YH12(C7O2)3 crystallizes in the triclinic P1 space group. There are three inequivalent Y sites. In the first Y site, Y(1) is bonded in a distorted pentagonal pyramidal geometry to one O(1,7,19); one O(2,8,14,20); one O(3,9,15,21); one O(4,10,16,22); one O(5); and one O(6,12,18,24) atom. The Y(1)-O(1,7,19) bond length is 2.32 Å. The Y(1)-O(2,8,14,20) bond length is 2.24 Å. The Y(1)-O(3,9,15,21) bond length is 2.29 Å. The Y(1)-O(4,10,16,22) bond length is 2.28 Å. The Y(1)-O(5) bond length is 2.26 Å. The Y(1)-O(6,12,18,24) bond length is 2.31 Å. In the second Y site, Y(2,4) is bonded in a distorted pentagonal pyramidal geometry to one O(1,7,19); one O(11,17,23); one O(2,8,14,20); one O(3,9,15,21); one O(4,10,16,22); and one O(6,12,18,24) atom. The Y(2,4)-O(1,7,19) bond length is 2.32 Å. The Y(2,4)-O(11,17,23) bond length is 2.26 Å. The Y(2,4)-O(2,8,14,20) bond length is 2.24 Å. The Y(2,4)-O(3,9,15,21) bond length is 2.29 Å. The Y(2,4)-O(4,10,16,22) bond length is 2.28 Å. The Y(2,4)-O(6,12,18,24) bond length is 2.31 Å. In the third Y site, Y(3) is bonded in a distorted pentagonal pyramidal geometry to one O(11,17,23); one O(13); one O(2,8,14,20); one O(3,9,15,21); one O(4,10,16,22); and one O(6,12,18,24) atom. The Y(3)-O(11,17,23) bond length is 2.26 Å. The Y(3)-O(13) bond length is 2.32 Å. The Y(3)-O(2,8,14,20) bond length is 2.24 Å. The Y(3)-O(3,9,15,21) bond length is 2.29 Å. The Y(3)-O(4,10,16,22) bond length is 2.28 Å. The Y(3)-O(6,12,18,24) bond length is 2.31 Å. There are fifty-five inequivalent C sites. In the first C site, C(1) is bonded in a distorted trigonal planar geometry to one C(2); one C(20); and one H(1,25) atom. The C(1)-C(2) bond length is 1.37 Å. The C(1)-C(20) bond length is 1.40 Å. The C(1)-H(1,25) bond length is 1.14 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one C(1); one C(17,59); and one C(3,45) atom. The C(2)-C(17,59) bond length is 1.38 Å. The C(2)-C(3,45) bond length is 1.49 Å. In the third C site, C(3,45) is bonded in a trigonal planar geometry to one C(2), one C(4), and one C(8) atom. The C(3,45)-C(4) bond length is 1.43 Å. The C(3,45)-C(8) bond length is 1.37 Å. In the fourth C site, C(4) is bonded in a distorted trigonal planar geometry to one C(3,45); one C(5,47); and one H(2,26) atom. The C(4)-C(5,47) bond length is 1.37 Å. The C(4)-H(2,26) bond length is 1.14 Å. In the fifth C site, C(5,47) is bonded in a distorted trigonal planar geometry to one C(4); one C(6,27,48,69); and one H(3,15,27,39) atom. The C(5,47)-C(6,27,48,69) bond length is 1.38 Å. The C(5,47)-H(3,15,27,39) bond length is 1.14 Å. In the sixth C site, C(6,27,48,69) is bonded in a trigonal planar geometry to one C(5,47); one C(7,49); and one C(9,51) atom. The C(6,27,48,69)-C(7,49) bond length is 1.39 Å. The C(6,27,48,69)-C(9,51) bond length is 1.50 Å. In the seventh C site, C(7,49) is bonded in a distorted single-bond geometry to one C(6,27,48,69) and one H(4,16,28,40) atom. The C(7,49)-H(4,16,28,40) bond length is 1.14 Å. In the eighth C site, C(8) is bonded in a distorted single-bond geometry to one C(3,45) and one H(5,29) atom. The C(8)-H(5,29) bond length is 1.14 Å. In the ninth C site, C(9,51) is bonded in a distorted bent 120 degrees