Rb(Cr5Te8)3 crystallizes in the triclinic P-1 space group. Rb(1) is bonded in a distorted q6 geometry to two equivalent Te(10), two equivalent Te(12), two equivalent Te(2), two equivalent Te(7), and two equivalent Te(8) atoms. There are eight inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to one Te(10), one Te(12), one Te(3), one Te(6), and two equivalent Te(4) atoms to form a mixture of face, corner, and edge-sharing CrTe6 octahedra. The corner-sharing octahedral tilt angles range from 50-51°. In the second Cr site, Cr(2) is bonded to one Te(10), one Te(11), one Te(2), one Te(6), and two equivalent Te(5) atoms to form a mixture of face, corner, and edge-sharing CrTe6 octahedra. The corner-sharing octahedral tilt angles range from 50-51°. In the third Cr site, Cr(3) is bonded to one Te(1), one Te(11), one Te(12), one Te(4), one Te(5), and one Te(6) atom to form a mixture of face, corner, and edge-sharing CrTe6 octahedra. The corner-sharing octahedral tilt angles range from 50-51°. In the fourth Cr site, Cr(4) is bonded to one Te(1), one Te(4), one Te(5), one Te(9), and two equivalent Te(8) atoms to form a mixture of face, corner, and edge-sharing CrTe6 octahedra. The corner-sharing octahedral tilt angles range from 49-51°. In the fifth Cr site, Cr(5) is bonded to one Te(2), one Te(5), one Te(6), one Te(7), one Te(8), and one Te(9) atom to form a mixture of face, corner, and edge-sharing CrTe6 octahedra. The corner-sharing octahedral tilt angles range from 49-51°. In the sixth Cr site, Cr(6) is bonded to one Te(3), one Te(4), one Te(6), one Te(9), and two equivalent Te(7) atoms to form a mixture of face, corner, and edge-sharing CrTe6 octahedra. The corner-sharing octahedral tilt angles range from 49-51°. In the seventh Cr site, Cr(7) is bonded to two equivalent Te(10), two equivalent Te(2), and two equivalent Te(3) atoms to form a mixture of corner and edge-sharing CrTe6 octahedra. The corner-sharing octahedral tilt angles are 49°. In the eighth Cr site, Cr(8) is bonded to one Te(11), one Te(12), one Te(2), one Te(3), and two equivalent Te(1) atoms to form a mixture of corner and edge-sharing CrTe6 octahedra. The corner-sharing octahedral tilt angles are 49°. There are twelve inequivalent Te sites. In the first Te site, Te(1) is bonded in a rectangular see-saw-like geometry to one Cr(3), one Cr(4), and two equivalent Cr(8) atoms. In the second Te site, Te(2) is bonded in a 5-coordinate geometry to one Rb(1), one Cr(2), one Cr(5), one Cr(7), and one Cr(8) atom. In the third Te site, Te(3) is bonded in a rectangular see-saw-like geometry to one Cr(1), one Cr(6), one Cr(7), and one Cr(8) atom. In the fourth Te site, Te(4) is bonded to one Cr(3), one Cr(4), one Cr(6), and two equivalent Cr(1) atoms to form distorted edge-sharing TeCr5 trigonal bipyramids. In the fifth Te site, Te(5) is bonded to one Cr(3), one Cr(4), one Cr(5), and two equivalent Cr(2) atoms to form distorted edge-sharing TeCr5 trigonal bipyramids. In the sixth Te site, Te(6) is bonded to one Cr(1), one Cr(2), one Cr(3), one Cr(5), and one Cr(6) atom to form distorted edge-sharing TeCr5 trigonal bipyramids. In the seventh Te site, Te(7) is bonded in a distorted rectangular see-saw-like geometry to one Rb(1), one Cr(5), and two