data_global
_amcsd_formula_title 'La2 O7 Ti2'
loop_
_publ_author_name
'Gasperin M'
_journal_name_full 'Acta Crystallographica, Section B'
_journal_volume 31 
_journal_year 1975
_journal_page_first 2129
_journal_page_last 2130
_publ_section_title
;
 Dititanate de lanthane
 _cod_database_code 1001022
;
_database_code_amcsd 0009540
_chemical_formula_sum 'La2 Ti2 O7'
_cell_length_a 7.800
_cell_length_b 13.011
_cell_length_c 5.546
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 98.60
_cell_volume 556.512
_exptl_crystal_density_diffrn      5.795
_symmetry_space_group_name_H-M 'P 1 1 21'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '-x,-y,1/2+z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
La1   0.27890   0.11380   0.25000
La2   0.77410   0.09930   0.25430
La3   0.35020   0.39090   0.80260
La4   0.85250   0.41640   0.84130
Ti1   0.03200   0.11910   0.76300
Ti2   0.52710   0.12000   0.75980
Ti3   0.07800   0.32280   0.29460
Ti4   0.58330   0.32630   0.29750
O1   0.77600   0.10900   0.79900
O2   0.27500   0.09000   0.69800
O3   0.03000   0.01600   0.02400
O4   0.47900   0.02000   0.02600
O5   0.09800   0.22600   0.96900
O6   0.51700   0.22900   0.96300
O7   0.03300   0.18700   0.46000
O8   0.55900   0.18900   0.45500
O9   0.08900   0.40900   0.55400
O10   0.61300   0.39800   0.56900
O11   0.12100   0.43200   0.07800
O12   0.59900   0.44000   0.08900
O13   0.32700   0.31200   0.32300
O14   0.82500   0.30000   0.22100