(Ca3As2O17)2O2 crystallizes in the triclinic P-1 space group. The structure consists of one 7782-44-7 molecule inside a Ca3As2O17 framework. In the Ca3As2O17 framework, there are three inequivalent Ca sites. In the first Ca site, Ca(1) is bonded in a 7-coordinate geometry to one O(10), one O(11), one O(5), one O(6), one O(7), one O(8), and one O(9) atom. In the second Ca site, Ca(2) is bonded in a 7-coordinate geometry to one O(1), one O(11), one O(12), one O(13), one O(3), one O(5), and one O(6) atom. In the third Ca site, Ca(3) is bonded in a 6-coordinate geometry to one O(12), one O(13), one O(15), one O(16), one O(2), and one O(7) atom. There are two inequivalent As sites. In the first As site, As(1) is bonded in a distorted tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. In the second As site, As(2) is bonded in a tetrahedral geometry to one O(5), one O(6), one O(7), and one O(8) atom. There are seventeen inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Ca(2) and one As(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Ca(3), one As(1), and one O(12) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Ca(2) and one As(1) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one As(1) and one O(9) atom. In the fifth O site, O(5) is bonded in a trigonal non-coplanar geometry to one Ca(1), one Ca(2), and one As(2) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Ca(1), one Ca(2), and one As(2) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Ca(1), one Ca(3), and one As(2) atom. In the eighth O site, O(8) is bonded in a distorted bent 120 degrees geometry to one Ca(1) and one As(2) atom. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one Ca(1) and one O(4) atom. In the tenth O site, O(10) is bonded in a distorted bent 120 degrees geometry to one Ca(1) and one O(18) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal non-coplanar geometry to one Ca(1), one Ca(2), and one O(18) atom. In the twelfth O site, O(12) is bonded in a 3-coordinate geometry to one Ca(2), one Ca(3), and one O(2) atom. In the thirteenth O site, O(13) is bonded in a bent 120 degrees geometry to one Ca(2) and one Ca(3) atom. In the fourteenth O site, O(15) is bonded in a bent 150 degrees geometry to one Ca(3) and one O(17) atom. In the fifteenth O site, O(16) is bonded in a bent 120 degrees geometry to one Ca(3) and one O(17) atom. In the sixteenth O site, O(17) is bonded in a bent 120 degrees geometry to one O(15) and one O(16) atom. In the seventeenth O site, O(18) is bonded in a bent 120 degrees geometry to one O(10) and one O(11) atom.
(Ca3As2O17)2O2 crystallizes in the triclinic P-1 space group. The structure consists of one 7782-44-7 molecule inside a Ca3As2O17 framework. In the Ca3As2O17 framework, there are three inequivalent Ca sites. In the first Ca site, Ca(1) is bonded in a 7-coordinate geometry to one O(10), one O(11), one O(5), one O(6), one O(7), one O(8), and one O(9) atom. The Ca(1)-O(10) bond length is 2.75 Å. The Ca(1)-O(11) bond length is 2.46 Å. The Ca(1)-O(5) bond length is 2.35 Å. The Ca(1)-O(6) bond length is 2.40 Å. The Ca(1)-O(7) bond length is 2.47 Å. The Ca(1)-O(8) bond length is 2.32 Å. The Ca(1)-O(9) bond length is 2.58 Å. In the second Ca site, Ca(2) is bonded in a 7-coordinate geometry to one O(1), one O(11), one O(12), one O(13), one O(3), one O(5), and one O(6) atom. The Ca(2)-O(1) bond length is 2.32 Å. The Ca(2)-O(11) bond length is 2.95 Å. The Ca(2)-O(12) bond length is 2.67 Å. The Ca(2)-O(13) bond length is 2.40 Å. The Ca(2)-O(3) bond length is 2.71 Å. The Ca(2)-O(5) bond length is 2.37 Å. The Ca(2)-O(6) bond length is 2.31 Å. In the third Ca site, Ca(3) is bonded in a 6-coordinate geometry to one O(12), one O(13), one O(15), one O(16), one O(2), and one O(7) atom. The Ca(3)-O(12) bond length is 2.37 Å. The Ca(3)-O(13) bond length is 2.32 Å. The Ca(3)-O(15) bond length is 2.56 Å. The Ca(3)-O(16) bond length is 2.51 Å. The Ca(3)-O(2) bond length is 2.78 Å. The Ca(3)-O(7) bond length is 2.25 Å. There are two inequivalent As sites. In the first As site, As(1) is bonded in a distorted tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. The As(1)-O(1) bond length is 1.67 Å. The As(1)-O(2) bond length is 1.91 Å. The As(1)-O(3) bond length is 1.66 Å. The As(1)-O(4) bond length is 1.97 Å. In the second As site, As(2) is bonded in a tetrahedral geometry to one O(5), one O(6), one O(7), and one O(8) atom. The As(2)-O(5) bond length is 1.71 Å. The As(2)-O(6) bond length is 1.74 Å. The As(2)-O(7) bond length is 1.73 Å. The As(2)-O(8) bond length is 1.71 Å. There are seventeen inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Ca(2) and one As(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Ca(3), one As(1), and one O(12) atom. The O(2)-O(12) bond length is 1.42 Å. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Ca(2) and one As(1) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one As(1) and one O(9) atom. The O(4)-O(9) bond length is 1.31 Å. In the fifth O site, O(5) is bonded in a trigonal non-coplanar geometry to one Ca(1), one Ca(2), and one As(2) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Ca(1), one Ca(2), and one As(2) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Ca(1), one Ca(3), and one As(2) atom. In the eighth O site, O(8) is bonded in a distorted bent 120 degrees geometry to one Ca(1) and one As(2) atom. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one Ca(1) and one O(4) atom. In the tenth O site, O(10) is bonded in a distorted bent 120 degrees geometry to one Ca(1) and one O(18) atom. The O(10)-O(18) bond length is 1.30 Å. In the eleventh O site, O(11) is bonded in a distorted trigonal non-coplanar geometry to one Ca(1), one Ca(2), and one O(18) atom. The O(11)-O(18) bond length is 1.34 Å. In the twelfth O site, O(12) is bonded in a 3-coordinate geometry to one Ca(2), one Ca(3), and one O(2) atom. In the thirteenth O site, O(13) is bonded in a bent 120 degrees geometry to one Ca(2) and one Ca(3) atom. In the fourteenth O site, O(15) is bonded in a bent 150 degrees geometry to one Ca(3) and one O(17) atom. The O(15)-O(17) bond length is 1.31 Å. In the fifteenth O site, O(16) is bonded in a bent 120 degrees geometry to one Ca(3) and one O(17) atom. The O(16)-O(17) bond length is 1.33 Å. In the sixteenth O site, O(17) is bonded in a bent 120 degrees geometry to one O(15) and one O(16) atom. In the seventeenth O site, O(18) is bonded in a bent 120 degrees geometry to one O(10) and one O(11) atom.