KLaC4O9O2 crystallizes in the triclinic P-1 space group. The structure consists of two hydrogen peroxide molecules inside a KLaC4O9 framework. In the KLaC4O9 framework, K(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(6), one O(7), one O(8), and one O(9) atom. La(1) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. There are four 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. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one O(2) and one O(4) atom. In the third C site, C(3) is bonded in a distorted bent 120 degrees geometry to one O(5) and one O(6) atom. In the fourth C site, C(4) is bonded in a distorted bent 120 degrees geometry to one O(7) and one O(8) atom. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one K(1), one La(1), and one C(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one K(1), one La(1), and one C(2) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one La(1) and one C(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one La(1) and one C(2) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one La(1) and one C(3) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one K(1), one La(1), and one C(3) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one K(1), one La(1), and one C(4) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one K(1), one La(1), and one C(4) atom. In the ninth O site, O(9) is bonded in a distorted single-bond geometry to one K(1) atom.
KLaC4O9O2 crystallizes in the triclinic P-1 space group. The structure consists of two hydrogen peroxide molecules inside a KLaC4O9 framework. In the KLaC4O9 framework, K(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(6), one O(7), one O(8), and one O(9) atom. The K(1)-O(1) bond length is 3.00 Å. The K(1)-O(2) bond length is 2.77 Å. The K(1)-O(6) bond length is 2.86 Å. The K(1)-O(7) bond length is 2.76 Å. The K(1)-O(8) bond length is 3.13 Å. The K(1)-O(9) bond length is 3.21 Å. La(1) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. The La(1)-O(1) bond length is 2.53 Å. The La(1)-O(2) bond length is 2.59 Å. The La(1)-O(3) bond length is 2.60 Å. The La(1)-O(4) bond length is 2.54 Å. The La(1)-O(5) bond length is 2.51 Å. The La(1)-O(6) bond length is 2.53 Å. The La(1)-O(7) bond length is 2.53 Å. The La(1)-O(8) bond length is 2.54 Å. There are four 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 1.26 Å. The C(1)-O(3) bond length is 1.26 Å. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one O(2) and one O(4) atom. The C(2)-O(2) bond length is 1.27 Å. The C(2)-O(4) bond length is 1.26 Å. In the third C site, C(3) is bonded in a distorted bent 120 degrees geometry to one O(5) and one O(6) atom. The C(3)-O(5) bond length is 1.26 Å. The C(3)-O(6) bond length is 1.27 Å. In the fourth C site, C(4) is bonded in a distorted bent 120 degrees geometry to one O(7) and one O(8) atom. The C(4)-O(7) bond length is 1.26 Å. The C(4)-O(8) bond length is 1.27 Å. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one K(1), one La(1), and one C(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one K(1), one La(1), and one C(2) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one La(1) and one C(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one La(1) and one C(2) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one La(1) and one C(3) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one K(1), one La(1), and one C(3) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one K(1), one La(1), and one C(4) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one K(1), one La(1), and one C(4) atom. In the ninth O site, O(9) is bonded in a distorted single-bond geometry to one K(1) atom.