equivalent Cr(6) atoms. In the eighth Te site, Te(8) is bonded in a distorted rectangular see-saw-like geometry to one Rb(1), one Cr(5), and two equivalent Cr(4) atoms. In the ninth Te site, Te(9) is bonded in a distorted T-shaped geometry to one Cr(4), one Cr(5), and one Cr(6) atom. In the tenth Te site, Te(10) is bonded in a rectangular see-saw-like geometry to one Rb(1), one Cr(1), one Cr(2), and one Cr(7) atom. In the eleventh Te site, Te(11) is bonded in a distorted T-shaped geometry to one Cr(2), one Cr(3), and one Cr(8) atom. In the twelfth Te site, Te(12) is bonded in a rectangular see-saw-like geometry to one Rb(1), one Cr(1), one Cr(3), and one Cr(8) atom.
Rb(Cr5Te8)3 crystallizes in the triclinic P-1 space group. Rb(1) is bonded in a distorted q6 geometry to two equivalent Te(10), two equivalent Te(12), two equivalent Te(2), two equivalent Te(7), and two equivalent Te(8) atoms. Both Rb(1)-Te(10) bond lengths are 3.83 Å. Both Rb(1)-Te(12) bond lengths are 3.83 Å. Both Rb(1)-Te(2) bond lengths are 3.89 Å. Both Rb(1)-Te(7) bond lengths are 4.06 Å. Both Rb(1)-Te(8) bond lengths are 4.05 Å. There are eight inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to one Te(10), one Te(12), one Te(3), one Te(6), and two equivalent Te(4) atoms to form a mixture of face, corner, and edge-sharing CrTe6 octahedra. The corner-sharing octahedral tilt angles range from 50-51°. The Cr(1)-Te(10) bond length is 2.69 Å. The Cr(1)-Te(12) bond length is 2.68 Å. The Cr(1)-Te(3) bond length is 2.71 Å. The Cr(1)-Te(6) bond length is 2.86 Å. There is one shorter (2.78 Å) and one longer (2.85 Å) Cr(1)-Te(4) bond length. In the second Cr site, Cr(2) is bonded to one Te(10), one Te(11), one Te(2), one Te(6), and two equivalent Te(5) atoms to form a mixture of face, corner, and edge-sharing CrTe6 octahedra. The corner-sharing octahedral tilt angles range from 50-51°. The Cr(2)-Te(10) bond length is 2.68 Å. The Cr(2)-Te(11) bond length is 2.68 Å. The Cr(2)-Te(2) bond length is 2.71 Å. The Cr(2)-Te(6) bond length is 2.86 Å. There is one shorter (2.77 Å) and one longer (2.83 Å) Cr(2)-Te(5) bond length. In the third Cr site, Cr(3) is bonded to one Te(1), one Te(11), one Te(12), one Te(4), one Te(5), and one Te(6) atom to form a mixture of face, corner, and edge-sharing CrTe6 octahedra. The corner-sharing octahedral tilt angles range from 50-51°. The Cr(3)-Te(1) bond length is 2.71 Å. The Cr(3)-Te(11) bond length is 2.68 Å. The Cr(3)-Te(12) bond length is 2.68 Å. The Cr(3)-Te(4) bond length is 2.86 Å. The Cr(3)-Te(5) bond length is 2.85 Å. The Cr(3)-Te(6) bond length is 2.78 Å. In the fourth Cr site, Cr(4) is bonded to one Te(1), one Te(4), one Te(5), one Te(9), and two equivalent Te(8) atoms to form a mixture of face, corner, and edge-sharing CrTe6 octahedra. The corner-sharing octahedral tilt angles range from 49-51°. The Cr(4)-Te(1) bond length is 2.78 Å. The Cr(4)-Te(4) bond length is 2.80 Å. The Cr(4)-Te(5) bond length is 2.83 Å. The Cr(4)-Te(9) bond length is 2.70 Å. Both Cr(4)-Te(8) bond lengths are 2.70 Å. In the fifth Cr site, Cr(5) is bonded to one Te(2), one Te(5), one Te(6), one Te(7), one Te(8), and one Te(9) atom to form a mixture of face, corner, and edge-sharing CrTe6 octahedra. The corner-sharing octahedral