EuC16H8O8Cl is Indium-like structured and crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of two EuC16H8O8Cl clusters. Eu(1) is bonded in a 9-coordinate geometry to one O(1), one O(2), one O(3), one O(5), one O(7), one O(8), two equivalent O(4), and one Cl(1) atom. The Eu(1)-O(1) bond length is 2.39 Å. The Eu(1)-O(2) bond length is 2.37 Å. The Eu(1)-O(3) bond length is 2.44 Å. The Eu(1)-O(5) bond length is 2.60 Å. The Eu(1)-O(7) bond length is 2.53 Å. The Eu(1)-O(8) bond length is 2.42 Å. There is one shorter (2.37 Å) and one longer (2.65 Å) Eu(1)-O(4) bond length. The Eu(1)-Cl(1) bond length is 2.95 Å. There are sixteen inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one C(2), one C(6), and one C(7) atom. The C(1)-C(2) bond length is 1.39 Å. The C(1)-C(6) bond length is 1.39 Å. The C(1)-C(7) bond length is 1.51 Å. In the second C site, C(2) is bonded in a distorted single-bond geometry to one C(1) and one H(1) atom. The C(2)-H(1) bond length is 0.93 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to one C(4) and one H(2) atom. The C(3)-C(4) bond length is 1.39 Å. The C(3)-H(2) bond length is 0.93 Å. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one C(3), one C(5), and one C(8) atom. The C(4)-C(5) bond length is 1.38 Å. The C(4)-C(8) bond length is 1.48 Å. In the fifth C site, C(5) is bonded in a distorted single-bond geometry to one C(4) and one H(3) atom. The C(5)-H(3) bond length is 0.93 Å. In the sixth C site, C(6) is bonded in a distorted single-bond geometry to one C(1) and one H(4) atom. The C(6)-H(4) bond length is 0.93 Å. In the seventh C site, C(7) is bonded in a distorted bent 120 degrees geometry to one C(1), one O(1), and one O(2) atom. The C(7)-O(1) bond length is 1.25 Å. The C(7)-O(2) bond length is 1.27 Å. In the eighth C site, C(8) is bonded in a distorted bent 120 degrees geometry to one C(4), 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 1.28 Å. In the ninth C site, C(9) is bonded in a trigonal planar geometry to one C(10), one C(11), and one C(12) atom. The C(9)-C(10) bond length is 1.41 Å. The C(9)-C(11) bond length is 1.38 Å. The C(9)-C(12) bond length is 1.52 Å. In the tenth C site, C(10) is bonded in a single-bond geometry to one C(9) and one H(5) atom. The C(10)-H(5) bond length is 0.93 Å. In the eleventh C site, C(11) is bonded in a distorted single-bond geometry to one C(9) and one H(6) atom. The C(11)-H(6) bond length is 0.93 Å. In the twelfth C site, C(12) is bonded in a distorted bent 120 degrees geometry to one C(9), one O(5), and one O(6) atom. The C(12)-O(5) bond length is 1.22 Å. The C(12)-O(6) bond length is 1.31 Å. In the thirteenth C site, C(13) is bonded in a trigonal planar geometry to one C(14), one C(15), and one C(16) atom. The C(13)-C(14) bond length is 1.35 Å. The C(13)-C(15) bond length is 1.37 Å. The C(13)-C(16) bond length is 1.51 Å. In the fourteenth C site, C(14) is bonded in a distorted single-bond geometry to one C(13) and one H(7) atom. The C(14)-H(7) bond length is 0.93 Å. In the fifteenth C site, C(15) is bonded in a distorted single-bond geometry to one C(13) and one H(8) atom. The C(15)-H(8) bond length is 0.93 Å. In the sixteenth C site, C(16) is bonded in a distorted bent 120 degrees geometry to one C(13), one O(7), and one O(8) atom. The C(16)-O(7) bond length is 1.26 Å. The C(16)-O(8) bond length is 1.25 Å. There are eight inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(2) atom. 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(5) 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(10) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(11) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(14) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(15) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Eu(1) and one C(7) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Eu(1) and one C(7) atom. In the third O site, O(3) is bonded in a distorted water-like geometry to one Eu(1) and one C(8) atom. In the fourth O site, O(4) is bonded in a 1-coordinate geometry to two equivalent Eu(1) and one C(8) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Eu(1) and one C(12) atom. In the sixth O site, O(6) is bonded in a single-bond geometry to one C(12) atom. In the seventh O site, O(7) is bonded in a distorted L-shaped geometry to one Eu(1) and one C(16) atom. In the eighth O site, O(8) is bonded in a distorted L-shaped geometry to one Eu(1) and one C(16) atom. Cl(1) is bonded in a single-bond geometry to one Eu(1) atom. Linkers: 8 [O]C(=O)c1ccc(C([O])=O)cc1. Metal clusters: 2 [C]1O[Eu]234(O1)O[C]O[Eu]1(O[C]O1)(O[C]O2)(O[C]O3)O[C]O4.[Cl].[Cl].[O][C]=O.[O][C]=O. RCSR code: hex. The MOF has largest included sphere 4.74 A, density 1.46 g/cm3, surface area 3395.99 m2/g, accessible volume 0.33 cm3/g