Ba2UCrTe7 crystallizes in the orthorhombic Pnma space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 10-coordinate geometry to one Te(3), one Te(5), two equivalent Te(2), two equivalent Te(4), and four equivalent Te(1) atoms. In the second Ba site, Ba(2) is bonded in a 10-coordinate geometry to one Te(4), one Te(5), two equivalent Te(1), two equivalent Te(3), and four equivalent Te(2) atoms. U(1) is bonded in a 8-coordinate geometry to one Te(3), one Te(4), two equivalent Te(1), two equivalent Te(2), and two equivalent Te(5) atoms. Cr(1) is bonded to two equivalent Te(3), two equivalent Te(4), and two equivalent Te(5) atoms to form face-sharing CrTe6 octahedra. There are five inequivalent Te sites. In the first Te site, Te(3) is bonded to one Ba(1), two equivalent Ba(2), one U(1), and two equivalent Cr(1) atoms to form distorted TeBa3UCr2 pentagonal pyramids that share corners with four equivalent Te(3)Ba3UCr2 pentagonal pyramids, faces with three equivalent Te(5)Ba2U2Cr2 pentagonal pyramids, and faces with three equivalent Te(4)Ba3UCr2 pentagonal pyramids. In the second Te site, Te(4) is bonded to one Ba(2), two equivalent Ba(1), one U(1), and two equivalent Cr(1) atoms to form distorted TeBa3UCr2 pentagonal pyramids that share corners with four equivalent Te(4)Ba3UCr2 pentagonal pyramids, faces with three equivalent Te(5)Ba2U2Cr2 pentagonal pyramids, and faces with three equivalent Te(3)Ba3UCr2 pentagonal pyramids. In the third Te site, Te(5) is bonded to one Ba(1), one Ba(2), two equivalent U(1), and two equivalent Cr(1) atoms to form TeBa2U2Cr2 pentagonal pyramids that share corners with four equivalent Te(5)Ba2U2Cr2 pentagonal pyramids, faces with three equivalent Te(3)Ba3UCr2 pentagonal pyramids, and faces with three equivalent Te(4)Ba3UCr2 pentagonal pyramids. In the fourth Te site, Te(1) is bonded in a 6-coordinate geometry to one Ba(2), two equivalent Ba(1), one U(1), and two equivalent Te(1) atoms. In the fifth Te site, Te(2) is bonded in a 6-coordinate geometry to one Ba(1), two equivalent Ba(2), one U(1), and two equivalent Te(2) atoms.
Ba2UCrTe7 crystallizes in the orthorhombic Pnma space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 10-coordinate geometry to one Te(3), one Te(5), two equivalent Te(2), two equivalent Te(4), and four equivalent Te(1) atoms. The Ba(1)-Te(3) bond length is 3.76 Å. The Ba(1)-Te(5) bond length is 3.55 Å. Both Ba(1)-Te(2) bond lengths are 3.64 Å. Both Ba(1)-Te(4) bond lengths are 3.65 Å. There are two shorter (3.62 Å) and two longer (3.70 Å) Ba(1)-Te(1) bond lengths. In the second Ba site, Ba(2) is bonded in a 10-coordinate geometry to one Te(4), one Te(5), two equivalent Te(1), two equivalent Te(3), and four equivalent Te(2) atoms. The Ba(2)-Te(4) bond length is 3.75 Å. The Ba(2)-Te(5) bond length is 3.59 Å. Both Ba(2)-Te(1) bond lengths are 3.67 Å. Both Ba(2)-Te(3) bond lengths are 3.67 Å. There are two shorter (3.58 Å) and two longer (3.59 Å) Ba(2)-Te(2) bond lengths. U(1) is bonded in a 8-coordinate geometry to one Te(3), one Te(4), two equivalent Te(1), two equivalent Te(2), and two equivalent Te(5) atoms. The U(1)-Te(3) bond length is 3.12 Å. The U(1)-Te(4) bond length is 3.11 Å. Both U(1)-Te(1) bond lengths are 3.15 Å. Both U(1)-Te(2) bond lengths are 3.14 Å. Both U(1)-Te(5) bond lengths are 3.29 Å. Cr(1) is bonded to two equivalent Te(3), two equivalent Te(4), and two equivalent Te(5) atoms to form face-sharing CrTe6 octahedra. Both Cr(1)-Te(3) bond lengths are 2.79 Å. Both Cr(1)-Te(4) bond lengths are 2.80 Å. Both Cr(1)-Te(5) bond lengths are 2.84 Å. There are five inequivalent Te sites. In the first Te site, Te(3) is bonded to one Ba(1), two equivalent Ba(2), one U(1), and two equivalent Cr(1) atoms to form distorted TeBa3UCr2 pentagonal pyramids that share corners with four equivalent Te(3)Ba3UCr2 pentagonal pyramids, faces with three equivalent Te(5)Ba2U2Cr2 pentagonal pyramids, and faces with three equivalent Te(4)Ba3UCr2 pentagonal pyramids. In the second Te site, Te(4) is bonded to one Ba(2), two equivalent Ba(1), one U(1), and two equivalent Cr(1) atoms to form distorted TeBa3UCr2 pentagonal pyramids that share corners with four equivalent Te(4)Ba3UCr2 pentagonal pyramids, faces with three equivalent Te(5)Ba2U2Cr2 pentagonal pyramids, and faces with three equivalent Te(3)Ba3UCr2 pentagonal pyramids. In the third Te site, Te(5) is bonded to one Ba(1), one Ba(2), two equivalent U(1), and two equivalent Cr(1) atoms to form TeBa2U2Cr2 pentagonal pyramids that share corners with four equivalent Te(5)Ba2U2Cr2 pentagonal pyramids, faces with three equivalent Te(3)Ba3UCr2 pentagonal pyramids, and faces with three equivalent Te(4)Ba3UCr2 pentagonal pyramids. In the fourth Te site, Te(1) is bonded in a 6-coordinate geometry to one Ba(2), two equivalent Ba(1), one U(1), and two equivalent Te(1) atoms. There is one shorter (3.07 Å) and one longer (3.13 Å) Te(1)-Te(1) bond length. In the fifth Te site, Te(2) is bonded in a 6-coordinate geometry to one Ba(1), two equivalent Ba(2), one U(1), and two equivalent Te(2) atoms. There is one shorter (3.07 Å) and one longer (3.14 Å) Te(2)-Te(2) bond length.