NaMnBO3 crystallizes in the triclinic P1 space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a 8-coordinate geometry to one O(5), one O(6), two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms. In the second Na site, Na(2) is bonded in a 8-coordinate geometry to one O(3), one O(4), two equivalent O(2), two equivalent O(5), and two equivalent O(6) atoms. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form face-sharing MnO6 octahedra. In the second Mn site, Mn(2) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form face-sharing MnO6 octahedra. There are two inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to one O(1), one O(3), and one O(4) atom. In the second B site, B(2) is bonded in a trigonal planar geometry to one O(2), 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 5-coordinate geometry to two equivalent Na(1), one Mn(1), one Mn(2), and one B(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to two equivalent Na(2), one Mn(1), one Mn(2), and one B(2) atom. In the third O site, O(3) is bonded in a 1-coordinate geometry to one Na(2), two equivalent Na(1), one Mn(1), one Mn(2), and one B(1) atom. In the fourth O site, O(4) is bonded in a 1-coordinate geometry to one Na(2), two equivalent Na(1), one Mn(1), one Mn(2), and one B(1) atom. In the fifth O site, O(5) is bonded in a 1-coordinate geometry to one Na(1), two equivalent Na(2), one Mn(1), one Mn(2), and one B(2) atom. In the sixth O site, O(6) is bonded in a 1-coordinate geometry to one Na(1), two equivalent Na(2), one Mn(1), one Mn(2), and one B(2) atom.
NaMnBO3 crystallizes in the triclinic P1 space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a 8-coordinate geometry to one O(5), one O(6), two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms. The Na(1)-O(5) bond length is 2.80 Å. The Na(1)-O(6) bond length is 2.81 Å. There is one shorter (2.57 Å) and one longer (2.61 Å) Na(1)-O(1) bond length. There is one shorter (2.62 Å) and one longer (2.64 Å) Na(1)-O(3) bond length. There is one shorter (2.61 Å) and one longer (2.64 Å) Na(1)-O(4) bond length. In the second Na site, Na(2) is bonded in a 8-coordinate geometry to one O(3), one O(4), two equivalent O(2), two equivalent O(5), and two equivalent O(6) atoms. The Na(2)-O(3) bond length is 2.78 Å. The Na(2)-O(4) bond length is 2.82 Å. There is one shorter (2.56 Å) and one longer (2.62 Å) Na(2)-O(2) bond length. There is one shorter (2.61 Å) and one longer (2.64 Å) Na(2)-O(5) bond length. There is one shorter (2.59 Å) and one longer (2.66 Å) Na(2)-O(6) bond length. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form face-sharing MnO6 octahedra. The Mn(1)-O(1) bond length is 2.19 Å. The Mn(1)-O(2) bond length is 2.20 Å. The Mn(1)-O(3) bond length is 2.19 Å. The Mn(1)-O(4) bond length is 2.24 Å. The Mn(1)-O(5) bond length is 2.24 Å. The Mn(1)-O(6) bond length is 2.19 Å. In the second Mn site, Mn(2) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form face-sharing MnO6 octahedra. The Mn(2)-O(1) bond length is 2.19 Å. The Mn(2)-O(2) bond length is 2.20 Å. The Mn(2)-O(3) bond length is 2.24 Å. The Mn(2)-O(4) bond length is 2.20 Å. The Mn(2)-O(5) bond length is 2.19 Å. The Mn(2)-O(6) bond length is 2.23 Å. There are two inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to one O(1), one O(3), and one O(4) atom. The B(1)-O(1) bond length is 1.39 Å. The B(1)-O(3) bond length is 1.39 Å. The B(1)-O(4) bond length is 1.39 Å. In the second B site, B(2) is bonded in a trigonal planar geometry to one O(2), one O(5), and one O(6) atom. The B(2)-O(2) bond length is 1.39 Å. The B(2)-O(5) bond length is 1.39 Å. The B(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 5-coordinate geometry to two equivalent Na(1), one Mn(1), one Mn(2), and one B(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to two equivalent Na(2), one Mn(1), one Mn(2), and one B(2) atom. In the third O site, O(3) is bonded in a 1-coordinate geometry to one Na(2), two equivalent Na(1), one Mn(1), one Mn(2), and one B(1) atom. In the fourth O site, O(4) is bonded in a 1-coordinate geometry to one Na(2), two equivalent Na(1), one Mn(1), one Mn(2), and one B(1) atom. In the fifth O site, O(5) is bonded in a 1-coordinate geometry to one Na(1), two equivalent Na(2), one Mn(1), one Mn(2), and one B(2) atom. In the sixth O site, O(6) is bonded in a 1-coordinate geometry to one Na(1), two equivalent Na(2), one Mn(1), one Mn(2), and one B(2) atom.