Zn3Si2H34(C7O2)8 is Indium-like structured and crystallizes in the monoclinic C2/c space group. The structure is zero-dimensional and consists of four Zn3Si2H34(C7O2)8 clusters. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to one O(1), one O(3), one O(6), and one O(7) atom to form corner-sharing ZnO4 tetrahedra. The corner-sharing octahedral tilt angles are 81°. The Zn(1)-O(1) bond length is 1.97 Å. The Zn(1)-O(3) bond length is 1.97 Å. The Zn(1)-O(6) bond length is 1.97 Å. The Zn(1)-O(7) bond length is 1.92 Å. In the second Zn site, Zn(2) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(6) atoms to form corner-sharing ZnO6 octahedra. Both Zn(2)-O(2) bond lengths are 2.05 Å. Both Zn(2)-O(4) bond lengths are 2.00 Å. Both Zn(2)-O(6) bond lengths are 2.29 Å. Si(1) is bonded in a tetrahedral geometry to one C(10), one C(19), one C(20), and one C(5) atom. The Si(1)-C(10) bond length is 1.87 Å. The Si(1)-C(19) bond length is 1.89 Å. The Si(1)-C(20) bond length is 1.87 Å. The Si(1)-C(5) bond length is 1.88 Å. There are twenty-eight inequivalent C sites. In the first C site, C(3) is bonded in a distorted single-bond geometry to one C(2) and one H(2) atom. The C(3)-C(2) bond length is 1.38 Å. The C(3)-H(2) bond length is 0.95 Å. In the second C site, C(1) is bonded in a distorted bent 120 degrees geometry to one C(2), one O(1), and one O(2) atom. The C(1)-C(2) bond length is 1.50 Å. The C(1)-O(1) bond length is 1.27 Å. The C(1)-O(2) bond length is 1.25 Å. In the third C site, C(8) is bonded in a trigonal planar geometry to one C(12), one C(13), and one C(9) atom. The C(8)-C(12) bond length is 1.37 Å. The C(8)-C(13) bond length is 1.50 Å. The C(8)-C(9) bond length is 1.38 Å. In the fourth C site, C(9) is bonded in a distorted single-bond geometry to one C(8) and one H(6) atom. The C(9)-H(6) bond length is 0.95 Å. In the fifth C site, C(10) is bonded in a trigonal planar geometry to one Si(1), one C(11), and one C(28) atom. The C(10)-C(11) bond length is 1.42 Å. The C(10)-C(28) bond length is 1.39 Å. In the sixth C site, C(12) is bonded in a distorted single-bond geometry to one C(8) and one H(8) atom. The C(12)-H(8) bond length is 0.95 Å. In the seventh C site, C(13) is bonded in a distorted bent 120 degrees geometry to one C(8), one O(5), and one O(6) atom. The C(13)-O(5) bond length is 1.23 Å. The C(13)-O(6) bond length is 1.31 Å. In the eighth C site, C(11) is bonded in a distorted single-bond geometry to one C(10) and one H(7,17) atom. The C(11)-H(7,17) bond length is 0.95 Å. In the ninth C site, C(14) is bonded in a distorted single-bond geometry to one C(15), one C(19), and one H(9) atom. The C(14)-C(15) bond length is 1.39 Å. The C(14)-C(19) bond length is 1.38 Å. The C(14)-H(9) bond length is 0.95 Å. In the tenth C site, C(15) is bonded in a distorted trigonal planar geometry to one C(14), one C(16), and one H(10) atom. The C(15)-C(16) bond length is 1.37 Å. The C(15)-H(10) bond length is 0.95 Å. In the eleventh C site, C(4) is bonded in a distorted single-bond geometry to one C(5) and one H(3) atom. The C(4)-C(5) bond length is 1.38 Å. The C(4)-H(3) bond length is 0.95 Å. In the twelfth C site, C(18) is bonded in a distorted single-bond geometry to one C(19) and one H(12) atom. The C(18)-C(19) bond length is 1.39 Å. The C(18)-H(12) bond length is 0.95 Å. In the thirteenth C site, C(19) is bonded in a trigonal planar geometry to one Si(1), one C(14), and one C(18) atom. In the fourteenth C site, C(20) is bonded in a trigonal planar geometry to one Si(1), one C(23), and one C(26) atom. The C(20)-C(23) bond length is 1.39 Å. The C(20)-C(26) bond length is 1.39 Å. In the fifteenth C site, C(21) is bonded in a trigonal planar geometry to one C(22), one C(24), and one C(25) atom. The C(21)-C(22) bond length is 1.50 Å. The C(21)-C(24) bond length is 1.39 Å. The C(21)-C(25) bond length is 1.39 Å. In the sixteenth C site, C(22) is bonded in a distorted bent 120 degrees geometry to one C(21), one O(7), and one O(8) atom. The C(22)-O(7) bond length is 1.25 Å. The C(22)-O(8) bond length is 1.20 Å. In the seventeenth C site, C(23) is bonded in a distorted single-bond geometry to one C(20) and one