ScBaNa(BO3)2 crystallizes in the trigonal R-3 space group. Na(1) is bonded in a 7-coordinate geometry to one B(1) and six equivalent O(1) atoms. Ba(1) is bonded in a 9-coordinate geometry to three equivalent O(1) and six equivalent O(2) atoms. There are two inequivalent Sc sites. In the first Sc site, Sc(1) is bonded in an octahedral geometry to six equivalent O(1) atoms. In the second Sc site, Sc(2) is bonded in an octahedral geometry to six equivalent O(2) atoms. There are two inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to one Na(1) and three equivalent O(1) atoms. In the second B site, B(2) is bonded in a trigonal planar geometry to three equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(2) is bonded in a 2-coordinate geometry to two equivalent Ba(1), one Sc(2), and one B(2) atom. In the second O site, O(1) is bonded in a 1-coordinate geometry to two equivalent Na(1), one Ba(1), one Sc(1), and one B(1) atom.
ScBaNa(BO3)2 crystallizes in the trigonal R-3 space group. Na(1) is bonded in a 7-coordinate geometry to one B(1) and six equivalent O(1) atoms. The Na(1)-B(1) bond length is 2.91 Å. There are three shorter (2.48 Å) and three longer (2.86 Å) Na(1)-O(1) bond lengths. Ba(1) is bonded in a 9-coordinate geometry to three equivalent O(1) and six equivalent O(2) atoms. All Ba(1)-O(1) bond lengths are 2.85 Å. All Ba(1)-O(2) bond lengths are 2.81 Å. There are two inequivalent Sc sites. In the first Sc site, Sc(1) is bonded in an octahedral geometry to six equivalent O(1) atoms. All Sc(1)-O(1) bond lengths are 2.13 Å. In the second Sc site, Sc(2) is bonded in an octahedral geometry to six equivalent O(2) atoms. All Sc(2)-O(2) bond lengths are 2.11 Å. There are two inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to one Na(1) and three equivalent O(1) atoms. All B(1)-O(1) bond lengths are 1.39 Å. In the second B site, B(2) is bonded in a trigonal planar geometry to three equivalent O(2) atoms. All B(2)-O(2) bond lengths are 1.38 Å. There are two inequivalent O sites. In the first O site, O(2) is bonded in a 2-coordinate geometry to two equivalent Ba(1), one Sc(2), and one B(2) atom. In the second O site, O(1) is bonded in a 1-coordinate geometry to two equivalent Na(1), one Ba(1), one Sc(1), and one B(1) atom.