SrU2As2(HO2)6H2 crystallizes in the monoclinic Pc space group. The structure consists of four 1333-74-0 atoms inside a SrU2As2(HO2)6 framework. In the SrU2As2(HO2)6 framework, Sr(1) is bonded in a 10-coordinate geometry to one H(1), one H(2), one H(3), one H(5), one H(6), one H(7), one O(12), one O(2), one O(4), and one O(8) atom. There are two inequivalent U sites. In the first U site, U(1) is bonded to one O(2), one O(4), one O(5), one O(6), one O(7), and one O(9) atom to form UO6 octahedra that share corners with two equivalent As(1)O4 tetrahedra and corners with two equivalent As(2)O4 tetrahedra. In the second U site, U(2) is bonded to one O(1), one O(10), one O(11), one O(12), one O(3), and one O(8) atom to form distorted UO6 octahedra that share corners with two equivalent As(1)O4 tetrahedra and corners with two equivalent As(2)O4 tetrahedra. There are two inequivalent As sites. In the first As site, As(1) is bonded to one O(10), one O(6), one O(8), and one O(9) atom to form AsO4 tetrahedra that share corners with two equivalent U(1)O6 octahedra and corners with two equivalent U(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 31-53°. In the second As site, As(2) is bonded to one O(1), one O(3), one O(4), and one O(7) atom to form AsO4 tetrahedra that share corners with two equivalent U(1)O6 octahedra and corners with two equivalent U(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 31-53°. There are six inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one Sr(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one Sr(1) atom. In the third H site, H(3) is bonded in a distorted single-bond geometry to one Sr(1) atom. In the fourth H site, H(5) is bonded in a distorted single-bond geometry to one Sr(1) atom. In the fifth H site, H(6) is bonded in a single-bond geometry to one Sr(1) atom. In the sixth H site, H(7) is bonded in a single-bond geometry to one Sr(1) atom. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one U(2) and one As(2) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Sr(1) and one U(1) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one U(2) and one As(2) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Sr(1), one U(1), and one As(2) atom. In the fifth O site, O(5) is bonded in a single-bond geometry to one U(1) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one U(1) and one As(1) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one U(1) and one As(2) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Sr(1), one U(2), and one As(1) atom. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one U(1) and one As(1) atom. In the tenth O site, O(10) is bonded in a bent 150 degrees geometry to one U(2) and one As(1) atom. In the eleventh O site, O(11) is bonded in a single-bond geometry to one U(2) atom. In the twelfth O site, O(12) is bonded in a bent 120 degrees geometry to one Sr(1) and one U(2) atom.
SrU2As2(HO2)6H2 crystallizes in the monoclinic Pc space group. The structure consists of four 1333-74-0 atoms inside a SrU2As2(HO2)6 framework. In the SrU2As2(HO2)6 framework, Sr(1) is bonded in a 10-coordinate geometry to one H(1), one H(2), one H(3), one H(5), one H(6), one H(7), one O(12), one O(2), one O(4), and one O(8) atom. The Sr(1)-H(1) bond length is 2.78 Å. The Sr(1)-H(2) bond length is 2.74 Å. The Sr(1)-H(3) bond length is 2.78 Å. The Sr(1)-H(5) bond length is 2.71 Å. The Sr(1)-H(6) bond length is 2.75 Å. The Sr(1)-H(7) bond length is 2.69 Å. The Sr(1)-O(12) bond length is 2.50 Å. The Sr(1)-O(2) bond length is 2.49 Å. The Sr(1)-O(4) bond length is 2.67 Å. The Sr(1)-O(8) bond length is 2.66 Å. There are two inequivalent U sites. In the first U site, U(1) is bonded to one O(2), one O(4), one O(5), one O(6), one O(7), and one O(9) atom to form UO6 octahedra that share corners with two equivalent As(1)O4 tetrahedra and corners with two equivalent As(2)O4 tetrahedra. The U(1)-O(2) bond length is 1.86 Å. The U(1)-O(4) bond length is 2.37 Å. The U(1)-O(5) bond length is 1.82 Å. The U(1)-O(6) bond length is 2.25 Å. The U(1)-O(7) bond length is 2.26 Å. The U(1)-O(9) bond length is 2.27 Å. In the second U site, U(2) is bonded to one O(1), one O(10), one O(11), one O(12), one O(3), and one O(8) atom to form distorted UO6 octahedra that share corners with two equivalent As(1)O4 tetrahedra and corners with two equivalent As(2)O4 tetrahedra. The U(2)-O(1) bond length is 2.28 Å. The U(2)-O(10) bond length is 2.26 Å. The U(2)-O(11) bond length is 1.82 Å. The U(2)-O(12) bond length is 1.86 Å. The U(2)-O(3) bond length is 2.24 Å. The U(2)-O(8) bond length is 2.37 Å. There are two inequivalent As sites. In the first As site, As(1) is bonded to one O(10), one O(6), one O(8), and one O(9) atom to form AsO4 tetrahedra that share corners with two equivalent U(1)O6 octahedra and corners with two equivalent U(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 31-53°. The As(1)-O(10) bond length is 1.72 Å. The As(1)-O(6) bond length is 1.71 Å. The As(1)-O(8) bond length is 1.74 Å. The As(1)-O(9) bond length is 1.72 Å. In the second As site, As(2) is bonded to one O(1), one O(3), one O(4), and one O(7) atom to form AsO4 tetrahedra that share corners with two equivalent U(1)O6 octahedra and corners with two equivalent U(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 31-53°. The As(2)-O(1) bond length is 1.72 Å. The As(2)-O(3) bond length is 1.71 Å. The As(2)-O(4) bond length is 1.74 Å. The As(2)-O(7) bond length is 1.72 Å. There are six inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one Sr(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one Sr(1) atom. In the third H site, H(3) is bonded in a distorted single-bond geometry to one Sr(1) atom. In the fourth H site, H(5) is bonded in a distorted single-bond geometry to one Sr(1) atom. In the fifth H site, H(6) is bonded in a single-bond geometry to one Sr(1) atom. In the sixth H site, H(7) is bonded in a single-bond geometry to one Sr(1) atom. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one U(2) and one As(2) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Sr(1) and one U(1) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one U(2) and one As(2) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Sr(1), one U(1), and one As(2) atom. In the fifth O site, O(5) is bonded in a single-bond geometry to one U(1) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one U(1) and one As(1) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one U(1) and one As(2) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Sr(1), one U(2), and one As(1) atom. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one U(1) and one As(1) atom. In the tenth O site, O(10) is bonded in a bent 150 degrees geometry to one U(2) and one As(1) atom. In the eleventh O site, O(11) is bonded in a single-bond geometry to one U(2) atom. In the twelfth O site, O(12) is bonded in a bent 120 degrees geometry to one Sr(1) and one U(2) atom.