RbSi2C12NH30O3 is Copper structured and crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of two RbSi2C12NH30O3 clusters. Rb(1) is bonded in a 8-coordinate geometry to two equivalent N(1), one H(12), one H(17), one H(8), one O(1), one O(2), and one O(3) atom. There is one shorter (2.89 Å) and one longer (3.05 Å) Rb(1)-N(1) bond length. The Rb(1)-H(12) bond length is 3.11 Å. The Rb(1)-H(17) bond length is 3.03 Å. The Rb(1)-H(8) bond length is 3.02 Å. The Rb(1)-O(1) bond length is 3.13 Å. The Rb(1)-O(2) bond length is 2.86 Å. The Rb(1)-O(3) bond length is 2.94 Å. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded to one C(1), one C(2), one C(3), and one N(1) atom to form corner-sharing SiC3N tetrahedra. The Si(1)-C(1) bond length is 1.90 Å. The Si(1)-C(2) bond length is 1.90 Å. The Si(1)-C(3) bond length is 1.90 Å. The Si(1)-N(1) bond length is 1.69 Å. In the second Si site, Si(2) is bonded to one C(4), one C(5), one C(6), and one N(1) atom to form corner-sharing SiC3N tetrahedra. The Si(2)-C(4) bond length is 1.90 Å. The Si(2)-C(5) bond length is 1.90 Å. The Si(2)-C(6) bond length is 1.90 Å. The Si(2)-N(1) bond length is 1.69 Å. There are twelve inequivalent C sites. In the first C site, C(1) is bonded to one Si(1); one H(2); and two equivalent H(1,3) atoms to form corner-sharing CSiH3 tetrahedra. The C(1)-H(2) bond length is 1.10 Å. Both C(1)-H(1,3) bond lengths are 1.10 Å. In the second C site, C(2) is bonded to one Si(1), one H(4), one H(5), and one H(6) atom to form corner-sharing CSiH3 tetrahedra. The C(2)-H(4) bond length is 1.10 Å. The C(2)-H(5) bond length is 1.10 Å. The C(2)-H(6) bond length is 1.10 Å. In the third C site, C(3) is bonded to one Si(1), one H(7), one H(8), and one H(9) atom to form corner-sharing CSiH3 tetrahedra. The C(3)-H(7) bond length is 1.10 Å. The C(3)-H(8) bond length is 1.10 Å. The C(3)-H(9) bond length is 1.10 Å. In the fourth C site, C(4) is bonded to one Si(2), one H(10), one H(11), and one H(12) atom to form corner-sharing CSiH3 tetrahedra. The C(4)-H(10) bond length is 1.10 Å. The C(4)-H(11) bond length is 1.10 Å. The C(4)-H(12) bond length is 1.10 Å. In the fifth C site, C(5) is bonded to one Si(2), one H(13), one H(14), and one H(15) atom to form corner-sharing CSiH3 tetrahedra. The C(5)-H(13) bond length is 1.10 Å. The C(5)-H(14) bond length is 1.10 Å. The C(5)-H(15) bond length is 1.10 Å. In the sixth C site, C(6) is bonded to one Si(2), one H(16), one H(17), and one H(18) atom to form corner-sharing CSiH3 tetrahedra. The C(6)-H(16) bond length is 1.10 Å. The C(6)-H(17) bond length is 1.10 Å. The C(6)-H(18) bond length is 1.10 Å. In the seventh C site, C(7) is bonded in a distorted trigonal non-coplanar geometry to one H(19), one H(20), and one O(1) atom. The C(7)-H(19) bond length is 1.11 Å. The C(7)-H(20) bond length is 1.10 Å. The C(7)-O(1) bond length is 1.44 Å. In the eighth C site, C(8) is bonded in a distorted trigonal non-coplanar geometry to one H(21), one H(22), and one O(2) atom. The C(8)-H(21) bond length is 1.11 Å. The C(8)-H(22) bond length is 1.10 Å. The C(8)-O(2) bond length is 1.44 Å. In the ninth C site, C(9) is bonded in a distorted trigonal non-coplanar geometry to one H(23), one H(24), and one O(2) atom. The C(9)-H(23) bond length is 1.10 Å. The C(9)-H(24) bond length is 1.10 Å. The C(9)-O(2) bond length is 1.44 Å. In the tenth C site, C(10) is bonded in a distorted trigonal non-coplanar geometry to one H(25), one H(26), and one O(1) atom. The C(10)-H(25) bond length is 1.10 Å. The C(10)-H(26) bond length is 1.11 Å. The C(10)-O(1) bond length is 