#------------------------------------------------------------------------------
#$Date: 2016-02-14 15:26:36 +0100 (dom 14 de feb de 2016) $
#$Revision: 176435 $
#$URL: svn://www.crystallography.net/cod/cif/1/01/10/1011000.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/
#
# All data on this site have been placed in the public domain by the
# contributors.
#
data_1011000
loop_
_publ_author_name
'Gaertner, H R von'
_publ_section_title
;
Die Kristallstrukturen von Loparit und Pyrochlor
;
_journal_coden_ASTM              NJMABV
_journal_name_full
;
Neues Jahrbuch fuer Mineralogie, Geologie und Palaeontologie. Beilagen,
Abt. A (1925-1942)
;
_journal_page_first              1
_journal_page_last               30
_journal_volume                  61
_journal_year                    1930
_chemical_compound_source        'from Umptek, Kola Peninsula'
_chemical_formula_structural     'Na.5 Ce.3 Ca.2 Ti.8 Nb.2 O3'
_chemical_formula_sum            'Ca0.2 Ce0.3 Na0.5 Nb0.2 O3 Ti0.8'
_chemical_name_mineral           'Loparite (Ce)'
_chemical_name_systematic
;
Sodium calcium niobium titanium oxide (.8/.2/.8/.2/3)
;
_space_group_IT_number           221
_symmetry_cell_setting           cubic
_symmetry_Int_Tables_number      221
_symmetry_space_group_name_Hall  '-P 4 2 3'
_symmetry_space_group_name_H-M   'P m -3 m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            1
_cell_length_a                   3.854(18)
_cell_length_b                   3.854(18)
_cell_length_c                   3.854(18)
_cell_volume                     57.2
_exptl_crystal_density_meas      5
_cod_original_formula_sum        'Ca.2 Ce.3 Na.5 Nb.2 O3 Ti.8'
_cod_database_code               1011000
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
y,z,x
z,x,y
x,z,y
y,x,z
z,y,x
x,-y,-z
y,-z,-x
z,-x,-y
x,-z,-y
y,-x,-z
z,-y,-x
-x,y,-z
-y,z,-x
-z,x,-y
-x,z,-y
-y,x,-z
-z,y,-x
-x,-y,z
-y,-z,x
-z,-x,y
-x,-z,y
-y,-x,z
-z,-y,x
-x,-y,-z
-y,-z,-x
-z,-x,-y
-x,-z,-y
-y,-x,-z
-z,-y,-x
-x,y,z
-y,z,x
-z,x,y
-x,z,y
-y,x,z
-z,y,x
x,-y,z
y,-z,x
z,-x,y
x,-z,y
y,-x,z
z,-y,x
x,y,-z
y,z,-x
z,x,-y
x,z,-y
y,x,-z
z,y,-x
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
Na1 Na1+ 1 a 0. 0. 0. 0.5 0 d
Ce1 Ce3+ 1 a 0. 0. 0. 0.3 0 d
Ca1 Ca2+ 1 a 0. 0. 0. 0.2 0 d
Ti1 Ti4+ 1 b 0.5 0.5 0.5 0.8 0 d
Nb1 Nb5+ 1 b 0.5 0.5 0.5 0.2 0 d
O1 O2- 3 c 0.5 0.5 0. 1. 0 d
loop_
_atom_type_symbol
_atom_type_oxidation_number
Na1+ 1.000
Ce3+ 3.000
Ca2+ 2.000
Ti4+ 4.000
Nb5+ 5.000
O2- -2.000
