NaPr3Ge4O13 crystallizes in the triclinic P-1 space group. Na(1) is bonded in a 6-coordinate geometry to one O(11), one O(13), one O(6), one O(7), one O(8), and one O(9) atom. There are three inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 7-coordinate geometry to one O(1), one O(11), one O(13), one O(4), one O(7), and two equivalent O(8) atoms. In the second Pr site, Pr(2) is bonded in a 9-coordinate geometry to one O(10), one O(12), one O(13), one O(3), one O(4), one O(5), one O(6), and two equivalent O(2) atoms. In the third Pr site, Pr(3) is bonded in a 8-coordinate geometry to one O(1), one O(11), one O(2), one O(3), one O(4), one O(6), and two equivalent O(12) atoms. There are four inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to one O(13), one O(2), one O(3), and one O(5) atom to form corner-sharing GeO4 tetrahedra. In the second Ge site, Ge(2) is bonded to one O(1), one O(10), one O(8), and one O(9) atom to form corner-sharing GeO4 tetrahedra. In the third Ge site, Ge(3) is bonded to one O(11), one O(12), one O(4), and one O(5) atom to form corner-sharing GeO4 tetrahedra. In the fourth Ge site, Ge(4) is bonded to one O(10), one O(6), one O(7), and one O(9) atom to form corner-sharing GeO4 tetrahedra. There are thirteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Pr(1), one Pr(3), and one Ge(2) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Pr(3), two equivalent Pr(2), and one Ge(1) atom. In the third O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to one Pr(2), one Pr(3), and one Ge(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Pr(1), one Pr(2), one Pr(3), and one Ge(3) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Pr(2), one Ge(1), and one Ge(3) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Na(1), one Pr(2), one Pr(3), and one Ge(4) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Na(1), one Pr(1), and one Ge(4) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Na(1), two equivalent Pr(1), and one Ge(2) atom. In the ninth O site, O(9) is bonded in a distorted trigonal planar geometry to one Na(1), one Ge(2), and one Ge(4) atom. In the tenth O site, O(10) is bonded in a distorted bent 120 degrees geometry to one Pr(2), one Ge(2), and one Ge(4) atom. In the eleventh O site, O(11) is bonded to one Na(1), one Pr(1), one Pr(3), and one Ge(3) atom to form distorted corner-sharing ONaPr2Ge trigonal pyramids. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to one Pr(2), two equivalent Pr(3), and one Ge(3) atom. In the thirteenth O site, O(13) is bonded to one Na(1), one Pr(1), one Pr(2), and one Ge(1) atom to form distorted corner-sharing ONaPr2Ge tetrahedra.
NaPr3Ge4O13 crystallizes in the triclinic P-1 space group. Na(1) is bonded in a 6-coordinate geometry to one O(11), one O(13), one O(6), one O(7), one O(8), and one O(9) atom. The Na(1)-O(11) bond length is 2.61 Å. The Na(1)-O(13) bond length is 2.37 Å. The Na(1)-O(6) bond length is 2.64 Å. The Na(1)-O(7) bond length is 2.36 Å. The Na(1)-O(8) bond length is 2.86 Å. The Na(1)-O(9) bond length is 2.40 Å. There are three inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 7-coordinate geometry to one O(1), one O(11), one O(13), one O(4), one O(7), and two equivalent O(8) atoms. The Pr(1)-O(1) bond length is 2.49 Å. The Pr(1)-O(11) bond length is 2.53 Å. The Pr(1)-O(13) bond length is 2.48 Å. The Pr(1)-O(4) bond length is 2.65 Å. The Pr(1)-O(7) bond length is 2.29 Å. There is one shorter (2.44 Å) and one longer (2.45 Å) Pr(1)-O(8) bond length. In the second Pr site, Pr(2) is