V4Ge13O36 is Hydrophilite-derived structured and crystallizes in the monoclinic P2/m space group. There are two inequivalent V sites. In the first V site, V(1) is bonded in a 7-coordinate geometry to one O(9), two equivalent O(10), two equivalent O(11), and two equivalent O(15) atoms. In the second V site, V(2) is bonded in a 6-coordinate geometry to one O(11), one O(15), two equivalent O(1), and two equivalent O(2) atoms. There are seven inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to one O(3), one O(5), two equivalent O(12), and two equivalent O(17) atoms to form a mixture of corner and edge-sharing GeO6 octahedra. The corner-sharing octahedral tilt angles are 50°. In the second Ge site, Ge(2) is bonded to one O(4), one O(7), two equivalent O(13), and two equivalent O(16) atoms to form a mixture of corner and edge-sharing GeO6 octahedra. The corner-sharing octahedral tilt angles range from 49-50°. In the third Ge site, Ge(3) is bonded to one O(6), one O(8), two equivalent O(14), and two equivalent O(18) atoms to form a mixture of corner and edge-sharing GeO6 octahedra. The corner-sharing octahedral tilt angles are 50°. In the fourth Ge site, Ge(4) is bonded to one O(10), one O(17), two equivalent O(3), and two equivalent O(9) atoms to form a mixture of corner and edge-sharing GeO6 octahedra. The corner-sharing octahedral tilt angles are 50°. In the fifth Ge site, Ge(5) is bonded to one O(12), one O(16), two equivalent O(4), and two equivalent O(5) atoms to form a mixture of corner and edge-sharing GeO6 octahedra. The corner-sharing octahedral tilt angles range from 49-50°. In the sixth Ge site, Ge(6) is bonded to two equivalent O(14) and four equivalent O(8) atoms to form a mixture of corner and edge-sharing GeO6 octahedra. The corner-sharing octahedral tilt angles are 50°. In the seventh Ge site, Ge(7) is bonded to one O(13), one O(18), two equivalent O(6), and two equivalent O(7) atoms to form a mixture of corner and edge-sharing GeO6 octahedra. The corner-sharing octahedral tilt angles are 50°. There are eighteen inequivalent O sites. In the first O site, O(1) is bonded in a water-like geometry to two equivalent V(2) atoms. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to two equivalent V(2) and one O(2) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Ge(1) and two equivalent Ge(4) atoms. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Ge(2) and two equivalent Ge(5) atoms. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Ge(1) and two equivalent Ge(5) atoms. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Ge(3) and two equivalent Ge(7) atoms. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Ge(2) and two equivalent Ge(7) atoms. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Ge(3) and two equivalent Ge(6) atoms. In the ninth O site, O(9) is bonded in a trigonal planar geometry to one V(1) and two equivalent Ge(4) atoms. In the tenth O site, O(10) is bonded in a distorted trigonal planar geometry to two equivalent V(1) and one Ge(4) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one V(2) and two equivalent V(1) atoms. In the twelfth O site, O(12) is bonded in a distorted trigonal planar geometry to one Ge(5) and two equivalent Ge(1) atoms. In the thirteenth O site, O(13) is bonded in a distorted trigonal planar geometry to one Ge(7) and two equivalent Ge(2) atoms. In the fourteenth O site, O(14) is bonded in a distorted trigonal planar geometry to one Ge(6) and two equivalent Ge(3) atoms. In the fifteenth O site, O(15) is bonded in a distorted T-shaped geometry to one V(2) and two equivalent V(1) atoms. In the sixteenth O site, O(16) is bonded in a distorted trigonal planar geometry to one Ge(5) and two equivalent Ge(2) atoms. In the seventeenth O site, O(17) is bonded in a trigonal planar geometry to one Ge(4) and two equivalent Ge(1) atoms. In the eighteenth O site, O(18) is bonded in a distorted trigonal planar geometry to one Ge(7) and two equivalent Ge(3) atoms.
