)Cl12 cuboctahedra. The corner-sharing octahedra are not tilted. Ho(1) is bonded to two equivalent Cl(3) and four equivalent Cl(6) atoms to form HoCl6 octahedra that share corners with two equivalent Na(1)Cl6 octahedra, corners with four equivalent Na(2)Cl6 octahedra, and faces with eight equivalent Cs(2)Cl12 cuboctahedra. The corner-sharing octahedra are not tilted. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded to one Cl(2), one Cl(4), and four equivalent Cl(5) atoms to form YCl6 octahedra that share  a cornercorner with one Na(2)Cl6 octahedra,  a cornercorner with one Na(3)Cl6 octahedra, corners with four equivalent Na(1)Cl6 octahedra, faces with four equivalent Cs(1)Cl12 cuboctahedra, and faces with four equivalent Cs(2)Cl12 cuboctahedra. The corner-sharing octahedra are not tilted. In the second Y site, Y(2) is bonded to two equivalent Cl(1) and four equivalent Cl(7) atoms to form YCl6 octahedra that share corners with two equivalent Na(1)Cl6 octahedra, corners with four equivalent Na(3)Cl6 octahedra, and faces with eight equivalent Cs(1)Cl12 cuboctahedra. The corner-sharing octahedra are not tilted. There are seven inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a distorted linear geometry to four equivalent Cs(1), one Na(1), and one Y(2) atom. In the second Cl site, Cl(2) is bonded in a distorted linear geometry to four equivalent Cs(2), one Na(2), and one Y(1) atom. In the third Cl site, Cl(3) is bonded in a distorted linear geometry to four equivalent Cs(2), one Na(1), and one Ho(1) atom. In the fourth Cl site, Cl(4) is bonded in a distorted linear geometry to four equivalent Cs(1), one Na(3), and one Y(1) atom. In the fifth Cl site, Cl(5) is bonded in a distorted linear geometry to two equivalent Cs(1), two equivalent Cs(2), one Na(1), and one Y(1) atom. In the sixth Cl site, Cl(6) is bonded in a distorted linear geometry to four equivalent Cs(2), one Na(2), and one Ho(1) atom. In the seventh Cl site, Cl(7) is bonded in a distorted linear geometry to four equivalent Cs(1), one Na(3), and one Y(2) atom.
Cs8Na4HoY3Cl24 is (Cubic) Perovskite-derived structured and crystallizes in the tetragonal P4/mmm space group. There are two inequivalent Cs sites. In the first Cs site, Cs(1) is bonded to two equivalent Cl(1), two equivalent Cl(4), four equivalent Cl(5), and four equivalent Cl(7) atoms to form CsCl12 cuboctahedra that share corners with four equivalent Cs(2)Cl12 cuboctahedra, corners with eight equivalent Cs(1)Cl12 cuboctahedra,  a faceface with one Cs(2)Cl12 cuboctahedra, faces with five equivalent Cs(1)Cl12 cuboctahedra, faces with two equivalent Na(1)Cl6 octahedra, faces with two equivalent Na(3)Cl6 octahedra, faces with two equivalent Y(1)Cl6 octahedra, and faces with two equivalent Y(2)Cl6 octahedra. Both Cs(1)-Cl(1) bond lengths are 3.79 Å. Both Cs(1)-Cl(4) bond lengths are 3.79 Å. All Cs(1)-Cl(5) bond lengths are 3.80 Å. All Cs(1)-Cl(7) bond lengths are 3.79 Å. In the second Cs site, Cs(2) is bonded to two equivalent Cl(2), two equivalent Cl(3), four equivalent Cl(5), and four equivalent Cl(6) atoms to form CsCl12 cuboctahedra that share corners with four equivalent Cs(1)Cl12 cuboctahedra, corners with eight equivalent Cs(2)Cl12 cuboctahedra,  a faceface with one Cs(1)Cl12 cuboctahedra, faces with five equivalent Cs(2)Cl12 cuboctahedra, faces with two equivalent Na(1)Cl6 octahedra, faces with two equivalent Na(2)Cl6 octahedra, faces with two equivalent Ho(1)Cl6 octahedra, and faces with two equivalent Y(1)Cl6 octahedra. Both Cs(2)-Cl(2) bond lengths are 3.79 Å. Both Cs(2)-Cl(3) bond lengths are 3.79 Å. All Cs(2)-Cl(5) bond lengths are 3.80 Å. All Cs(2)-Cl(6) bond lengths are 3.79 Å. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded to one Cl(1), one Cl(3), and four equivalent Cl(5) atoms to form NaCl6 octahedra that share  a cornercorner with one Ho(1)Cl6 octahedra,  a cornercorner with one Y(2)Cl6 octahedra, corners with four equivalent Y(1)Cl6 octahedra, faces with four equivalent Cs(1)Cl12 cuboctahedra, and faces with four equivalent Cs(2)Cl12 cuboctahedra. The corner-sharing octahedra are not tilted. The Na(1)-Cl(1) bond length is 2.75 Å. The Na(1)-Cl(3) bond length is 2.74 Å. All Na(1)-Cl(5) bond lengths are 2.74 Å. In the second Na site, Na(2) is bonded to two equivalent Cl(2) and four equivalent Cl(6) atoms to form NaCl6 octahedra that share corners with two equivalent Y(1)Cl6 octahedra, corners with four equivalent Ho(1)Cl6 octahedra, and faces with eight equivalent Cs(2)Cl12 cuboctahedra. The corner-sharing octahedra are not tilted. Both Na(2)-Cl(2) bond lengths are 2.74 Å. All Na(2)-Cl(6) bond lengths are 2.75 Å. In the third Na site, Na(3) is bonded to two equivalent Cl(4) and four equivalent Cl(7) atoms to form NaCl6 octahedra that share corners with two equivalent Y(1)Cl6 octahedra, corners with four equivalent Y(2)Cl6 octahedra, and faces with eight equivalent Cs(1)Cl12 cuboctahedra. The corner-sharing octahedra are not tilted. Both Na(3)-Cl(4) bond lengths are 2.74 Å. All Na(3)-Cl(7) bond lengths are 2.74 Å. Ho(1) is bonded to two equivalent Cl(3) and four equivalent Cl(6) atoms to form HoCl6 octahedra that share corners with two equivalent Na(1)Cl6 octahedra, corners with four equivalent Na(2)Cl6 octahedra, and faces with eight equivalent Cs(2)Cl12 cuboctahedra. The corner-sharing octahedra are not tilted. Both Ho(1)-Cl(3) bond lengths are 2.62 Å. All Ho(1)-Cl(6) bond lengths are 2.62 Å. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded to one Cl(2), one Cl(4), and four equivalent Cl(5) atoms to form YCl6 octahedra that share  a cornercorner with one Na(2)Cl6 octahedra,  a cornercorner with one Na(3)Cl6 octahedra, corners with four equivalent Na(1)Cl6 octahedra, faces with four equivalent Cs(1)Cl12 cuboctahedra, and faces with four equivalent Cs(2)Cl12 cuboctahedra. The corner-sharing octahedra are not tilted. The Y(1)-Cl(2) bond length is 2.63 Å. The Y(1)-Cl(4) bond length is 2.63 Å. All Y(1)-Cl(5) bond lengths are 2.63 Å. In the second Y site, Y(2) is bonded to two equivalent Cl(1) and four equivalent Cl(7) atoms to form YCl6 octahedra that share corners with two equivalent Na(1)Cl6 octahedra, corners with four equivalent Na(3)Cl6 octahedra, and faces with eight equivalent Cs(1)Cl12 cuboctahedra. The corner-sharing octahedra are not tilted. Both Y(2)-Cl(1) bond lengths are 2.63 Å. All Y(2)-Cl(7) bond lengths are 2.63 Å. There are seven inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a distorted linear geometry to four equivalent Cs(1), one Na(1), and one Y(2) atom. In the second Cl site, Cl(2) is bonded in a distorted linear geometry to four equivalent Cs(2), one Na(2), and one Y(1) atom. In the third Cl site, Cl(3) is bonded in a distorted linear geometry to four equivalent Cs(2), one Na(1), and one Ho(1) atom. In the fourth Cl site, Cl(4) is bonded in a distorted linear geometry to four equivalent Cs(1), one Na(3), and one Y(1) atom. In the fifth Cl site, Cl(5) is bonded in a distorted linear geometry to two equivalent Cs(1), two equivalent Cs(2), one Na(1), and one Y(1) atom. In the sixth Cl site, Cl(6) is bonded in a distorted linear geometry to four equivalent Cs(2), one Na(2), and one Ho(1) atom. In the seventh Cl site, Cl(7) is bonded in a distorted linear geometry to four equivalent Cs(1), one Na(3), and one Y(2) atom.