geometry to one C(6,27,48,69); one O(2,8,14,20); and one O(4,10,16,22) atom. The C(9,51)-O(2,8,14,20) bond length is 1.25 Å. The C(9,51)-O(4,10,16,22) bond length is 1.25 Å. In the tenth C site, C(10) is bonded in a trigonal planar geometry to one C(11), one C(15), and one C(52) atom. The C(10)-C(11) bond length is 1.40 Å. The C(10)-C(15) bond length is 1.39 Å. The C(10)-C(52) bond length is 1.45 Å. In the eleventh C site, C(11) is bonded in a distorted single-bond geometry to one C(10) and one H(6,18,30,42) atom. The C(11)-H(6,18,30,42) bond length is 1.14 Å. In the twelfth C site, C(12,33) is bonded in a distorted single-bond geometry to one C(13,34) and one H(7,19,31,43) atom. The C(12,33)-C(13,34) bond length is 1.36 Å. The C(12,33)-H(7,19,31,43) bond length is 1.14 Å. In the thirteenth C site, C(13,34) is bonded in a trigonal planar geometry to one C(12,33); one C(14,35); and one C(16,37) atom. The C(13,34)-C(14,35) bond length is 1.40 Å. The C(13,34)-C(16,37) bond length is 1.50 Å. In the fourteenth C site, C(14,35) is bonded in a distorted trigonal planar geometry to one C(13,34); one C(15); and one H(8,20) atom. The C(14,35)-C(15) bond length is 1.37 Å. The C(14,35)-H(8,20) bond length is 1.14 Å. In the fifteenth C site, C(15) is bonded in a distorted single-bond geometry to one C(10); one C(14,35); and one H(9,21) atom. The C(15)-H(9,21) bond length is 1.14 Å. In the sixteenth C site, C(16,37) is bonded in a distorted bent 120 degrees geometry to one C(13,34); one O(3,9,15,21); and one O(6,12,18,24) atom. The C(16,37)-O(3,9,15,21) bond length is 1.23 Å. The C(16,37)-O(6,12,18,24) bond length is 1.26 Å. In the seventeenth C site, C(17,59) is bonded in a single-bond geometry to one C(2) and one H(10,34) atom. The C(17,59)-H(10,34) bond length is 1.14 Å. In the eighteenth C site, C(18) is bonded in a distorted single-bond geometry to one C(19) and one H(11) atom. The C(18)-C(19) bond length is 1.39 Å. The C(18)-H(11) bond length is 1.14 Å. In the nineteenth C site, C(19) is bonded in a trigonal planar geometry to one C(18), one C(20), and one C(63) atom. The C(19)-C(20) bond length is 1.41 Å. The C(19)-C(63) bond length is 1.47 Å. In the twentieth C site, C(20) is bonded in a distorted single-bond geometry to one C(1), one C(19), and one H(12) atom. The C(20)-H(12) bond length is 1.14 Å. In the twenty-first C site, C(21) is bonded in a bent 120 degrees geometry to one C(61); one O(1,7,19); and one O(11,17,23) atom. The C(21)-C(61) bond length is 1.47 Å. The C(21)-O(1,7,19) bond length is 1.24 Å. The C(21)-O(11,17,23) bond length is 1.26 Å. In the twenty-second C site, C(22,64) is bonded in a distorted trigonal planar geometry to one C(23,65); one C(41,83); and one H(13,37) atom. The C(22,64)-C(23,65) bond length is 1.37 Å. The C(22,64)-C(41,83) bond length is 1.40 Å. The C(22,64)-H(13,37) bond length is 1.14 Å. In the twenty-third C site, C(23,65) is bonded in a trigonal planar geometry to one C(22,64); one C(24,66); and one C(38,80) atom. The C(23,65)-C(24,66) bond length is 1.49 Å. The C(23,65)-C(38,80) bond length is 1.38 Å. In the twenty-fourth C site, C(24,66) is bonded in a trigonal planar geometry to one C(23,65); one C(25,67); and