The crystal structure described by La3GaGe5O16 crystallizes in the triclinic P-1 space group. There are three inequivalent La sites. In the first La site, La(1) is bonded in a 9-coordinate geometry to one O(1), one O(13), one O(15), one O(16), one O(3), one O(6), one O(9), and two equivalent O(14) atoms. In the second La site, La(2) is bonded in a 9-coordinate geometry to one O(11), one O(3), one O(4), two equivalent O(1), two equivalent O(10), and two equivalent O(5) atoms. In the third La site, La(3) is bonded in a 9-coordinate geometry to one O(2), one O(8), one O(9), two equivalent O(12), two equivalent O(6), and two equivalent O(7) atoms. Ga(1) is bonded to one O(11), one O(14), one O(2), one O(3), and one O(4) atom to form distorted GaO5 tetrahedra that share  a cornercorner with one Ge(2)O6 octahedra,  a cornercorner with one Ge(5)O4 tetrahedra,  a cornercorner with one Ge(1)O5 trigonal bipyramid,  a cornercorner with one Ge(3)O5 trigonal bipyramid, and  an edgeedge with one Ge(2)O6 octahedra. The corner-sharing octahedral tilt angles are 62°. There are five inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to one O(14), one O(6), one O(9), and two equivalent O(12) atoms to form GeO5 trigonal bipyramids that share  a cornercorner with one Ga(1)O5 tetrahedra,  a cornercorner with one Ge(4)O4 tetrahedra, and  an edgeedge with one Ge(1)O5 trigonal bipyramid. In the second Ge site, Ge(2) is bonded to one O(11), one O(13), one O(15), one O(2), one O(4), and one O(8) atom to form GeO6 octahedra that share  a cornercorner with one Ga(1)O5 tetrahedra, corners with two equivalent Ge(4)O4 tetrahedra, corners with two equivalent Ge(5)O4 tetrahedra, and  an edgeedge with one Ga(1)O5 tetrahedra. In the third Ge site, Ge(3) is bonded to one O(1), one O(16), one O(3), and two equivalent O(10) atoms to form GeO5 trigonal bipyramids that share  a cornercorner with one Ga(1)O5 tetrahedra,  a cornercorner with one Ge(5)O4 tetrahedra, and  an edgeedge with one Ge(3)O5 trigonal bipyramid. In the fourth Ge site, Ge(4) is bonded to one O(15), one O(7), one O(8), and one O(9) atom to form GeO4 tetrahedra that share corners with two equivalent Ge(2)O6 octahedra and  a cornercorner with one Ge(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 58-61°. In the fifth Ge site, Ge(5) is bonded to one O(11), one O(13), one O(16), and one O(5) atom to form GeO4 tetrahedra that share corners with two equivalent Ge(2)O6 octahedra,  a cornercorner with one Ga(1)O5 tetrahedra, and  a cornercorner with one Ge(3)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 57-60°. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one La(1), two equivalent La(2), and one Ge(3) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one La(3), one Ga(1), and one Ge(2) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one La(1), one La(2), one Ga(1), and one Ge(3) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one La(2), one Ga(1), and one Ge(2) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to two equivalent La(2) and one Ge(5) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one La(1), two equivalent La(3), and one Ge(1) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to two equivalent La(3) and one Ge(4) atom. In the eighth O site, O(8) is bonded in a distorted bent 120 degrees geometry to one La(3), one Ge(2), and one Ge(4) atom. In the ninth O site, O(9) is bonded in a distorted bent 120 degrees geometry to one La(1), one La(3), one Ge(1), and one Ge(4) atom. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to two equivalent La(2) and two equivalent Ge(3) atoms. In the eleventh O site, O(11) is bonded in a 4-coordinate geometry to one La(2), one Ga(1), one Ge(2), and one Ge(5) atom. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to two equivalent La(3) and two equivalent Ge(1) atoms. In the thirteenth O site, O(13) is bonded in a distorted trigonal planar geometry to one La(1), one Ge(2), and one Ge(5) atom. In the fourteenth O site, O(14) is bonded in a distorted trigonal planar geometry to two equivalent La(1), one Ga(1), and one Ge(1) atom. In the fifteenth O site, O(15) is bonded in a distorted trigonal planar geometry to one La(1), one Ge(2), and one Ge(4) atom. In the sixteenth O site, O(16) is bonded in a distorted trigonal planar geometry to one La(1), one Ge(3), and one Ge(5) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_La3GaGe5O16
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.889
_cell_length_b   8.213
_cell_length_c   15.866
_cell_angle_alpha   90.745
_cell_angle_beta   94.278
_cell_angle_gamma   89.961
_symmetry_Int_Tables_number   1
_cell_volume   635.242
_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
  La  La0  1  0.022  0.135  0.249  1.0
  La  La1  1  0.027  0.736  0.455  1.0
  La  La2  1  0.973  0.264  0.545  1.0
  La  La3  1  0.021  0.738  0.035  1.0
  La  La4  1  0.978  0.865  0.751  1.0
  La  La5  1  0.979  0.262  0.965  1.0
  Ga  Ga6  1  0.506  0.193  0.743  1.0
  Ga  Ga7  1  0.494  0.807  0.257  1.0
  Ge  Ge8  1  0.520  0.944  0.911  1.0
  Ge  Ge9  1  0.010  0.567  0.244  1.0
  Ge  Ge10  1  0.484  0.944  0.586  1.0
  Ge  Ge11  1  0.479  0.438  0.126  1.0
  Ge  Ge12  1  0.553  0.433  0.361  1.0
  Ge  Ge13  1  0.990  0.433  0.756  1.0
  Ge  Ge14  1  0.516  0.056  0.414  1.0
  Ge  Ge15  1  0.447  0.567  0.639  1.0
  Ge  Ge16  1  0.480  0.056  0.089  1.0
  Ge  Ge17  1  0.521  0.562  0.874  1.0
  O  O18  1  0.129  0.919  0.595  1.0
  O  O19  1  0.207  0.721  0.186  1.0
  O  O20  1  0.690  0.066  0.664  1.0
  O  O21  1  0.189  0.283  0.693  1.0
  O  O22  1  0.811  0.717  0.307  1.0
  O  O23  1  0.238  0.523  0.546  1.0
  O  O24  1  0.119  0.063  0.095  1.0
  O  O25  1  0.748  0.522  0.962  1.0
  O  O26  1  0.745  0.584  0.147  1.0
  O  O27  1  0.793  0.279  0.814  1.0
  O  O28  1  0.762  0.477  0.454  1.0
  O  O29  1  0.668  0.252  0.110  1.0
  O  O30  1  0.871  0.081  0.405  1.0
  O  O31  1  0.551  0.854  0.482  1.0
  O  O32  1  0.714  0.418  0.658  1.0
  O  O33  1  0.310  0.934  0.336  1.0
  O  O34  1  0.546  0.865  0.033  1.0
  O  O35  1  0.796  0.393  0.283  1.0
  O  O36  1  0.449  0.146  0.518  1.0
  O  O37  1  0.454  0.135  0.967  1.0
  O  O38  1  0.332  0.748  0.890  1.0
  O  O39  1  0.604  0.992  0.197  1.0
  O  O40  1  0.204  0.607  0.717  1.0
  O  O41  1  0.255  0.416  0.853  1.0
  O  O42  1  0.763  0.608  0.797  1.0
  O  O43  1  0.396  0.008  0.803  1.0
  O  O44  1  0.371  0.245  0.361  1.0
  O  O45  1  0.286  0.582  0.342  1.0
  O  O46  1  0.881  0.937  0.905  1.0
  O  O47  1  0.237  0.392  0.203  1.0
  O  O48  1  0.252  0.478  0.038  1.0
  O  O49  1  0.629  0.755  0.639  1.0
[/CIF]
.
