data_global
_amcsd_formula_title 'PbGe3O7'
loop_
_publ_author_name
'Otto H H'
_journal_name_full 'Zeitschrift fur Kristallographie'
_journal_volume 149 
_journal_year 1979
_journal_page_first 197
_journal_page_last 205
_publ_section_title
;
 Die kristallstruktur von PbGe3O7 mit Ge4+ in trigonal-dipyramidaler
 neben tetraedrischer koordination
;
_database_code_amcsd 0010804
_chemical_formula_sum 'Pb Ge3 O7'
_cell_length_a 5.270
_cell_length_b 14.097
_cell_length_c 16.059
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 1193.042
_exptl_crystal_density_diffrn      5.980
_symmetry_space_group_name_H-M 'P c a b'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,1/2+y,1/2-z'
  '-x,1/2-y,1/2+z'
  '1/2-x,y,1/2+z'
  '1/2+x,-y,1/2-z'
  '1/2+x,1/2-y,z'
  '1/2-x,1/2+y,-z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
Pb   0.12910   0.15180   0.18580 ?
Ge1   0.17500   0.36400   0.34080 ?
Ge2   0.15610   0.03510   0.40480 ?
Ge3   0.14290   0.32360   0.02900 ?
O1   0.36740   0.08910   0.33670   0.00350
O2   0.37840   0.46460   0.34510   0.00480
O3   0.41540   0.24990   0.08290   0.00960
O4   0.22320   0.29800   0.43170   0.00940
O5   0.28490   0.42280   0.08790   0.00430
O6   0.37880   0.09450  -0.00080   0.01360
O7   0.24680   0.30490   0.25160   0.01630
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
Pb 0.00910 0.00930 0.00690 0.00260 -0.00070 0.00230
Ge1 0.00520 0.00740 0.00250 0.00040 0.00150 -0.00010
Ge2 0.00580 0.00490 0.00260 0.00130 0.00000 0.00020
Ge3 0.00570 0.00510 0.00420 -0.00270 0.00140 0.00070