C7Bi2NH3O6 crystallizes in the monoclinic Cc space group. There are fourteen inequivalent C sites. In the first C site, C(1) is bonded in a distorted trigonal planar geometry to one C(3), one N(1), and one H(1) atom. The C(1)-C(3) bond length is 1.40 Å. The C(1)-N(1) bond length is 1.34 Å. The C(1)-H(1) bond length is 1.09 Å. In the second C site, C(2) is bonded in a distorted trigonal planar geometry to one C(4), one N(2), and one H(2) atom. The C(2)-C(4) bond length is 1.40 Å. The C(2)-N(2) bond length is 1.34 Å. The C(2)-H(2) bond length is 1.09 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one C(1), one C(11), and one C(5) atom. The C(3)-C(11) bond length is 1.50 Å. The C(3)-C(5) bond length is 1.40 Å. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one C(12), one C(2), and one C(6) atom. The C(4)-C(12) bond length is 1.50 Å. The C(4)-C(6) bond length is 1.39 Å. In the fifth C site, C(5) is bonded in a distorted single-bond geometry to one C(3); one C(7); and one H(3,4) atom. The C(5)-C(7) bond length is 1.40 Å. The C(5)-H(3,4) bond length is 1.09 Å. In the sixth C site, C(6) is bonded in a distorted single-bond geometry to one C(4); one C(8); and one H(3,4) atom. The C(6)-C(8) bond length is 1.40 Å. The C(6)-H(3,4) bond length is 1.09 Å. In the seventh C site, C(7) is bonded in a trigonal planar geometry to one C(13), one C(5), and one C(9) atom. The C(7)-C(13) bond length is 1.50 Å. The C(7)-C(9) bond length is 1.40 Å. In the eighth C site, C(8) is bonded in a trigonal planar geometry to one C(10), one C(14), and one C(6) atom. The C(8)-C(10) bond length is 1.40 Å. The C(8)-C(14) bond length is 1.50 Å. In the ninth C site, C(9) is bonded in a distorted trigonal planar geometry to one C(7), one N(1), and one H(5) atom. The C(9)-N(1) bond length is 1.35 Å. The C(9)-H(5) bond length is 1.09 Å. In the tenth C site, C(10) is bonded in a distorted trigonal planar geometry to one C(8), one N(2), and one H(6) atom. The C(10)-N(2) bond length is 1.35 Å. The C(10)-H(6) bond length is 1.09 Å. In the eleventh C site, C(11) is bonded in a distorted bent 120 degrees geometry to one C(3), one O(1), and one O(3) atom. The C(11)-O(1) bond length is 1.28 Å. The C(11)-O(3) bond length is 1.27 Å. In the twelfth C site, C(12) is bonded in a distorted bent 120 degrees geometry to one C(4), one O(2), and one O(4) atom. The C(12)-O(2) bond length is 1.28 Å. The C(12)-O(4) bond length is 1.27 Å. In the thirteenth C site, C(13) is bonded in a distorted bent 120 degrees geometry to one C(7), one O(5), and one O(7) atom. The C(13)-O(5) bond length is 1.28 Å. The C(13)-O(7) bond length is 1.27 Å. In the fourteenth C site, C(14) is bonded in a distorted bent 120 degrees geometry to one C(8), one O(6), and one O(8) atom. The C(14)-O(6) bond length is 1.28 Å. The C(14)-O(8) bond length is 1.27 Å. There are four inequivalent Bi sites. In the first Bi site, Bi(1) is bonded in a 5-coordinate geometry to one O(1), one O(11), one O(6), and two equivalent O(9) atoms. The Bi(1)-O(1) bond length is 2.53 Å. The Bi(1)-O(11) bond length is 2.36 Å. The Bi(1)-O(6) bond length is 2.36 Å. There is one shorter (2.14 Å) and one longer (2.27 Å) Bi(1)-O(9) bond length. In the second Bi site, Bi(2) is bonded in a 5-coordinate geometry to one O(12), one O(2), one O(5), and two equivalent O(10) atoms. The Bi(2)-O(12) bond length is 2.36 Å. The Bi(2)-O(2) bond length is 2.53 Å. The Bi(2)-O(5) bond length is 2.36 Å. There is one shorter (2.14 Å) and one longer (2.27 Å) Bi(2)-O(10) bond length. In the third Bi site, Bi(3) is bonded in a 4-coordinate geometry to one O(12), one O(9), and two equivalent O(11) atoms. The Bi(3)-O(12) bond length is 2.28 Å. The Bi(3)-O(9) bond length is 2.16 Å. There is one shorter (2.33 Å) and one longer (2.35 Å) Bi(3)-O(11) bond length. In the fourth Bi site, Bi(4) is bonded in a 5-coordinate geometry to one O(10), one O(11), one O(3), and two equivalent O(12) atoms. The Bi(4)-O(10) bond length is 2.16 Å. The Bi(4)-O(11) bond length is 2.28 Å. The Bi(4)-O(3) bond length is 2.70 Å. There is one shorter (2.33 Å) and one longer (2.36 Å) Bi(4)-O(12) bond length. There are two inequivalent N sites. In the first N site, N(1) is bonded in a bent 120 degrees geometry to one C(1) and one C(9) atom. In the second N site, N(2) is bonded in a bent 120 degrees geometry to one C(10) and one C(2) atom. There are five inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(2) atom. In the third H site, H(3,4) is bonded in a single-bond geometry to one C(5) atom. In the fourth H site, H(5) is bonded in a single-bond geometry to one C(9) atom. In the fifth H site, H(6) is bonded in a single-bond geometry to one C(10) atom. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one C(11) and one Bi(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one C(12) and one Bi(2) atom. In the third O site, O(3) is bonded in a single-bond geometry to one C(11) and one Bi(4) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one C(12) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one C(13) and one Bi(2) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one C(14) and one Bi(1) atom. In the seventh O site, O(7) is bonded in a single-bond geometry to one C(13) atom. In the eighth O site, O(8) is bonded in a single-bond geometry to one C(14) atom. In the ninth O site, O(9) is bonded in a trigonal planar geometry to one Bi(3) and two equivalent Bi(1) atoms. In the tenth O site, O(10) is bonded in a trigonal planar geometry to one Bi(4) and two equivalent Bi(2) atoms. In the eleventh O site, O(11) is bonded to one Bi(1), one Bi(4), and two equivalent Bi(3) atoms to form a mixture of edge and corner-sharing OBi4 tetrahedra. In the twelfth O site, O(12) is bonded to one Bi(2), one Bi(3), and two equivalent Bi(4) atoms to form a mixture of edge and corner-sharing OBi4 tetrahedra. Linkers: 4 [O]C(=O)c1cncc(C([O])=O)c1. Metal clusters: 8 [Bi]. The MOF has largest included sphere 2.03 A, density 4.22 g/cm3, surface area 1421.96 m2/g, accessible volume 0.03 cm3/g