data_2012690
_journal_name_full  'Acta Crystallographica, Section C'
_journal_year  2002
_journal_volume  58
_journal_page_first  i69
_journal_page_last  i70
_publ_section_title
;
\g Sodium gallate: a Rietveld refinement using X-ray powder diffraction
;
loop_
_publ_author_name
  "Villafuerte-Castrej\'on, Mar\'ia-Elena"
  'Bucio, Lauro'
  "S\'anchez-Arjona, Angel"
  'Duque, Julio'
  "Pom\'es, Ram\'on"
_chemical_formula_sum  'Na Ga O2'
_chemical_formula_structural  'Na Ga O2'
_chemical_formula_weight  124.708
_symmetry_cell_setting  orthorhombic
_symmetry_space_group_name_H-M  'P b c a'
loop_
_symmetry_equiv_pos_site_id
_symmetry_equiv_pos_as_xyz
  1 x,y,z
  2 -x+1/2,-y,z+1/2
  3 -x,y+1/2,-z+1/2
  4 x+1/2,-y+1/2,-z
  5 -x,-y,-z
  6 x+1/2,y,-z+1/2
  7 x,-y+1/2,z+1/2
  8 -x+1/2,y+1/2,z
_cell_length_a  5.3145(2)
_cell_length_b  10.6234(5)
_cell_length_c  14.7782(7)
_cell_angle_alpha  90
_cell_angle_beta  90
_cell_angle_gamma  90
_cell_volume  834.36(7)
_cell_formula_units_Z  16
_cell_measurement_temperature  295
_diffrn_ambient_temperature  295
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
_atom_site_occupancy
  Ga1 0.1957(5) 0.0245(3) 0.1874(4) 0.0065(6) 1
  Ga2 0.3085(6) 0.2767(3) 0.0618(3) 0.0065(6) 1
  Na1 0.717(2) 0.9850(10)
  0.0660(10)
  0.0200(10)
  1
  Na2 0.815(2) 0.2730(10)
  0.1900(10)
  0.0200(10)
  1
  O1 0.640(3) 0.2740(10)
  0.0400(10)
  0.0050(10)
  1
  O2 0.212(2) 0.4420(10)
  0.0830(10)
  0.0050(10)
  1
  O3 0.225(2) 0.194(2) 0.1700(10)
  0.0050(10)
  1
  O4 0.134(3) 0.4810(10)
  0.2890(10)
  0.0050(10)
  1
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
_atom_site_aniso_type_symbol
  ? ? ? ? ? ? ? ?
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_site_symmetry_1
_geom_bond_site_symmetry_2
_geom_bond_distance
_geom_bond_publ_flag
  Ga1 O2 . . 1.84(2) yes
  Ga1 O3 . . 1.83(2) yes
  Ga1 O4 . . 1.85(2) yes
  Ga1 O4' . . 1.81(2) yes
  Ga2 O1 . . 1.79(2) yes
  Ga2 O1' . . 1.83(2) yes
  Ga2 O2 . . 1.85(2) yes
  Ga2 O3 . . 1.87(2) yes
  Na1 O1 . . 2.39(2) yes
  Na1 O2 . . 2.33(2) yes
  Na1 O2' . . 2.34(2) yes
  Na1 O4 . . 2.29(2) yes
  Na2 O1 . . 2.40(2) yes
  Na2 O3 . . 2.350(10)
  yes
  Na2 O3' . . 2.29(2) yes
  Na2 O4 . . 2.43(2) yes