LaKOCO3 crystallizes in the orthorhombic Pmmn space group. K(1) is bonded in a 9-coordinate geometry to four equivalent O(3) and five equivalent O(1) atoms. La(1) is bonded in a 8-coordinate geometry to four equivalent O(2) and four equivalent O(3) atoms. C(1) is bonded in a trigonal planar geometry to one O(1) and two equivalent O(3) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 1-coordinate geometry to five equivalent K(1) and one C(1) atom. In the second O site, O(2) is bonded to four equivalent La(1) atoms to form a mixture of corner and edge-sharing OLa4 tetrahedra. In the third O site, O(3) is bonded in a distorted single-bond geometry to two equivalent K(1), two equivalent La(1), and one C(1) atom.
LaKOCO3 crystallizes in the orthorhombic Pmmn space group. K(1) is bonded in a 9-coordinate geometry to four equivalent O(3) and five equivalent O(1) atoms. All K(1)-O(3) bond lengths are 2.98 Å. There is one shorter (2.61 Å) and four longer (3.01 Å) K(1)-O(1) bond lengths. La(1) is bonded in a 8-coordinate geometry to four equivalent O(2) and four equivalent O(3) atoms. There are two shorter (2.29 Å) and two longer (2.59 Å) La(1)-O(2) bond lengths. All La(1)-O(3) bond lengths are 2.77 Å. C(1) is bonded in a trigonal planar geometry to one O(1) and two equivalent O(3) atoms. The C(1)-O(1) bond length is 1.31 Å. Both C(1)-O(3) bond lengths are 1.30 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 1-coordinate geometry to five equivalent K(1) and one C(1) atom. In the second O site, O(2) is bonded to four equivalent La(1) atoms to form a mixture of corner and edge-sharing OLa4 tetrahedra. In the third O site, O(3) is bonded in a distorted single-bond geometry to two equivalent K(1), two equivalent La(1), and one C(1) atom.