The crystal structure described by 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. is represented by the CIF file [CIF]
data_NaPr3Ge4O13
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.948
_cell_length_b   7.201
_cell_length_c   12.045
_cell_angle_alpha   102.293
_cell_angle_beta   98.584
_cell_angle_gamma   91.612
_symmetry_Int_Tables_number   1
_cell_volume   581.116
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Na  Na0  1  0.123  0.807  0.349  1.0
  Na  Na1  1  0.877  0.193  0.651  1.0
  Pr  Pr2  1  0.947  0.676  0.646  1.0
  Pr  Pr3  1  0.053  0.324  0.354  1.0
  Pr  Pr4  1  0.726  0.912  0.135  1.0
  Pr  Pr5  1  0.274  0.088  0.865  1.0
  Pr  Pr6  1  0.554  0.537  0.835  1.0
  Pr  Pr7  1  0.446  0.463  0.165  1.0
  Ge  Ge8  1  0.229  0.940  0.121  1.0
  Ge  Ge9  1  0.771  0.060  0.879  1.0
  Ge  Ge10  1  0.406  0.722  0.567  1.0
  Ge  Ge11  1  0.594  0.278  0.433  1.0
  Ge  Ge12  1  0.116  0.601  0.898  1.0
  Ge  Ge13  1  0.884  0.399  0.102  1.0
  Ge  Ge14  1  0.690  0.844  0.405  1.0
  Ge  Ge15  1  0.310  0.156  0.595  1.0
  O  O16  1  0.592  0.647  0.658  1.0
  O  O17  1  0.408  0.353  0.342  1.0
  O  O18  1  0.644  0.885  0.929  1.0
  O  O19  1  0.356  0.115  0.071  1.0
  O  O20  1  0.411  0.792  0.159  1.0
  O  O21  1  0.589  0.208  0.841  1.0
  O  O22  1  0.247  0.723  0.815  1.0
  O  O23  1  0.753  0.277  0.185  1.0
  O  O24  1  0.052  0.793  0.007  1.0
  O  O25  1  0.948  0.207  0.993  1.0
  O  O26  1  0.751  0.695  0.282  1.0
  O  O27  1  0.249  0.305  0.718  1.0
  O  O28  1  0.852  0.885  0.532  1.0
  O  O29  1  0.148  0.115  0.468  1.0
  O  O30  1  0.187  0.582  0.519  1.0
  O  O31  1  0.813  0.418  0.481  1.0
  O  O32  1  0.453  0.781  0.435  1.0
  O  O33  1  0.547  0.219  0.565  1.0
  O  O34  1  0.325  0.939  0.651  1.0
  O  O35  1  0.675  0.061  0.349  1.0
  O  O36  1  0.896  0.511  0.805  1.0
  O  O37  1  0.104  0.489  0.195  1.0
  O  O38  1  0.717  0.551  0.046  1.0
  O  O39  1  0.283  0.449  0.954  1.0
  O  O40  1  0.931  0.987  0.780  1.0
  O  O41  1  0.069  0.013  0.220  1.0
[/CIF]
.
The crystal structure described by 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. is represented by the CIF file [CIF]
data_NaPr3Ge4O13
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.948
_cell_length_b   7.201
_cell_length_c   12.045
_cell_angle_alpha   102.293
_cell_angle_beta   98.584
_cell_angle_gamma   91.612
_symmetry_Int_Tables_number   1
_cell_volume   581.116
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Na  Na0  1  0.123  0.807  0.349  1.0
  Na  Na1  1  0.877  0.193  0.651  1.0
  Pr  Pr2  1  0.947  0.676  0.646  1.0
  Pr  Pr3  1  0.053  0.324  0.354  1.0
  Pr  Pr4  1  0.726  0.912  0.135  1.0
  Pr  Pr5  1  0.274  0.088  0.865  1.0
  Pr  Pr6  1  0.554  0.537  0.835  1.0
  Pr  Pr7  1  0.446  0.463  0.165  1.0
  Ge  Ge8  1  0.229  0.940  0.121  1.0
  Ge  Ge9  1  0.771  0.060  0.879  1.0
  Ge  Ge10  1  0.406  0.722  0.567  1.0
  Ge  Ge11  1  0.594  0.278  0.433  1.0
  Ge  Ge12  1  0.116  0.601  0.898  1.0
  Ge  Ge13  1  0.884  0.399  0.102  1.0
  Ge  Ge14  1  0.690  0.844  0.405  1.0
  Ge  Ge15  1  0.310  0.156  0.595  1.0
  O  O16  1  0.592  0.647  0.658  1.0
  O  O17  1  0.408  0.353  0.342  1.0
  O  O18  1  0.644  0.885  0.929  1.0
  O  O19  1  0.356  0.115  0.071  1.0
  O  O20  1  0.411  0.792  0.159  1.0
  O  O21  1  0.589  0.208  0.841  1.0
  O  O22  1  0.247  0.723  0.815  1.0
  O  O23  1  0.753  0.277  0.185  1.0
  O  O24  1  0.052  0.793  0.007  1.0
  O  O25  1  0.948  0.207  0.993  1.0
  O  O26  1  0.751  0.695  0.282  1.0
  O  O27  1  0.249  0.305  0.718  1.0
  O  O28  1  0.852  0.885  0.532  1.0
  O  O29  1  0.148  0.115  0.468  1.0
  O  O30  1  0.187  0.582  0.519  1.0
  O  O31  1  0.813  0.418  0.481  1.0
  O  O32  1  0.453  0.781  0.435  1.0
  O  O33  1  0.547  0.219  0.565  1.0
  O  O34  1  0.325  0.939  0.651  1.0
  O  O35  1  0.675  0.061  0.349  1.0
  O  O36  1  0.896  0.511  0.805  1.0
  O  O37  1  0.104  0.489  0.195  1.0
  O  O38  1  0.717  0.551  0.046  1.0
  O  O39  1  0.283  0.449  0.954  1.0
  O  O40  1  0.931  0.987  0.780  1.0
  O  O41  1  0.069  0.013  0.220  1.0
[/CIF]
.