BaNd2Ti3O10 crystallizes in the orthorhombic Cmcm space group. Ba(1) is bonded in a 7-coordinate geometry to one O(7) and six equivalent O(2) atoms. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 10-coordinate geometry to two equivalent O(1), two equivalent O(4), two equivalent O(7), and four equivalent O(3) atoms. In the second Nd site, Nd(2) is bonded in a 12-coordinate geometry to two equivalent O(1), two equivalent O(4), two equivalent O(5), two equivalent O(6), and four equivalent O(3) atoms. There are two inequivalent Ti sites. In the first Ti site, Ti(1) is bonded in a 6-coordinate geometry to one O(2), one O(3), one O(6), one O(7), and two equivalent O(1) atoms. In the second Ti site, Ti(2) is bonded to two equivalent O(3), two equivalent O(4), and two equivalent O(5) atoms to form corner-sharing TiO6 octahedra. The corner-sharing octahedral tilt angles range from 0-29°. There are seven inequivalent O sites. In the first O site, O(3) is bonded in a 4-coordinate geometry to two equivalent Nd(1), two equivalent Nd(2), one Ti(1), and one Ti(2) atom. In the second O site, O(4) is bonded in a distorted linear geometry to two equivalent Nd(1), two equivalent Nd(2), and two equivalent Ti(2) atoms. In the third O site, O(5) is bonded in a 4-coordinate geometry to two equivalent Nd(2) and two equivalent Ti(2) atoms. In the fourth O site, O(6) is bonded to two equivalent Nd(2) and two equivalent Ti(1) atoms to form distorted ONd2Ti2 tetrahedra that share corners with two equivalent O(2)Ba3Ti tetrahedra, corners with two equivalent O(6)Nd2Ti2 tetrahedra, and edges with four equivalent O(1)Nd2Ti2 trigonal pyramids. In the fifth O site, O(7) is bonded in a distorted linear geometry to one Ba(1), two equivalent Nd(1), and two equivalent Ti(1) atoms. In the sixth O site, O(1) is bonded to one Nd(1), one Nd(2), and two equivalent Ti(1) atoms to form distorted ONd2Ti2 trigonal pyramids that share corners with two equivalent O(2)Ba3Ti tetrahedra, corners with four equivalent O(1)Nd2Ti2 trigonal pyramids, and edges with two equivalent O(6)Nd2Ti2 tetrahedra. In the seventh O site, O(2) is bonded to three equivalent Ba(1) and one Ti(1) atom to form distorted OBa3Ti tetrahedra that share  a cornercorner with one O(6)Nd2Ti2 tetrahedra, corners with nine equivalent O(2)Ba3Ti tetrahedra, corners with two equivalent O(1)Nd2Ti2 trigonal pyramids, and edges with three equivalent O(2)Ba3Ti tetrahedra.
BaNd2Ti3O10 crystallizes in the orthorhombic Cmcm space group. Ba(1) is bonded in a 7-coordinate geometry to one O(7) and six equivalent O(2) atoms. The Ba(1)-O(7) bond length is 3.14 Å. There are two shorter (2.70 Å) and four longer (2.71 Å) Ba(1)-O(2) bond lengths. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 10-coordinate geometry to two equivalent O(1), two equivalent O(4), two equivalent O(7), and four equivalent O(3) atoms. Both Nd(1)-O(1) bond lengths are 2.44 Å. Both Nd(1)-O(4) bond lengths are 2.99 Å. Both Nd(1)-O(7) bond lengths are 2.73 Å. All Nd(1)-O(3) bond lengths are 2.50 Å. In the second Nd site, Nd(2) is bonded in a 12-coordinate geometry to two equivalent O(1), two equivalent O(4), two equivalent O(5), two equivalent O(6), and four equivalent O(3) atoms. Both Nd(2)-O(1) bond lengths are 2.49 Å. Both Nd(2)-O(4) bond lengths are 2.83 Å. Both Nd(2)-O(5) bond lengths are 2.51 Å. Both Nd(2)-O(6) bond lengths are 2.42 Å. All Nd(2)-O(3) bond lengths are 3.07 Å. There are two inequivalent Ti sites. In the first Ti site, Ti(1) is bonded in a 6-coordinate geometry to one O(2), one O(3), one O(6), one O(7), and two equivalent O(1) atoms. The Ti(1)-O(2) bond length is 1.77 Å. The Ti(1)-O(3) bond length is 2.31 Å. The Ti(1)-O(6) bond length is 2.00 Å. The Ti(1)-O(7) bond length is 1.96 Å. Both Ti(1)-O(1) bond lengths are 2.01 Å. In the second Ti site, Ti(2) is bonded to two equivalent O(3), two equivalent O(4), and two equivalent O(5) atoms to form corner-sharing TiO6 octahedra. The corner-sharing octahedral tilt angles range from 0-29°. Both Ti(2)-O(3) bond lengths are 1.94 Å. Both Ti(2)-O(4) bond lengths are 1.96 Å. Both Ti(2)-O(5) bond lengths are 1.99 Å. There are seven inequivalent O sites. In the first O site, O(3) is bonded in a 4-coordinate geometry to two equivalent Nd(1), two equivalent Nd(2), one Ti(1), and one Ti(2) atom. In the second O site, O(4) is bonded in a distorted linear geometry to two equivalent Nd(1), two equivalent Nd(2), and two equivalent Ti(2) atoms. In the third O site, O(5) is bonded in a 4-coordinate geometry to two equivalent Nd(2) and two equivalent Ti(2) atoms. In the fourth O site, O(6) is bonded to two equivalent Nd(2) and two equivalent Ti(1) atoms to form distorted ONd2Ti2 tetrahedra that share corners with two equivalent O(2)Ba3Ti tetrahedra, corners with two equivalent O(6)Nd2Ti2 tetrahedra, and edges with four equivalent O(1)Nd2Ti2 trigonal pyramids. In the fifth O site, O(7) is bonded in a distorted linear geometry to one Ba(1), two equivalent Nd(1), and two equivalent Ti(1) atoms. In the sixth O site, O(1) is bonded to one Nd(1), one Nd(2), and two equivalent Ti(1) atoms to form distorted ONd2Ti2 trigonal pyramids that share corners with two equivalent O(2)Ba3Ti tetrahedra, corners with four equivalent O(1)Nd2Ti2 trigonal pyramids, and edges with two equivalent O(6)Nd2Ti2 tetrahedra. In the seventh O site, O(2) is bonded to three equivalent Ba(1) and one Ti(1) atom to form distorted OBa3Ti tetrahedra that share  a cornercorner with one O(6)Nd2Ti2 tetrahedra, corners with nine equivalent O(2)Ba3Ti tetrahedra, corners with two equivalent O(1)Nd2Ti2 trigonal pyramids, and edges with three equivalent O(2)Ba3Ti tetrahedra.