data_1004023
_chemical_name_systematic          'Potassium lanthanum chromate'
_chemical_formula_structural       'K La (Cr O4)2'
_chemical_formula_sum              'Cr2 K La O8'
_publ_section_title
;
Crystal growth, structure, and properties of K La (Cr O~4~)~2~
;
loop_
_publ_author_name
  'Bueno, I'
  'Parada, C'
  'Garcia, O'
  'Puebla, E G'
  'Monge, A'
  'Valero, C R'
_journal_name_full
;
Journal of the Chemical Society. Dalton Transactions, Inorganic
Chemistry (1972-)
;
_journal_coden_ASTM                JCDTBI
_journal_volume                    1988
_journal_year                      1988
_journal_page_first                1911
_journal_page_last                 1914
_cell_length_a                     8.729(2)
_cell_length_b                     7.4752(7)
_cell_length_c                     11.049(6)
_cell_angle_alpha                  90
_cell_angle_beta                   92.42(1)
_cell_angle_gamma                  90
_cell_volume                       720.3
_cell_formula_units_Z              4
_symmetry_space_group_name_H-M     'P 1 21/c 1'
_symmetry_Int_Tables_number        14
_symmetry_cell_setting             monoclinic
loop_
_symmetry_equiv_pos_as_xyz
  'x,y,z'
  '-x,1/2+y,1/2-z'
  '-x,-y,-z'
  'x,1/2-y,1/2+z'
loop_
_atom_type_symbol
_atom_type_oxidation_number
  La3+   3.000
  Cr6+   6.000
  K1+    1.000
  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
  La1   La3+   4 e 0.05964(4) 0.16075(5) 0.34360(3) 1.  0 d
  Cr1   Cr6+   4 e 0.28534(10) 0.33444(16) 0.08843(8) 1.  0 d
  Cr2   Cr6+   4 e -0.19408(10) 0.16180(16) 0.10609(8) 1.  0 d
  K1    K1+    4 e 0.43053(15) -0.15257(22) 0.16406(13) 1.  0 d
  O1    O2-    4 e 0.26763(55) 0.17906(73) 0.19406(42) 1.  0 d
  O2    O2-    4 e 0.111590(51) 0.43514(70) 0.06246(43) 1.  0 d
  O3    O2-    4 e 0.31382(52) 0.24612(68) -0.04628(42) 1.  0 d
  O4    O2-    4 e 0.41620(59) 0.47705(75) 0.12845(46) 1.  0 d
  O5    O2-    4 e -0.14874(51) 0.33980(69) 0.19277(39) 1.  0 d
  O6    O2-    4 e -0.09514(52) -0.00428(67) 0.17654(43) 1.  0 d
  O7    O2-    4 e -0.37595(50) 0.12809(66) 0.10624(46) 1.  0 d
  O8    O2-    4 e -0.14139(55) 0.18909(68) -0.03418(40) 1.  0 d
_refine_ls_R_factor_all            0.024