MnCO3 crystallizes in the monoclinic Cc space group. Mn(1) is bonded in a 5-coordinate geometry to one O(2), two equivalent O(1), and two equivalent O(3) atoms. C(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Mn(1) and one C(1) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Mn(1) and one C(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Mn(1) and one C(1) atom.
MnCO3 crystallizes in the monoclinic Cc space group. Mn(1) is bonded in a 5-coordinate geometry to one O(2), two equivalent O(1), and two equivalent O(3) atoms. The Mn(1)-O(2) bond length is 2.14 Å. There is one shorter (2.20 Å) and one longer (2.29 Å) Mn(1)-O(1) bond length. There is one shorter (2.13 Å) and one longer (2.29 Å) Mn(1)-O(3) bond length. C(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. The C(1)-O(1) bond length is 1.31 Å. The C(1)-O(2) bond length is 1.29 Å. The C(1)-O(3) bond length is 1.29 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Mn(1) and one C(1) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Mn(1) and one C(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Mn(1) and one C(1) atom.