#------------------------------------------------------------------------------
#$Date: 2017-09-02 01:05:53 +0200 (Sat 02 de Sep de 2017) $
#$Revision: 200099 $
#$URL: svn://www.crystallography.net/cod/cif/1/00/61/1006134.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_1006134
loop_
_publ_author_name
'Medarde, M.'
'Rodriguez-Carvajal, J.'
_publ_section_title
;
 Oxygen vacancy ordering in La₂₋ₓSrₓNiO~4-δ~ (0 <= x <= 0.5):
 the crystal structure and defects investigated by neutron diffraction
;
_journal_coden_ASTM              ZPCMDN
_journal_issue                   3
_journal_name_full
;
 Zeitschrift für Physik B: Condensed Matter
;
_journal_page_first              307
_journal_page_last               315
_journal_paper_doi               10.1007/s002570050293
_journal_volume                  102
_journal_year                    1997
_chemical_formula_structural     '(La1.9 Sr0.1) (Ni O2.9)'
_chemical_formula_sum            'La1.9 Ni O2.9 Sr0.1'
_chemical_name_systematic
;
Lanthanum strontium nickel oxide (1.9/0.1/1/2.9)
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      15
_symmetry_space_group_name_Hall  '-B 2ab'
_symmetry_space_group_name_H-M   'B 1 1 2/n'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90.(0)
_cell_formula_units_Z            4
_cell_length_a                   5.4402(1)
_cell_length_b                   5.4764(1)
_cell_length_c                   12.5910(2)
_cell_volume                     375.1
_refine_ls_R_factor_all          0.056
_cod_original_formula_sum        'La1.9 Ni O2.9 Sr.1'
_cod_database_code               1006134
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
1/2-x,1/2-y,z
-x,-y,-z
1/2+x,1/2+y,-z
1/2+x,y,1/2+z
-x,1/2-y,1/2+z
1/2-x,-y,1/2-z
x,1/2+y,1/2-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
La1 La2+ 8 f 0. -0.0069(4) 0.3628(1) 0.95 0 d
Sr1 Sr2+ 8 f 0. -0.0069(4) 0.3628(1) 0.05 0 d
Ni1 Ni2+ 4 a 0. 0. 0. 1. 0 d
O1 O2- 4 e 0.25 0.25 -0.0068(3) 0.41(1) 0 d
O2 O2- 4 e 0.25 0.25(2) -0.4932(3) 0.49(1) 0 d
O3 O2- 8 f 0. 0.0280(5) 0.1763(2) 1. 0 d
loop_
_atom_type_symbol
_atom_type_oxidation_number
La2+ 2.000
Sr2+ 2.000
Ni2+ 1.800
O2- -2.000