one C(29,71) atom. The C(24,66)-C(25,67) bond length is 1.43 Å. The C(24,66)-C(29,71) bond length is 1.37 Å. In the twenty-fifth C site, C(25,67) is bonded in a distorted trigonal planar geometry to one C(24,66); one C(26,68); and one H(14,38) atom. The C(25,67)-C(26,68) bond length is 1.37 Å. The C(25,67)-H(14,38) bond length is 1.14 Å. In the twenty-sixth C site, C(26,68) is bonded in a distorted trigonal planar geometry to one C(25,67); one C(6,27,48,69); and one H(3,15,27,39) atom. The C(26,68)-C(6,27,48,69) bond length is 1.38 Å. The C(26,68)-H(3,15,27,39) bond length is 1.14 Å. In the twenty-seventh C site, C(28,70) is bonded in a distorted single-bond geometry to one C(6,27,48,69) and one H(4,16,28,40) atom. The C(28,70)-C(6,27,48,69) bond length is 1.39 Å. The C(28,70)-H(4,16,28,40) bond length is 1.14 Å. In the twenty-eighth C site, C(29,71) is bonded in a distorted single-bond geometry to one C(24,66) and one H(17,41) atom. The C(29,71)-H(17,41) bond length is 1.14 Å. In the twenty-ninth C site, C(30,72) is bonded in a distorted bent 120 degrees geometry to one C(6,27,48,69); one O(2,8,14,20); and one O(4,10,16,22) atom. The C(30,72)-C(6,27,48,69) bond length is 1.50 Å. The C(30,72)-O(2,8,14,20) bond length is 1.25 Å. The C(30,72)-O(4,10,16,22) bond length is 1.25 Å. In the thirtieth C site, C(31) is bonded in a trigonal planar geometry to one C(32), one C(36), and one C(73) atom. The C(31)-C(32) bond length is 1.40 Å. The C(31)-C(36) bond length is 1.39 Å. The C(31)-C(73) bond length is 1.45 Å. In the thirty-first C site, C(32) is bonded in a distorted single-bond geometry to one C(31) and one H(6,18,30,42) atom. The C(32)-H(6,18,30,42) bond length is 1.14 Å. In the thirty-second C site, C(36) is bonded in a distorted single-bond geometry to one C(14,35); one C(31); and one H(9,21) atom. The C(36)-C(14,35) bond length is 1.37 Å. The C(36)-H(9,21) bond length is 1.14 Å. In the thirty-third C site, C(38,80) is bonded in a single-bond geometry to one C(23,65) and one H(22,46) atom. The C(38,80)-H(22,46) bond length is 1.14 Å. In the thirty-fourth C site, C(39,81) is bonded in a distorted single-bond geometry to one C(40,82) and one H(23,35,47) atom. The C(39,81)-C(40,82) bond length is 1.39 Å. The C(39,81)-H(23,35,47) bond length is 1.14 Å. In the thirty-fifth C site, C(40,82) is bonded in a trigonal planar geometry to one C(39,81); one C(41,83); and one C(42,84) atom. The C(40,82)-C(41,83) bond length is 1.41 Å. The C(40,82)-C(42,84) bond length is 1.47 Å. In the thirty-sixth C site, C(41,83) is bonded in a distorted single-bond geometry to one C(22,64); one C(40,82); and one H(24,48) atom. The C(41,83)-H(24,48) bond length is 1.14 Å. In the thirty-seventh C site, C(42,84) is bonded in a bent 120 degrees geometry to one C(40,82); one O(1,7,19); and one O(11,17,23) atom. The C(42,84)-O(1,7,19) bond length is 1.24 Å. The C(42,84)-O(11,17,23) bond length is 1.26 Å. In the thirty-eighth C site, C(43) is bonded in a distorted trigonal planar geometry to one C(44); one C(62); and one H(1,25) atom. The C(43)-C(44) bond length is 1.37 Å. The C(43)-C(62) bond length is 1.40 Å. The C(43)-H(1,25) bond length is 1.14 Å. In the thirty-ninth