data_1001202
_chemical_name_systematic          'Lanthanum rhenium oxide (6/4/18)'
_chemical_formula_structural       'La6 Re4 O18'
_chemical_formula_sum              'La6 O18 Re4'
_publ_section_title
;
Structure Cristalline d'Oxydes Doubles de Rhenium. II.L'Oxyde de
Lanthane-Rhenium La~6~ Re~4~ O~18~
;
loop_
_publ_author_name
  'Besse, J P'
  'Baud, G'
  'Chevalier, R'
  'Gasperin, M'
_journal_name_full                 'Acta Crystallographica B (24,1968-38,1982)'
_journal_coden_ASTM                ACBCAR
_journal_volume                    34
_journal_year                      1978
_journal_page_first                3532
_journal_page_last                 3535
_cell_length_a                     6.858(5)
_cell_length_b                     11.198(7)
_cell_length_c                     5.673(4)
_cell_angle_alpha                  105.32(20)
_cell_angle_beta                   111.17(20)
_cell_angle_gamma                  92.94(15)
_cell_volume                       386.6
_cell_formula_units_Z              1
_exptl_crystal_density_meas        7.97
_symmetry_space_group_name_H-M     'P -1'
_symmetry_Int_Tables_number        2
_symmetry_cell_setting             triclinic
loop_
_symmetry_equiv_pos_as_xyz
  'x,y,z'
  '-x,-y,-z'
loop_
_atom_type_symbol
_atom_type_oxidation_number
  Re4+   4.000
  Re5+   5.000
  La3+   3.000
  O2-   -2.000
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_symmetry_multiplicity
_atom_site_Wyckoff_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_attached_hydrogens
_atom_site_calc_flag
  Re1   Re4+   2 i 0.1122(1) 0.0909(1) 0.6003(1) 1.  0 d
  Re2   Re5+   2 i 0.6219(1) 0.4283(1) 0.0730(1) 1.  0 d
  La1   La3+   2 i 0.9055(2) 0.3804(1) 0.6622(2) 1.  0 d
  La2   La3+   2 i 0.7248(2) 0.7295(1) 0.7274(2) 1.  0 d
  La3   La3+   2 i 0.6659(2) 0.1178(1) 0.8972(2) 1.  0 d
  O1    O2-    2 i 0.3218(21) 0.4264(12) 0.0475(27) 1.  0 d
  O2    O2-    2 i 0.6909(21) 0.9346(12) 0.0856(27) 1.  0 d
  O3    O2-    2 i 0.9155(21) 0.4073(12) 0.1103(27) 1.  0 d
  O4    O2-    2 i 0.0207(22) 0.8160(13) 0.1787(29) 1.  0 d
  O5    O2-    2 i 0.6151(21) 0.2887(12) 0.2235(27) 1.  0 d
  O6    O2-    2 i 0.4442(21) 0.6869(13) 0.2697(28) 1.  0 d
  O7    O2-    2 i 0.9904(21) 0.1872(13) 0.3698(28) 1.  0 d
  O8    O2-    2 i 0.7492(23) 0.5367(13) 0.4224(30) 1.  0 d
  O9    O2-    2 i 0.3264(22) 0.0726(13) 0.4555(29) 1.  0 d
_refine_ls_R_factor_all            0.059