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#$Date: 2016-02-14 14:26:36 +0000 (Sun, 14 Feb 2016) $
#$Revision: 176435 $
#$URL: svn://www.crystallography.net/cod/cif/1/00/10/1001072.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_1001072
loop_
_publ_author_name
'Hervieu, M'
'Raveau, B'
_publ_section_title
;
Les Perovskites (Ca~1-x~ Sr~x~) (Ca~.3333~ Nb~.6667~) O~3~
;
_journal_coden_ASTM              JSSCBI
_journal_name_full               'Journal of Solid State Chemistry'
_journal_page_first              209
_journal_page_last               222
_journal_paper_doi               10.1016/0022-4596(79)90073-2
_journal_volume                  28
_journal_year                    1979
_chemical_formula_structural     'Sr (Ca.3333 Nb.6667) O3'
_chemical_formula_sum            'Ca0.3333 Nb0.6667 O3 Sr'
_chemical_name_systematic
;
STRONTIUM CALCIUM NIOBIUM OXIDE (1/0.3/0.7/3)
;
_space_group_IT_number           81
_symmetry_cell_setting           tetragonal
_symmetry_Int_Tables_number      81
_symmetry_space_group_name_Hall  'P -4'
_symmetry_space_group_name_H-M   'P -4'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   8.19
_cell_length_b                   8.19
_cell_length_c                   8.209
_cell_volume                     550.6
_exptl_crystal_density_meas      5.14
_refine_ls_R_factor_all          0.08
_cod_original_formula_sum        'Ca.3333 Nb.6667 O3 Sr'
_cod_database_code               1001072
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-x,-y,z
y,-x,-z
-y,x,-z
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
Sr1 Sr2+ 4 h 0.25 0.25 0.255 1. 0 d
Sr2 Sr2+ 4 h 0.25 0.25 0.739 1. 0 d
Ca1 Ca2+ 1 a 0. 0. 0. 0.6667 0 d
Ca2 Ca2+ 1 c 0.5 0.5 0. 0.6667 0 d
Ca3 Ca2+ 2 g 0. 0.5 0.479 0.6667 0 d
Nb1 Nb5+ 1 a 0. 0. 0. 0.3333 0 d
Nb2 Nb5+ 1 c 0.5 0.5 0. 0.3333 0 d
Nb3 Nb5+ 2 g 0. 0.5 0.479 0.3333 0 d
Nb4 Nb5+ 1 b 0. 0. 0.5 1. 0 d
Nb5 Nb5+ 1 d 0.5 0.5 0.5 1. 0 d
Nb6 Nb5+ 2 g 0. 0.5 -0.022 1. 0 d
O1 O2- 2 e 0. 0. 0.2696 1. 0 d
O2 O2- 2 f 0.5 0.5 0.2694 1. 0 d
O3 O2- 2 g 0. 0.5 0.2304 1. 0 d
O4 O2- 2 g 0. 0.5 0.7696 1. 0 d
O5 O2- 4 h 0.248 0.584 0.5 1. 0 d
O6 O2- 4 h 0.23 -0.084 0.5 1. 0 d
O7 O2- 4 h 0.248 -0.084 0. 1. 0 d
O8 O2- 4 h 0.23 0.584 0. 1. 0 d
loop_
_atom_type_symbol
_atom_type_oxidation_number
Sr2+ 2.000
Ca2+ 2.000
Nb5+ 5.000
O2- -2.000