C site, C(44) is bonded in a trigonal planar geometry to one C(17,59); one C(3,45); and one C(43) atom. The C(44)-C(17,59) bond length is 1.38 Å. The C(44)-C(3,45) bond length is 1.49 Å. In the fortieth C site, C(46) is bonded in a distorted trigonal planar geometry to one C(3,45); one C(5,47); and one H(2,26) atom. The C(46)-C(3,45) bond length is 1.43 Å. The C(46)-C(5,47) bond length is 1.37 Å. The C(46)-H(2,26) bond length is 1.14 Å. In the forty-first C site, C(50) is bonded in a distorted single-bond geometry to one C(3,45) and one H(5,29) atom. The C(50)-C(3,45) bond length is 1.37 Å. The C(50)-H(5,29) bond length is 1.14 Å. In the forty-second C site, C(52) is bonded in a trigonal planar geometry to one C(10), one C(53), and one C(57) atom. The C(52)-C(53) bond length is 1.40 Å. The C(52)-C(57) bond length is 1.39 Å. In the forty-third C site, C(53) is bonded in a distorted single-bond geometry to one C(52) and one H(6,18,30,42) atom. The C(53)-H(6,18,30,42) bond length is 1.14 Å. In the forty-fourth C site, C(54,75) is bonded in a distorted single-bond geometry to one C(55,76) and one H(7,19,31,43) atom. The C(54,75)-C(55,76) bond length is 1.36 Å. The C(54,75)-H(7,19,31,43) bond length is 1.14 Å. In the forty-fifth C site, C(55,76) is bonded in a trigonal planar geometry to one C(54,75); one C(56,77); and one C(58,79) atom. The C(55,76)-C(56,77) bond length is 1.40 Å. The C(55,76)-C(58,79) bond length is 1.50 Å. In the forty-sixth C site, C(56,77) is bonded in a distorted trigonal planar geometry to one C(55,76); one C(57); and one H(32,44) atom. The C(56,77)-C(57) bond length is 1.37 Å. The C(56,77)-H(32,44) bond length is 1.14 Å. In the forty-seventh C site, C(57) is bonded in a distorted single-bond geometry to one C(52); one C(56,77); and one H(33,45) atom. The C(57)-H(33,45) bond length is 1.14 Å. In the forty-eighth C site, C(58,79) is bonded in a distorted bent 120 degrees geometry to one C(55,76); one O(3,9,15,21); and one O(6,12,18,24) atom. The C(58,79)-O(3,9,15,21) bond length is 1.23 Å. The C(58,79)-O(6,12,18,24) bond length is 1.26 Å. In the forty-ninth C site, C(60) is bonded in a distorted single-bond geometry to one C(61) and one H(23,35,47) atom. The C(60)-C(61) bond length is 1.39 Å. The C(60)-H(23,35,47) bond length is 1.14 Å. In the fiftieth C site, C(61) is bonded in a trigonal planar geometry to one C(21), one C(60), and one C(62) atom. The C(61)-C(62) bond length is 1.41 Å. In the fifty-first C site, C(62) is bonded in a distorted single-bond geometry to one C(43), one C(61), and one H(36) atom. The C(62)-H(36) bond length is 1.14 Å. In the fifty-second C site, C(63) is bonded in a bent 120 degrees geometry to one C(19), one O(13), and one O(5) atom. The C(63)-O(13) bond length is 1.24 Å. The C(63)-O(5) bond length is 1.26 Å. In the fifty-third C site, C(73) is bonded in a trigonal planar geometry to one C(31), one C(74), and one C(78) atom. The C(73)-C(74) bond length is 1.40 Å. The C(73)-C(78) bond length is 1.39 Å. In the fifty-fourth C site, C(74) is bonded in a distorted single-bond geometry to one C(73) and one H(6,18,30,42) atom. The C(74)-H(6,18,30,42) bond length is 1.14 Å. In the fifty-fifth C site, C(78) is