bonded in a 9-coordinate geometry to one O(10), one O(12), one O(13), one O(3), one O(4), one O(5), one O(6), and two equivalent O(2) atoms. The Pr(2)-O(10) bond length is 2.65 Å. The Pr(2)-O(12) bond length is 2.59 Å. The Pr(2)-O(13) bond length is 2.47 Å. The Pr(2)-O(3) bond length is 2.41 Å. The Pr(2)-O(4) bond length is 2.56 Å. The Pr(2)-O(5) bond length is 2.97 Å. The Pr(2)-O(6) bond length is 2.59 Å. There is one shorter (2.43 Å) and one longer (3.07 Å) Pr(2)-O(2) bond length. In the third Pr site, Pr(3) is bonded in a 8-coordinate geometry to one O(1), one O(11), one O(2), one O(3), one O(4), one O(6), and two equivalent O(12) atoms. The Pr(3)-O(1) bond length is 2.48 Å. The Pr(3)-O(11) bond length is 2.46 Å. The Pr(3)-O(2) bond length is 2.54 Å. The Pr(3)-O(3) bond length is 2.40 Å. The Pr(3)-O(4) bond length is 2.56 Å. The Pr(3)-O(6) bond length is 2.68 Å. There is one shorter (2.60 Å) and one longer (2.67 Å) Pr(3)-O(12) bond length. There are four inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to one O(13), one O(2), one O(3), and one O(5) atom to form corner-sharing GeO4 tetrahedra. The Ge(1)-O(13) bond length is 1.76 Å. The Ge(1)-O(2) bond length is 1.77 Å. The Ge(1)-O(3) bond length is 1.75 Å. The Ge(1)-O(5) bond length is 1.81 Å. In the second Ge site, Ge(2) is bonded to one O(1), one O(10), one O(8), and one O(9) atom to form corner-sharing GeO4 tetrahedra. The Ge(2)-O(1) bond length is 1.74 Å. The Ge(2)-O(10) bond length is 1.82 Å. The Ge(2)-O(8) bond length is 1.75 Å. The Ge(2)-O(9) bond length is 1.81 Å. In the third Ge site, Ge(3) is bonded to one O(11), one O(12), one O(4), and one O(5) atom to form corner-sharing GeO4 tetrahedra. The Ge(3)-O(11) bond length is 1.77 Å. The Ge(3)-O(12) bond length is 1.78 Å. The Ge(3)-O(4) bond length is 1.79 Å. The Ge(3)-O(5) bond length is 1.81 Å. In the fourth Ge site, Ge(4) is bonded to one O(10), one O(6), one O(7), and one O(9) atom to form corner-sharing GeO4 tetrahedra. The Ge(4)-O(10) bond length is 1.83 Å. The Ge(4)-O(6) bond length is 1.75 Å. The Ge(4)-O(7) bond length is 1.72 Å. The Ge(4)-O(9) bond length is 1.80 Å. There are thirteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Pr(1), one Pr(3), and one Ge(2) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Pr(3), two equivalent Pr(2), and one Ge(1) atom. In the third O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to one Pr(2), one Pr(3), and one Ge(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Pr(1), one Pr(2), one Pr(3), and one Ge(3) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Pr(2), one Ge(1), and one Ge(3) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Na(1), one Pr(2), one Pr(3), and one Ge(4) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Na(1), one Pr(1), and one Ge(4) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Na(1), two equivalent Pr(1), and one Ge(2) atom. In the ninth O site, O(9) is bonded in a distorted trigonal planar geometry to one Na(1), one Ge(2), and one Ge(4) atom. In the tenth O site, O(10) is bonded in a distorted bent 120 degrees geometry to one Pr(2), one Ge(2), and one Ge(4) atom. In the eleventh O site, O(11) is bonded to one Na(1), one Pr(1), one Pr(3), and one Ge(3) atom to form distorted corner-sharing ONaPr2Ge trigonal pyramids. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to one Pr(2), two equivalent Pr(3), and one Ge(3) atom. In the thirteenth O site, O(13) is bonded to one Na(1), one Pr(1), one Pr(2), and one Ge(1) atom to form distorted corner-sharing ONaPr2Ge tetrahedra.