SrH4(CO3)2CH2CH crystallizes in the monoclinic P2_1/c space group. The structure consists of four 02329_fluka molecules and four 02329_fluka molecules inside a SrH4(CO3)2 framework. In the SrH4(CO3)2 framework, Sr(1) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(3), one O(4), two equivalent O(5), and two equivalent O(6) atoms. The Sr(1)-O(1) bond length is 2.63 Å. The Sr(1)-O(2) bond length is 2.64 Å. The Sr(1)-O(3) bond length is 2.63 Å. The Sr(1)-O(4) bond length is 2.56 Å. There is one shorter (2.60 Å) and one longer (2.66 Å) Sr(1)-O(5) bond length. There is one shorter (2.55 Å) and one longer (2.65 Å) Sr(1)-O(6) bond length. There are two inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one O(1) and one O(3) atom. The C(1)-O(1) bond length is 1.27 Å. The C(1)-O(3) bond length is 1.28 Å. In the second C site, C(4) is bonded in a distorted bent 120 degrees geometry to one O(5) and one O(6) atom. The C(4)-O(5) bond length is 1.27 Å. The C(4)-O(6) bond length is 1.27 Å. There are four inequivalent H sites. In the first H site, H(1) is bonded in a distorted single-bond geometry to one O(1) and one O(2) atom. The H(1)-O(1) bond length is 1.68 Å. The H(1)-O(2) bond length is 1.01 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(2) atom. The H(2)-O(2) bond length is 0.99 Å. In the third H site, H(3) is bonded in a single-bond geometry to one O(4) atom. The H(3)-O(4) bond length is 0.98 Å. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(4) atom. The H(4)-O(4) bond length is 0.99 Å. There are six inequivalent O sites. In the first O site, O(5) is bonded in a distorted single-bond geometry to two equivalent Sr(1) and one C(4) atom. In the second O site, O(6) is bonded in a distorted single-bond geometry to two equivalent Sr(1) and one C(4) atom. In the third O site, O(1) is bonded in a distorted single-bond geometry to one Sr(1), one C(1), and one H(1) atom. In the fourth O site, O(2) is bonded in a water-like geometry to one Sr(1), one H(1), and one H(2) atom. In the fifth O site, O(3) is bonded in a distorted single-bond geometry to one Sr(1) and one C(1) atom. In the sixth O site, O(4) is bonded in a distorted water-like geometry to one Sr(1), one H(3), and one H(4) atom. Linkers: 2 [O]C(=O)C[C@H](C([O])=O)[C@@H](CC([O])=O)C([O])=O. Metal clusters: 4 [Sr]. The MOF has largest included sphere 1.81 A, density 2.29 g/cm3, surface area 2650.07 m2/g, accessible volume 0.11 cm3/g