V(CO3)2 crystallizes in the orthorhombic Pna2_1 space group. V(1) is bonded to one O(2), one O(3), one O(4), one O(5), and two equivalent O(1) atoms to form distorted corner-sharing VO6 octahedra. The corner-sharing octahedral tilt angles are 15°. There are two inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one O(2), one O(4), and one O(6) atom. In the second C site, C(2) is bonded in a trigonal planar geometry to one O(3), one O(5), and one O(6) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to two equivalent V(1) atoms. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one V(1) and one C(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one V(1) and one C(2) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one V(1) and one C(1) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one V(1) and one C(2) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one C(1) and one C(2) atom.
V(CO3)2 crystallizes in the orthorhombic Pna2_1 space group. V(1) is bonded to one O(2), one O(3), one O(4), one O(5), and two equivalent O(1) atoms to form distorted corner-sharing VO6 octahedra. The corner-sharing octahedral tilt angles are 15°. The V(1)-O(2) bond length is 2.05 Å. The V(1)-O(3) bond length is 1.98 Å. The V(1)-O(4) bond length is 2.01 Å. The V(1)-O(5) bond length is 1.99 Å. There is one shorter (1.67 Å) and one longer (2.17 Å) V(1)-O(1) bond length. There are two inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one O(2), one O(4), and one O(6) atom. The C(1)-O(2) bond length is 1.24 Å. The C(1)-O(4) bond length is 1.27 Å. The C(1)-O(6) bond length is 1.41 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one O(3), one O(5), and one O(6) atom. The C(2)-O(3) bond length is 1.26 Å. The C(2)-O(5) bond length is 1.25 Å. The C(2)-O(6) bond length is 1.39 Å. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to two equivalent V(1) atoms. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one V(1) and one C(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one V(1) and one C(2) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one V(1) and one C(1) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one V(1) and one C(2) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one C(1) and one C(2) atom.