H(13) atom. The C(23)-H(13) bond length is 0.95 Å. In the eighteenth C site, C(24) is bonded in a distorted single-bond geometry to one C(21) and one H(14) atom. The C(24)-H(14) bond length is 0.95 Å. In the nineteenth C site, C(25) is bonded in a distorted single-bond geometry to one C(21) and one H(15) atom. The C(25)-H(15) bond length is 0.95 Å. In the twentieth C site, C(26) is bonded in a distorted single-bond geometry to one C(20) and one H(16) atom. The C(26)-H(16) bond length is 0.95 Å. In the twenty-first C site, C(7) is bonded in a distorted single-bond geometry to one C(2) and one H(5) atom. The C(7)-C(2) bond length is 1.36 Å. The C(7)-H(5) bond length is 0.95 Å. In the twenty-second C site, C(28) is bonded in a distorted single-bond geometry to one C(10) and one H(7,17) atom. The C(28)-H(7,17) bond length is 0.95 Å. In the twenty-third C site, C(27) is bonded in a distorted bent 120 degrees geometry to one C(16), one O(3), and one O(4) atom. The C(27)-C(16) bond length is 1.50 Å. The C(27)-O(3) bond length is 1.26 Å. The C(27)-O(4) bond length is 1.25 Å. In the twenty-fourth C site, C(5) is bonded in a trigonal planar geometry to one Si(1), one C(4), and one C(6) atom. The C(5)-C(6) bond length is 1.39 Å. In the twenty-fifth C site, C(6) is bonded in a distorted single-bond geometry to one C(5) and one H(4) atom. The C(6)-H(4) bond length is 0.95 Å. In the twenty-sixth C site, C(16) is bonded in a trigonal planar geometry to one C(15), one C(17), and one C(27) atom. The C(16)-C(17) bond length is 1.40 Å. In the twenty-seventh C site, C(17) is bonded in a distorted single-bond geometry to one C(16) and one H(11) atom. The C(17)-H(11) bond length is 0.95 Å. In the twenty-eighth C site, C(2) is bonded in a trigonal planar geometry to one C(1), one C(3), and one C(7) atom. There are sixteen inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(8) atom. The H(1)-O(8) bond length is 0.84 Å. In the second H site, H(2) is bonded in a single-bond geometry to one C(3) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(4) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(6) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(7) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(9) atom. In the seventh H site, H(7,17) is bonded in a single-bond geometry to one C(11) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(12) atom. In the ninth H site, H(9) is bonded in a single-bond geometry to one C(14) atom. In the tenth H site, H(10) is bonded in a single-bond geometry to one C(15) atom. In the eleventh H site, H(11) is bonded in a single-bond geometry to one C(17) atom. In the twelfth H site, H(12) is bonded in a single-bond geometry to one C(18) atom. In the thirteenth H site, H(13) is bonded in a single-bond geometry to one C(23) atom. In the fourteenth H site, H(14) is bonded in a single-bond geometry to one C(24) atom. In the fifteenth H site, H(15) is bonded in a single-bond geometry to one C(25) atom. In the sixteenth H site, H(16) is bonded in a single-bond geometry to one C(26) atom. There are eight inequivalent O sites. In the first O site, O(5) is bonded in a single-bond geometry to one C(13) atom. In the second O site, O(6) is bonded in a distorted trigonal non-coplanar geometry to one Zn(1), one Zn(2), and one C(13) atom. In the third O site, O(7) is bonded in a bent 120 degrees geometry to one Zn(1) and one C(22) atom. In the fourth O site, O(8) is bonded in a water-like geometry to one C(22) and one H(1) atom. In the fifth O site, O(1) is bonded in a bent 120 degrees geometry to one Zn(1) and one C(1) atom. In the sixth O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Zn(2) and one C(1) atom. In the seventh O site, O(3) is bonded in a bent 120 degrees geometry to one Zn(1) and one C(27) atom. In the eighth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Zn(2) and one C(27) atom. Linkers: 4 [O]C(=O)c1ccc([Si](c2ccc(C([O])=O)cc2)(c2ccc(C([O])=O)cc2)c2ccc(C(=O)O)cc2)cc1. Metal clusters: 2 O=[C]O[Zn@]1(O[C]O)O[C]O[Zn]2(O[C]O[Zn@@](O[C]O)(O[C]=O)O[C]O2)O[C]O1. The MOF has largest included sphere 6.14 A, density 0.99 g/cm3, surface area 4254.52 m2/g, accessible volume 0.54 cm3/g