FeC2O4(HOCH2CH2OH) crystallizes in the triclinic P1 space group. The structure consists of four 02329_fluka molecules inside a FeH4(CO2)3 framework. In the FeH4(CO2)3 framework, there are four inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in an octahedral geometry to one O(10), one O(13), one O(18), one O(21), one O(3), and one O(5) atom. The Fe(1)-O(10) bond length is 2.02 Å. The Fe(1)-O(13) bond length is 2.09 Å. The Fe(1)-O(18) bond length is 2.11 Å. The Fe(1)-O(21) bond length is 2.23 Å. The Fe(1)-O(3) bond length is 2.11 Å. The Fe(1)-O(5) bond length is 2.28 Å. In the second Fe site, Fe(2) is bonded in an octahedral geometry to one O(14), one O(17), one O(22), one O(4), one O(6), and one O(9) atom. The Fe(2)-O(14) bond length is 2.09 Å. The Fe(2)-O(17) bond length is 2.11 Å. The Fe(2)-O(22) bond length is 2.23 Å. The Fe(2)-O(4) bond length is 2.09 Å. The Fe(2)-O(6) bond length is 2.29 Å. The Fe(2)-O(9) bond length is 2.01 Å. In the third Fe site, Fe(3) is bonded in an octahedral geometry to one O(1), one O(12), one O(15), one O(20), one O(23), and one O(7) atom. The Fe(3)-O(1) bond length is 2.09 Å. The Fe(3)-O(12) bond length is 2.02 Å. The Fe(3)-O(15) bond length is 2.10 Å. The Fe(3)-O(20) bond length is 2.09 Å. The Fe(3)-O(23) bond length is 2.22 Å. The Fe(3)-O(7) bond length is 2.28 Å. In the fourth Fe site, Fe(4) is bonded in an octahedral geometry to one O(11), one O(16), one O(19), one O(2), one O(24), and one O(8) atom. The Fe(4)-O(11) bond length is 2.03 Å. The Fe(4)-O(16) bond length is 2.09 Å. The Fe(4)-O(19) bond length is 2.09 Å. The Fe(4)-O(2) bond length is 2.11 Å. The Fe(4)-O(24) bond length is 2.22 Å. The Fe(4)-O(8) bond length is 2.27 Å. There are twelve inequivalent C sites. In the first C site, C(1) is bonded in a distorted water-like geometry to one H(9,10,11,12) and one O(21) atom. The C(1)-H(9,10,11,12) bond length is 1.10 Å. The C(1)-O(21) bond length is 1.43 Å. In the second C site, C(2) is bonded in a distorted water-like geometry to one H(9,10,11,12) and one O(22) atom. The C(2)-H(9,10,11,12) bond length is 1.10 Å. The C(2)-O(22) bond length is 1.43 Å. In the third C site, C(3) is bonded in a distorted water-like geometry to one H(9,10,11,12) and one O(23) atom. The C(3)-H(9,10,11,12) bond length is 1.10 Å. The C(3)-O(23) bond length is 1.43 Å. In the fourth C site, C(4) is bonded in a distorted water-like geometry to one H(9,10,11,12) and one O(24) atom. The C(4)-H(9,10,11,12) bond length is 1.10 Å. The C(4)-O(24) bond length is 1.42 Å. In the fifth C site, C(5) is bonded in a distorted bent 120 degrees geometry to one O(13) and one O(17) atom. The C(5)-O(13) bond length is 1.26 Å. The C(5)-O(17) bond length is 1.29 Å. In the sixth C site, C(6) is bonded in a distorted bent 120 degrees geometry to one O(14) and one O(18) atom. The C(6)-O(14) bond length is 1.26 Å. The C(6)-O(18) bond length is 1.29 Å. In the seventh C site, C(7) is bonded in a distorted bent 120 degrees geometry to one O(15) and one O(19) atom. The C(7)-O(15) bond length is 1.26 Å. The C(7)-O(19) bond length is 1.29 Å. In the eighth C site, C(8) is bonded in a distorted bent 120 degrees geometry to one O(16) and one O(20) atom. The C(8)-O(16) bond length is 1.26 Å. The C(8)-O(20) bond length is 1.29 Å. In the ninth C site, C(9) is bonded in a distorted bent 120 degrees geometry to one O(1) and one O(9) atom. The C(9)-O(1) bond length is 1.27 Å. The C(9)-O(9) bond length is 1.28 Å. In the tenth C site, C(10) is bonded in a distorted bent 120 degrees geometry to one O(10) and one O(2) atom. The C(10)-O(10) bond length is 1.28 Å. The C(10)-O(2) bond length is 1.27 Å. In the eleventh C site, C(11) is bonded in a distorted bent 120 degrees geometry to one O(11) and one O(3) atom. The C(11)-O(11) bond length is 1.27 Å. The C(11)-O(3) bond length is 1.27 Å. In the twelfth C site, C(12) is bonded in a distorted bent 120 degrees geometry to one O(12) and one O(4) atom. The C(12)-O(12) bond length is 1.28 Å. The C(12)-O(4) bond length is 1.27 Å. There are thirteen inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(5) atom. The H(1)-O(5) bond length is 1.00 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(6) atom. The H(2)-O(6) bond length is 1.00 Å. In the third H site, H(3) is bonded in a single-bond geometry to one O(7) atom. The H(3)-O(7) bond length is 1.00 Å. