ErC14N3H14O9F4 is Indium-like structured and crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of two ErC14N3H14O9F4 clusters. There are two inequivalent Er sites. In the first Er site, Er(1) is bonded in a 9-coordinate geometry to one O(1), one O(11), one O(13), one O(17), one O(3), one O(5), one O(6), one O(8), and one O(9) atom. The Er(1)-O(1) bond length is 2.35 Å. The Er(1)-O(11) bond length is 2.34 Å. The Er(1)-O(13) bond length is 2.46 Å. The Er(1)-O(17) bond length is 2.42 Å. The Er(1)-O(3) bond length is 2.31 Å. The Er(1)-O(5) bond length is 2.31 Å. The Er(1)-O(6) bond length is 2.60 Å. The Er(1)-O(8) bond length is 2.43 Å. The Er(1)-O(9) bond length is 2.35 Å. In the second Er site, Er(2) is bonded in a 9-coordinate geometry to one O(10), one O(12), one O(14), one O(18), one O(2), one O(4), one O(5), one O(6), and one O(7) atom. The Er(2)-O(10) bond length is 2.35 Å. The Er(2)-O(12) bond length is 2.34 Å. The Er(2)-O(14) bond length is 2.46 Å. The Er(2)-O(18) bond length is 2.42 Å. The Er(2)-O(2) bond length is 2.35 Å. The Er(2)-O(4) bond length is 2.31 Å. The Er(2)-O(5) bond length is 2.60 Å. The Er(2)-O(6) bond length is 2.31 Å. The Er(2)-O(7) bond length is 2.43 Å. There are eighteen inequivalent C sites. In the first 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 1.52 Å. The C(1)-O(1) bond length is 1.27 Å. The C(1)-O(2) bond length is 1.27 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one C(1) and two equivalent C(3,4) atoms. Both C(2)-C(3,4) bond lengths are 1.40 Å. In the third C site, C(3,4) is bonded in a single-bond geometry to one C(2) and one F(1,2) atom. The C(3,4)-F(1,2) bond length is 1.35 Å. In the fourth C site, C(5,6) is bonded in a distorted single-bond geometry to one C(7) and one F(3,4) atom. The C(5,6)-C(7) bond length is 1.40 Å. The C(5,6)-F(3,4) bond length is 1.36 Å. In the fifth C site, C(7) is bonded in a trigonal planar geometry to one C(8) and two equivalent C(5,6) atoms. The C(7)-C(8) bond length is 1.51 Å. In the sixth C site, C(8) is bonded in a distorted bent 120 degrees geometry to one C(7), one O(3), and one O(4) atom. The C(8)-O(3) bond length is 1.26 Å. The C(8)-O(4) bond length is 1.26 Å. In the seventh C site, C(9) is bonded in a distorted bent 120 degrees geometry to one C(11,12); one O(5); and one O(7) atom. The C(9)-C(11,12) bond length is 1.50 Å. The C(9)-O(5) bond length is 1.27 Å. The C(9)-O(7) bond length is 1.26 Å. In the eighth C site, C(10) is bonded in a distorted bent 120 degrees geometry to one C(11,12); one O(6); and one O(8) atom. The C(10)-C(11,12) bond length is 1.50 Å. The C(10)-O(6) bond length is 1.27 Å. The C(10)-O(8) bond length is 1.26 Å. In the ninth C site, C(11,12) is bonded in a trigonal planar geometry to one C(13,14); one C(15,16); and one C(9) atom. The C(11,12)-C(13,14) bond length is 1.39 Å. The C(11,12)-C(15,16) bond length is 1.39 Å. In the tenth C site, C(13,14) is bonded in a distorted single-bond geometry to one C(11,12) and one F(5,6) atom. The C(13,14)-F(5,6) bond length is 1.35 Å. In the eleventh C site, C(15,16) is bonded in a distorted single-bond geometry to one C(11,12) and one F(7,8) atom. The C(15,16)-F(7,8) bond length is 1.36 Å. In the twelfth C site, C(17) is bonded in a trigonal planar geometry to one N(1,2); one H(1,2); and one O(9) atom. The C(17)-N(1,2) bond length is 1.33 Å. The C(17)-H(1,2) bond length is 1.10 Å. The C(17)-O(9) bond length is 1.25 Å. In the thirteenth C site, C(18) is bonded in a trigonal planar geometry to one N(1,2); one H(1,2); and one O(10) atom. The C(18)-N(1,2) bond length is 1.33 Å. The C(18)-H(1,2) bond length is 1.10 Å. The C(18)-O(10) bond length is 1.25 Å. In the fourteenth C site, C(19,20) is bonded to one N(1,2); one H(3,4); one H(5,6); and one H(7,8) atom to form corner-sharing CH3N tetrahedra. The C(19,20)-N(1,2) bond length is 1.46 Å. The C(19,20)-H(3,4) bond length is 1.10 Å. The C(19,20)-H(5,6) bond length is 1.10 Å. The C(19,20)-H(7,8) bond length is 1.09 Å. In the fifteenth C site, C(21,22) is bonded to one N(1,2); one H(11,12); one H(13,14); and one H(9,10) atom to form corner-sharing CH3N tetrahedra. The C(21,22)-N(1,2) bond length is 1.45 Å. The C(21,22)-H(11,12) bond length is 1.10 Å. The C(21,22)-H(13,14) bond length is 1.10 Å. The C(21,22)-H(9,10) bond length is 1.10 Å. In the sixteenth C site, C(23,24) is bonded in a trigonal planar geometry to one N(3), one H(15), and one O(11) atom. The C(23,24)-N(3) bond length is 1.33 Å. The C(23,24)-H(15) bond length is 1.10 Å. The C(23,24)-O(11) bond length is 1.26 Å. In the seventeenth C site, C(25,26) is bonded to one N(3); one H(17,18); one H(19,20); and one H(21,22) atom to form corner-sharing CH3N tetrahedra. The C(25,26)-N(3) bond length is 1.46 Å. The C(25,26)-H(17,18) bond length is 1.10 Å. The C(25,26)-H(19,20) bond length is 1.10 Å. The C(25,26)-H(21,22) bond