1.44 Å. In the eleventh C site, C(11) is bonded in a distorted trigonal non-coplanar geometry to one H(27), one H(28), and one O(3) atom. The C(11)-H(27) bond length is 1.11 Å. The C(11)-H(28) bond length is 1.10 Å. The C(11)-O(3) bond length is 1.44 Å. In the twelfth C site, C(12) is bonded in a distorted trigonal non-coplanar geometry to one H(29), one H(30), and one O(3) atom. The C(12)-H(29) bond length is 1.10 Å. The C(12)-H(30) bond length is 1.10 Å. The C(12)-O(3) bond length is 1.44 Å. N(1) is bonded in a distorted bent 120 degrees geometry to two equivalent Rb(1), one Si(1), and one Si(2) atom. There are twenty-nine inequivalent H sites. In the first H site, H(30) is bonded in a single-bond geometry to one C(12) atom. In the second H site, H(1,3) is bonded in a single-bond geometry to one C(1) atom. In the third H site, H(2) is bonded in a single-bond geometry to one C(1) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(2) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(2) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(2) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(3) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one Rb(1) and one C(3) atom. In the ninth H site, H(9) is bonded in a single-bond geometry to one C(3) atom. In the tenth H site, H(10) is bonded in a single-bond geometry to one C(4) atom. In the eleventh H site, H(11) is bonded in a single-bond geometry to one C(4) atom. In the twelfth H site, H(12) is bonded in a single-bond geometry to one Rb(1) and one C(4) atom. In the thirteenth H site, H(13) is bonded in a single-bond geometry to one C(5) atom. In the fourteenth H site, H(14) is bonded in a single-bond geometry to one C(5) atom. In the fifteenth H site, H(15) is bonded in a single-bond geometry to one C(5) atom. In the sixteenth H site, H(16) is bonded in a single-bond geometry to one C(6) atom. In the seventeenth H site, H(17) is bonded in a single-bond geometry to one Rb(1) and one C(6) atom. In the eighteenth H site, H(18) is bonded in a single-bond geometry to one C(6) atom. In the nineteenth H site, H(19) is bonded in a single-bond geometry to one C(7) atom. In the twentieth H site, H(20) is bonded in a single-bond geometry to one C(7) atom. In the twenty-first H site, H(21) is bonded in a single-bond geometry to one C(8) atom. In the twenty-second H site, H(22) is bonded in a single-bond geometry to one C(8) atom. In the twenty-third H site, H(23) is bonded in a single-bond geometry to one C(9) atom. In the twenty-fourth H site, H(24) is bonded in a single-bond geometry to one C(9) atom. In the twenty-fifth H site, H(25) is bonded in a single-bond geometry to one C(10) atom. In the twenty-sixth H site, H(26) is bonded in a single-bond geometry to one C(10) atom. In the twenty-seventh H site, H(27) is bonded in a single-bond geometry to one C(11) atom. In the twenty-eighth H site, H(28) is bonded in a single-bond geometry to one C(11) atom. In the twenty-ninth H site, H(29) is bonded in a single-bond geometry to one C(12) atom. There are three inequivalent O sites. In the first O site, O(1) is bonded in a water-like geometry to one Rb(1), one C(10), and one C(7) atom. In the second O site, O(2) is bonded in a distorted water-like geometry to one Rb(1), one C(8), and one C(9) atom. In the third O site, O(3) is bonded in a distorted water-like geometry to one Rb(1), one C(11), and one C(12) atom. Linkers: 6 C1COCCO1. Metal clusters: 4 [Rb]. The MOF has largest included sphere 4.78 A, density 1.21 g/cm3, surface area 5813.40 m2/g, accessible volume 0.26 cm3/g