bonded in a distorted single-bond geometry to one C(56,77); one C(73); and one H(33,45) atom. The C(78)-C(56,77) bond length is 1.37 Å. The C(78)-H(33,45) bond length is 1.14 Å. There are twenty-one inequivalent H sites. In the first H site, H(1,25) is bonded in a single-bond geometry to one C(1) atom. In the second H site, H(2,26) is bonded in a single-bond geometry to one C(4) atom. In the third H site, H(3,15,27,39) is bonded in a single-bond geometry to one C(5,47) atom. In the fourth H site, H(4,16,28,40) is bonded in a single-bond geometry to one C(7,49) atom. In the fifth H site, H(5,29) is bonded in a single-bond geometry to one C(8) atom. In the sixth H site, H(6,18,30,42) is bonded in a single-bond geometry to one C(11) atom. In the seventh H site, H(7,19,31,43) is bonded in a single-bond geometry to one C(12,33) atom. In the eighth H site, H(8,20) is bonded in a single-bond geometry to one C(14,35) atom. In the ninth H site, H(9,21) is bonded in a single-bond geometry to one C(15) atom. In the tenth H site, H(10,34) is bonded in a single-bond geometry to one C(17,59) atom. In the eleventh H site, H(11) is bonded in a single-bond geometry to one C(18) atom. In the twelfth H site, H(12) is bonded in a single-bond geometry to one C(20) atom. In the thirteenth H site, H(13,37) is bonded in a single-bond geometry to one C(22,64) atom. In the fourteenth H site, H(14,38) is bonded in a single-bond geometry to one C(25,67) atom. In the fifteenth H site, H(17,41) is bonded in a single-bond geometry to one C(29,71) atom. In the sixteenth H site, H(22,46) is bonded in a single-bond geometry to one C(38,80) atom. In the seventeenth H site, H(23,35,47) is bonded in a single-bond geometry to one C(39,81) atom. In the eighteenth H site, H(24,48) is bonded in a single-bond geometry to one C(41,83) atom. In the nineteenth H site, H(32,44) is bonded in a single-bond geometry to one C(56,77) atom. In the twentieth H site, H(33,45) is bonded in a single-bond geometry to one C(57) atom. In the twenty-first H site, H(36) is bonded in a single-bond geometry to one C(62) atom. There are eight inequivalent O sites. In the first O site, O(1,7,19) is bonded in a bent 120 degrees geometry to one Y(1) and one C(21) atom. In the second O site, O(2,8,14,20) is bonded in a distorted linear geometry to one Y(2,4) and one C(9,51) atom. In the third O site, O(3,9,15,21) is bonded in a bent 150 degrees geometry to one Y(1) and one C(16,37) atom. In the fourth O site, O(4,10,16,22) is bonded in a distorted bent 150 degrees geometry to one Y(3) and one C(9,51) atom. In the fifth O site, O(5) is bonded in a linear geometry to one Y(1) and one C(63) atom. In the sixth O site, O(6,12,18,24) is bonded in a distorted bent 120 degrees geometry to one Y(3) and one C(16,37) atom. In the seventh O site, O(11,17,23) is bonded in a linear geometry to one Y(2,4) and one C(42,84) atom. In the eighth O site, O(13) is bonded in a bent 120 degrees geometry to one Y(3) and one C(63) atom. Linkers: 6 [O]C(=O)c1ccc(-c2ccc(C([O])=O)cc2)cc1. Metal clusters: 4 [Y]. The MOF has largest included sphere 10.69 A, density 0.78 g/cm3, surface area 4250.34 m2/g, accessible volume 0.84 cm3/g