tilt angles range from 49-51°. The Cr(5)-Te(2) bond length is 2.81 Å. The Cr(5)-Te(5) bond length is 2.81 Å. The Cr(5)-Te(6) bond length is 2.81 Å. The Cr(5)-Te(7) bond length is 2.71 Å. The Cr(5)-Te(8) bond length is 2.71 Å. The Cr(5)-Te(9) bond length is 2.68 Å. In the sixth Cr site, Cr(6) is bonded to one Te(3), one Te(4), one Te(6), one Te(9), and two equivalent Te(7) atoms to form a mixture of face, corner, and edge-sharing CrTe6 octahedra. The corner-sharing octahedral tilt angles range from 49-51°. The Cr(6)-Te(3) bond length is 2.78 Å. The Cr(6)-Te(4) bond length is 2.80 Å. The Cr(6)-Te(6) bond length is 2.82 Å. The Cr(6)-Te(9) bond length is 2.70 Å. There is one shorter (2.69 Å) and one longer (2.70 Å) Cr(6)-Te(7) bond length. In the seventh Cr site, Cr(7) is bonded to two equivalent Te(10), two equivalent Te(2), and two equivalent Te(3) atoms to form a mixture of corner and edge-sharing CrTe6 octahedra. The corner-sharing octahedral tilt angles are 49°. Both Cr(7)-Te(10) bond lengths are 2.73 Å. Both Cr(7)-Te(2) bond lengths are 2.74 Å. Both Cr(7)-Te(3) bond lengths are 2.75 Å. In the eighth Cr site, Cr(8) is bonded to one Te(11), one Te(12), one Te(2), one Te(3), and two equivalent Te(1) atoms to form a mixture of corner and edge-sharing CrTe6 octahedra. The corner-sharing octahedral tilt angles are 49°. The Cr(8)-Te(11) bond length is 2.73 Å. The Cr(8)-Te(12) bond length is 2.73 Å. The Cr(8)-Te(2) bond length is 2.74 Å. The Cr(8)-Te(3) bond length is 2.74 Å. Both Cr(8)-Te(1) bond lengths are 2.74 Å. There are twelve inequivalent Te sites. In the first Te site, Te(1) is bonded in a rectangular see-saw-like geometry to one Cr(3), one Cr(4), and two equivalent Cr(8) atoms. In the second Te site, Te(2) is bonded in a 5-coordinate geometry to one Rb(1), one Cr(2), one Cr(5), one Cr(7), and one Cr(8) atom. In the third Te site, Te(3) is bonded in a rectangular see-saw-like geometry to one Cr(1), one Cr(6), one Cr(7), and one Cr(8) atom. In the fourth Te site, Te(4) is bonded to one Cr(3), one Cr(4), one Cr(6), and two equivalent Cr(1) atoms to form distorted edge-sharing TeCr5 trigonal bipyramids. In the fifth Te site, Te(5) is bonded to one Cr(3), one Cr(4), one Cr(5), and two equivalent Cr(2) atoms to form distorted edge-sharing TeCr5 trigonal bipyramids. In the sixth Te site, Te(6) is bonded to one Cr(1), one Cr(2), one Cr(3), one Cr(5), and one Cr(6) atom to form distorted edge-sharing TeCr5 trigonal bipyramids. In the seventh Te site, Te(7) is bonded in a distorted rectangular see-saw-like geometry to one Rb(1), one Cr(5), and two equivalent Cr(6) atoms. In the eighth Te site, Te(8) is bonded in a distorted rectangular see-saw-like geometry to one Rb(1), one Cr(5), and two equivalent Cr(4) atoms. In the ninth Te site, Te(9) is bonded in a distorted T-shaped geometry to one Cr(4), one Cr(5), and one Cr(6) atom. In the tenth Te site, Te(10) is bonded in a rectangular see-saw-like geometry to one Rb(1), one Cr(1), one Cr(2), and one Cr(7) atom. In the eleventh Te site, Te(11) is bonded in a distorted T-shaped geometry to one Cr(2), one Cr(3), and one Cr(8) atom. In the twelfth Te site, Te(12) is bonded in a rectangular see-saw-like geometry to one Rb(1), one Cr(1), one Cr(3), and one Cr(8) atom.