V4Ge13O36 is Hydrophilite-derived structured and crystallizes in the monoclinic P2/m space group. There are two inequivalent V sites. In the first V site, V(1) is bonded in a 7-coordinate geometry to one O(9), two equivalent O(10), two equivalent O(11), and two equivalent O(15) atoms. The V(1)-O(9) bond length is 2.03 Å. Both V(1)-O(10) bond lengths are 1.94 Å. Both V(1)-O(11) bond lengths are 2.24 Å. Both V(1)-O(15) bond lengths are 2.04 Å. In the second V site, V(2) is bonded in a 6-coordinate geometry to one O(11), one O(15), two equivalent O(1), and two equivalent O(2) atoms. The V(2)-O(11) bond length is 1.78 Å. The V(2)-O(15) bond length is 1.84 Å. Both V(2)-O(1) bond lengths are 1.81 Å. Both V(2)-O(2) bond lengths are 2.07 Å. There are seven inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to one O(3), one O(5), two equivalent O(12), and two equivalent O(17) atoms to form a mixture of corner and edge-sharing GeO6 octahedra. The corner-sharing octahedral tilt angles are 50°. The Ge(1)-O(3) bond length is 2.01 Å. The Ge(1)-O(5) bond length is 1.99 Å. Both Ge(1)-O(12) bond lengths are 1.90 Å. Both Ge(1)-O(17) bond lengths are 1.89 Å. In the second Ge site, Ge(2) is bonded to one O(4), one O(7), two equivalent O(13), and two equivalent O(16) atoms to form a mixture of corner and edge-sharing GeO6 octahedra. The corner-sharing octahedral tilt angles range from 49-50°. The Ge(2)-O(4) bond length is 1.99 Å. The Ge(2)-O(7) bond length is 2.00 Å. Both Ge(2)-O(13) bond lengths are 1.91 Å. Both Ge(2)-O(16) bond lengths are 1.90 Å. In the third Ge site, Ge(3) is bonded to one O(6), one O(8), two equivalent O(14), and two equivalent O(18) atoms to form a mixture of corner and edge-sharing GeO6 octahedra. The corner-sharing octahedral tilt angles are 50°. The Ge(3)-O(6) bond length is 1.99 Å. The Ge(3)-O(8) bond length is 2.00 Å. Both Ge(3)-O(14) bond lengths are 1.91 Å. Both Ge(3)-O(18) bond lengths are 1.90 Å. In the fourth Ge site, Ge(4) is bonded to one O(10), one O(17), two equivalent O(3), and two equivalent O(9) atoms to form a mixture of corner and edge-sharing GeO6 octahedra. The corner-sharing octahedral tilt angles are 50°. The Ge(4)-O(10) bond length is 2.01 Å. The Ge(4)-O(17) bond length is 1.98 Å. Both Ge(4)-O(3) bond lengths are 1.91 Å. Both Ge(4)-O(9) bond lengths are 1.91 Å. In the fifth Ge site, Ge(5) is bonded to one O(12), one O(16), two equivalent O(4), and two equivalent O(5) atoms to form a mixture of corner and edge-sharing GeO6 octahedra. The corner-sharing octahedral tilt angles range from 49-50°. The Ge(5)-O(12) bond length is 1.98 Å. The Ge(5)-O(16) bond length is 1.99 Å. Both Ge(5)-O(4) bond lengths are 1.91 Å. Both Ge(5)-O(5) bond lengths are 1.91 Å. In the sixth Ge site, Ge(6) is bonded to two equivalent O(14) and four equivalent O(8) atoms to form a mixture of corner and edge-sharing GeO6 octahedra. The corner-sharing octahedral tilt angles are 50°. Both Ge(6)-O(14) bond lengths are 2.01 Å. All Ge(6)-O(8) bond lengths are 1.91 Å. In the seventh Ge site, Ge(7) is bonded to one O(13), one O(18), two equivalent O(6), and two equivalent O(7) atoms to form a mixture of corner and edge-sharing GeO6 octahedra. The corner-sharing octahedral tilt angles are 50°. The Ge(7)-O(13) bond length is 2.00 Å. The Ge(7)-O(18) bond length is 2.01 Å. Both Ge(7)-O(6) bond lengths are 1.91 Å. Both Ge(7)-O(7) bond lengths are 1.90 Å. There are eighteen inequivalent O sites. In the first O site, O(1) is bonded in a water-like geometry to two equivalent V(2) atoms. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to two equivalent V(2) and one O(2) atom. The O(2)-O(2) bond length is 1.45 Å. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Ge(1) and two equivalent Ge(4) atoms. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Ge(2) and two equivalent Ge(5) atoms. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Ge(1) and two equivalent Ge(5) atoms. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Ge(3) and two equivalent Ge(7) atoms. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Ge(2) and two equivalent Ge(7) atoms. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Ge(3) and two equivalent Ge(6) atoms. In the ninth O site, O(9) is bonded in a trigonal planar geometry to one V(1) and two equivalent Ge(4) atoms. In the tenth O site, O(10) is bonded in a distorted trigonal planar geometry to two equivalent V(1) and one Ge(4) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one V(2) and two equivalent V(1) atoms. In the twelfth O site, O(12) is bonded in a distorted trigonal planar geometry to one Ge(5) and two equivalent Ge(1) atoms. In the thirteenth O site, O(13) is bonded in a distorted trigonal planar geometry to one Ge(7) and two equivalent Ge(2) atoms. In the fourteenth O site, O(14) is bonded in a distorted trigonal planar geometry to one Ge(6) and two equivalent Ge(3) atoms. In the fifteenth O site, O(15) is bonded in a distorted T-shaped geometry to one V(2) and two equivalent V(1) atoms. In the sixteenth O site, O(16) is bonded in a distorted trigonal planar geometry to one Ge(5) and two equivalent Ge(2) atoms. In the seventeenth O site, O(17) is bonded in a trigonal planar geometry to one Ge(4) and two equivalent Ge(1) atoms. In the eighteenth O site, O(18) is bonded in a distorted trigonal planar geometry to one Ge(7) and two equivalent Ge(3) atoms.