length is 1.09 Å. In the eighteenth C site, C(27,28) is bonded to one N(3); one H(23,24); one H(25,26); and one H(27,28) atom to form corner-sharing CH3N tetrahedra. The C(27,28)-N(3) bond length is 1.46 Å. The C(27,28)-H(23,24) bond length is 1.09 Å. The C(27,28)-H(25,26) bond length is 1.10 Å. The C(27,28)-H(27,28) bond length is 1.10 Å. There are four inequivalent N sites. In the first N site, N(1,2) is bonded in a trigonal planar geometry to one C(17); one C(19,20); and one C(21,22) atom. In the second N site, N(3) is bonded in a trigonal planar geometry to one C(23,24); one C(25,26); and one C(27,28) atom. In the third N site, N(4) is bonded in a trigonal planar geometry to one C(23,24); one C(25,26); and one C(27,28) atom. The N(4)-C(23,24) bond length is 1.33 Å. The N(4)-C(25,26) bond length is 1.46 Å. The N(4)-C(27,28) bond length is 1.46 Å. In the fourth N site, N(5,6) is bonded in a trigonal planar geometry to one O(13); one O(15,16); and one O(17) atom. The N(5,6)-O(13) bond length is 1.28 Å. The N(5,6)-O(15,16) bond length is 1.24 Å. The N(5,6)-O(17) bond length is 1.30 Å. There are fifteen inequivalent H sites. In the first H site, H(1,2) is bonded in a single-bond geometry to one C(17) atom. In the second H site, H(3,4) is bonded in a single-bond geometry to one C(19,20) atom. In the third H site, H(5,6) is bonded in a single-bond geometry to one C(19,20) atom. In the fourth H site, H(7,8) is bonded in a single-bond geometry to one C(19,20) atom. In the fifth H site, H(9,10) is bonded in a single-bond geometry to one C(21,22) atom. In the sixth H site, H(11,12) is bonded in a single-bond geometry to one C(21,22) atom. In the seventh H site, H(13,14) is bonded in a single-bond geometry to one C(21,22) atom. In the eighth H site, H(15) is bonded in a single-bond geometry to one C(23,24) atom. In the ninth H site, H(16) is bonded in a single-bond geometry to one C(23,24) atom. The H(16)-C(23,24) bond length is 1.10 Å. In the tenth H site, H(17,18) is bonded in a single-bond geometry to one C(25,26) atom. In the eleventh H site, H(19,20) is bonded in a single-bond geometry to one C(25,26) atom. In the twelfth H site, H(21,22) is bonded in a single-bond geometry to one C(25,26) atom. In the thirteenth H site, H(23,24) is bonded in a single-bond geometry to one C(27,28) atom. In the fourteenth H site, H(25,26) is bonded in a single-bond geometry to one C(27,28) atom. In the fifteenth H site, H(27,28) is bonded in a single-bond geometry to one C(27,28) atom. There are seventeen inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Er(1) and one C(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Er(2) and one C(1) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Er(1) and one C(8) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Er(2) and one C(8) atom. In the fifth O site, O(5) is bonded in a 1-coordinate geometry to one Er(1), one Er(2), and one C(9) atom. In the sixth O site, O(6) is bonded in a 1-coordinate geometry to one Er(1), one Er(2), and one C(10) atom. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to one Er(2) and one C(9) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to one Er(1) and one C(10) atom. In the ninth O site, O(9) is bonded in a distorted single-bond geometry to one Er(1) and one C(17) atom. In the tenth O site, O(10) is bonded in a distorted single-bond geometry to one Er(2) and one C(18) atom. In the eleventh O site, O(11) is bonded in a distorted bent 120 degrees geometry to one Er(1) and one C(23,24) atom. In the twelfth O site, O(12) is bonded in a distorted bent 120 degrees geometry to one Er(2) and one C(23,24) atom. The O(12)-C(23,24) bond length is 1.26 Å. In the thirteenth O site, O(13) is bonded in a distorted L-shaped geometry to one Er(1) and one N(5,6) atom. In the fourteenth O site, O(14) is bonded in a distorted L-shaped geometry to one Er(2) and one N(5,6) atom. The O(14)-N(5,6) bond length is 1.28 Å. In the fifteenth O site, O(15,16) is bonded in a single-bond geometry to one N(5,6) atom. In the sixteenth O site, O(17) is bonded in an L-shaped geometry to one Er(1) and one N(5,6) atom. In the seventeenth O site, O(18) is bonded in an L-shaped geometry to one Er(2) and one N(5,6) atom. The O(18)-N(5,6) bond length is 1.30 Å. There are four inequivalent F sites. In the first F site, F(1,2) is bonded in a single-bond geometry to one C(3,4) atom. In the second F site, F(3,4) is bonded in a single-bond geometry to one C(5,6) atom. In the third F site, F(5,6) is bonded in a single-bond geometry to one C(13,14) atom. In the fourth F site, F(7,8) is bonded in a single-bond geometry to one C(15,16) atom. Linkers: 4 [O]C(=O)c1c(F)c(F)c(C([O])=O)c(F)c1F. Metal clusters: 4 [Er]. The MOF has largest included sphere 4.32 A, density 1.73 g/cm3, surface area 3647.29 m2/g, accessible volume 0.21 cm3/g