NaIn(C2O5)2 crystallizes in the hexagonal P6_222 space group. Na(1) is bonded in a 8-coordinate geometry to four equivalent O(1) and four equivalent O(2) atoms. In(1) is bonded in a 8-coordinate geometry to four equivalent O(1) and four equivalent O(3) atoms. There are two inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to two equivalent O(3) atoms. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to two equivalent O(1) atoms. There are three inequivalent O sites. In the first O site, O(3) is bonded in a bent 120 degrees geometry to one In(1) and one C(1) atom. In the second O site, O(1) is bonded in a distorted trigonal planar geometry to one Na(1), one In(1), and one C(2) atom. In the third O site, O(2) is bonded in a water-like geometry to two equivalent Na(1) atoms.
NaIn(C2O5)2 crystallizes in the hexagonal P6_222 space group. Na(1) is bonded in a 8-coordinate geometry to four equivalent O(1) and four equivalent O(2) atoms. All Na(1)-O(1) bond lengths are 2.54 Å. All Na(1)-O(2) bond lengths are 2.72 Å. In(1) is bonded in a 8-coordinate geometry to four equivalent O(1) and four equivalent O(3) atoms. All In(1)-O(1) bond lengths are 2.31 Å. All In(1)-O(3) bond lengths are 2.28 Å. There are two inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to two equivalent O(3) atoms. Both C(1)-O(3) bond lengths are 1.27 Å. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to two equivalent O(1) atoms. Both C(2)-O(1) bond lengths are 1.26 Å. There are three inequivalent O sites. In the first O site, O(3) is bonded in a bent 120 degrees geometry to one In(1) and one C(1) atom. In the second O site, O(1) is bonded in a distorted trigonal planar geometry to one Na(1), one In(1), and one C(2) atom. In the third O site, O(2) is bonded in a water-like geometry to two equivalent Na(1) atoms.