The crystal structure described by La3GaGe5O16 crystallizes in the triclinic P-1 space group. There are three inequivalent La sites. In the first La site, La(1) is bonded in a 9-coordinate geometry to one O(1), one O(13), one O(15), one O(16), one O(3), one O(6), one O(9), and two equivalent O(14) atoms. In the second La site, La(2) is bonded in a 9-coordinate geometry to one O(11), one O(3), one O(4), two equivalent O(1), two equivalent O(10), and two equivalent O(5) atoms. In the third La site, La(3) is bonded in a 9-coordinate geometry to one O(2), one O(8), one O(9), two equivalent O(12), two equivalent O(6), and two equivalent O(7) atoms. Ga(1) is bonded to one O(11), one O(14), one O(2), one O(3), and one O(4) atom to form distorted GaO5 tetrahedra that share  a cornercorner with one Ge(2)O6 octahedra,  a cornercorner with one Ge(5)O4 tetrahedra,  a cornercorner with one Ge(1)O5 trigonal bipyramid,  a cornercorner with one Ge(3)O5 trigonal bipyramid, and  an edgeedge with one Ge(2)O6 octahedra. The corner-sharing octahedral tilt angles are 62°. There are five inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to one O(14), one O(6), one O(9), and two equivalent O(12) atoms to form GeO5 trigonal bipyramids that share  a cornercorner with one Ga(1)O5 tetrahedra,  a cornercorner with one Ge(4)O4 tetrahedra, and  an edgeedge with one Ge(1)O5 trigonal bipyramid. In the second Ge site, Ge(2) is bonded to one O(11), one O(13), one O(15), one O(2), one O(4), and one O(8) atom to form GeO6 octahedra that share  a cornercorner with one Ga(1)O5 tetrahedra, corners with two equivalent Ge(4)O4 tetrahedra, corners with two equivalent Ge(5)O4 tetrahedra, and  an edgeedge with one Ga(1)O5 tetrahedra. In the third Ge site, Ge(3) is bonded to one O(1), one O(16), one O(3), and two equivalent O(10) atoms to form GeO5 trigonal bipyramids that share  a cornercorner with one Ga(1)O5 tetrahedra,  a cornercorner with one Ge(5)O4 tetrahedra, and  an edgeedge with one Ge(3)O5 trigonal bipyramid. In the fourth Ge site, Ge(4) is bonded to one O(15), one O(7), one O(8), and one O(9) atom to form GeO4 tetrahedra that share corners with two equivalent Ge(2)O6 octahedra and  a cornercorner with one Ge(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 58-61°. In the fifth Ge site, Ge(5) is bonded to one O(11), one O(13), one O(16), and one O(5) atom to form GeO4 tetrahedra that share corners with two equivalent Ge(2)O6 octahedra,  a cornercorner with one Ga(1)O5 tetrahedra, and  a cornercorner with one Ge(3)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 57-60°. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one La(1), two equivalent La(2), and one Ge(3) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one La(3), one Ga(1), and one Ge(2) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one La(1), one La(2), one Ga(1), and one Ge(3) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one La(2), one Ga(1), and one Ge(2) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to two equivalent La(2) and one Ge(5) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one La(1), two equivalent La(3), and one Ge(1) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to two equivalent La(3) and one Ge(4) atom. In the eighth O site, O(8) is bonded in a distorted bent 120 degrees geometry to one La(3), one Ge(2), and one Ge(4) atom. In the ninth O site, O(9) is bonded in a distorted bent 120 degrees geometry to one La(1), one La(3), one Ge(1), and one Ge(4) atom. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to two equivalent La(2) and two equivalent Ge(3) atoms. In the eleventh O site, O(11) is bonded in a 4-coordinate geometry to one La(2), one Ga(1), one Ge(2), and one Ge(5) atom. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to two equivalent La(3) and two equivalent Ge(1) atoms. In the thirteenth O site, O(13) is bonded in a distorted trigonal planar geometry to one La(1), one Ge(2), and one Ge(5) atom. In the fourteenth O site, O(14) is bonded in a distorted trigonal planar geometry to two equivalent La(1), one Ga(1), and one Ge(1) atom. In the fifteenth O site, O(15) is bonded in a distorted trigonal planar geometry to one La(1), one Ge(2), and one Ge(4) atom. In the sixteenth O site, O(16) is bonded in a distorted trigonal planar geometry to one La(1), one Ge(3), and one Ge(5) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_La3GaGe5O16
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.889
_cell_length_b   8.213
_cell_length_c   15.866
_cell_angle_alpha   90.745
_cell_angle_beta   94.278
_cell_angle_gamma   89.961
_symmetry_Int_Tables_number   1
_cell_volume   635.242
_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
  La  La0  1  0.022  0.135  0.249  1.0
  La  La1  1  0.027  0.736  0.455  1.0
  La  La2  1  0.973  0.264  0.545  1.0
  La  La3  1  0.021  0.738  0.035  1.0
  La  La4  1  0.978  0.865  0.751  1.0
  La  La5  1  0.979  0.262  0.965  1.0
  Ga  Ga6  1  0.506  0.193  0.743  1.0
  Ga  Ga7  1  0.494  0.807  0.257  1.0
  Ge  Ge8  1  0.520  0.944  0.911  1.0
  Ge  Ge9  1  0.010  0.567  0.244  1.0
  Ge  Ge10  1  0.484  0.944  0.586  1.0
  Ge  Ge11  1  0.479  0.438  0.126  1.0
  Ge  Ge12  1  0.553  0.433  0.361  1.0
  Ge  Ge13  1  0.990  0.433  0.756  1.0
  Ge  Ge14  1  0.516  0.056  0.414  1.0
  Ge  Ge15  1  0.447  0.567  0.639  1.0
  Ge  Ge16  1  0.480  0.056  0.089  1.0
  Ge  Ge17  1  0.521  0.562  0.874  1.0
  O  O18  1  0.129  0.919  0.595  1.0
  O  O19  1  0.207  0.721  0.186  1.0
  O  O20  1  0.690  0.066  0.664  1.0
  O  O21  1  0.189  0.283  0.693  1.0
  O  O22  1  0.811  0.717  0.307  1.0
  O  O23  1  0.238  0.523  0.546  1.0
  O  O24  1  0.119  0.063  0.095  1.0
  O  O25  1  0.748  0.522  0.962  1.0
  O  O26  1  0.745  0.584  0.147  1.0
  O  O27  1  0.793  0.279  0.814  1.0
  O  O28  1  0.762  0.477  0.454  1.0
  O  O29  1  0.668  0.252  0.110  1.0
  O  O30  1  0.871  0.081  0.405  1.0
  O  O31  1  0.551  0.854  0.482  1.0
  O  O32  1  0.714  0.418  0.658  1.0
  O  O33  1  0.310  0.934  0.336  1.0
  O  O34  1  0.546  0.865  0.033  1.0
  O  O35  1  0.796  0.393  0.283  1.0
  O  O36  1  0.449  0.146  0.518  1.0
  O  O37  1  0.454  0.135  0.967  1.0
  O  O38  1  0.332  0.748  0.890  1.0
  O  O39  1  0.604  0.992  0.197  1.0
  O  O40  1  0.204  0.607  0.717  1.0
  O  O41  1  0.255  0.416  0.853  1.0
  O  O42  1  0.763  0.608  0.797  1.0
  O  O43  1  0.396  0.008  0.803  1.0
  O  O44  1  0.371  0.245  0.361  1.0
  O  O45  1  0.286  0.582  0.342  1.0
  O  O46  1  0.881  0.937  0.905  1.0
  O  O47  1  0.237  0.392  0.203  1.0
  O  O48  1  0.252  0.478  0.038  1.0
  O  O49  1  0.629  0.755  0.639  1.0
[/CIF]
.