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(8) atom. The H(4)-O(8) bond length is 1.00 Å. In the fifth H site, H(5) is bonded in a single-bond geometry to one O(5) atom. The H(5)-O(5) bond length is 1.00 Å. In the sixth H site, H(6) is bonded in a single-bond geometry to one O(6) atom. The H(6)-O(6) bond length is 1.00 Å. In the seventh H site, H(7) is bonded in a single-bond geometry to one O(7) atom. The H(7)-O(7) bond length is 1.00 Å. In the eighth H site, H(8) is bonded in a single-bond geometry to one O(8) atom. The H(8)-O(8) bond length is 1.00 Å. In the ninth H site, H(9,10,11,12) is bonded in a single-bond geometry to one C(1) atom. In the tenth H site, H(13) is bonded in a single-bond geometry to one O(21) atom. The H(13)-O(21) bond length is 1.00 Å. In the eleventh H site, H(14) is bonded in a single-bond geometry to one O(22) atom. The H(14)-O(22) bond length is 1.00 Å. In the twelfth H site, H(15) is bonded in a single-bond geometry to one O(23) atom. The H(15)-O(23) bond length is 1.00 Å. In the thirteenth H site, H(16) is bonded in a single-bond geometry to one O(24) atom. The H(16)-O(24) bond length is 1.00 Å. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded in a 1-coordinate geometry to one Fe(3) and one C(9) atom. In the second O site, O(2) is bonded in a 1-coordinate geometry to one Fe(4) and one C(10) atom. In the third O site, O(3) is bonded in a 1-coordinate geometry to one Fe(1) and one C(11) atom. In the fourth O site, O(4) is bonded in a 1-coordinate geometry to one Fe(2) and one C(12) atom. In the fifth O site, O(5) is bonded in a water-like geometry to one Fe(1), one H(1), and one H(5) atom. In the sixth O site, O(6) is bonded in a water-like geometry to one Fe(2), one H(2), and one H(6) atom. In the seventh O site, O(7) is bonded in a water-like geometry to one Fe(3), one H(3), and one H(7) atom. In the eighth O site, O(8) is bonded in a water-like geometry to one Fe(4), one H(4), and one H(8) atom. In the ninth O site, O(9) is bonded in a distorted bent 120 degrees geometry to one Fe(2) and one C(9) atom. In the tenth O site, O(10) is bonded in a distorted bent 120 degrees geometry to one Fe(1) and one C(10) atom. In the eleventh O site, O(11) is bonded in a distorted bent 120 degrees geometry to one Fe(4) and one C(11) atom. In the twelfth O site, O(12) is bonded in a distorted bent 120 degrees geometry to one Fe(3) and one C(12) atom. In the thirteenth O site, O(13) is bonded in a bent 120 degrees geometry to one Fe(1) and one C(5) atom. In the fourteenth O site, O(14) is bonded in a bent 120 degrees geometry to one Fe(2) and one C(6) atom. In the fifteenth O site, O(15) is bonded in a bent 120 degrees geometry to one Fe(3) and one C(7) atom. In the sixteenth O site, O(16) is bonded in a bent 120 degrees geometry to one Fe(4) and one C(8) atom. In the seventeenth O site, O(17) is bonded in a distorted bent 120 degrees geometry to one Fe(2) and one C(5) atom. In the eighteenth O site, O(18) is bonded in a distorted bent 120 degrees geometry to one Fe(1) and one C(6) atom. In the nineteenth O site, O(19) is bonded in a distorted bent 120 degrees geometry to one Fe(4) and one C(7) atom. In the twentieth O site, O(20) is bonded in a distorted bent 120 degrees geometry to one Fe(3) and one C(8) atom. In the twenty-first O site, O(21) is bonded in a 3-coordinate geometry to one Fe(1), one C(1), and one H(13) atom. In the twenty-second O site, O(22) is bonded in a 3-coordinate geometry to one Fe(2), one C(2), and one H(14) atom. In the twenty-third O site, O(23) is bonded in a 3-coordinate geometry to one Fe(3), one C(3), and one H(15) atom. In the twenty-fourth O site, O(24) is bonded in a 3-coordinate geometry to one Fe(4), one C(4), and one H(16) atom. Linkers: 4 [O]C(=O)C[C@H](O)C([O])=O. Metal clusters: 4 [Fe]. RCSR code: unc. The MOF has largest included sphere 1.91 A, density 2.17 g/cm3, surface area 2879.91 m2/g, accessible volume 0.05 cm3/g