#------------------------------------------------------------------------------
#$Date: 2015-01-27 20:58:39 +0100 (Tue 27 de Jan de 2015) $
#$Revision: 130149 $
#$URL: svn://www.crystallography.net/cod/cif/1/00/14/1001420.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_1001420
loop_
_publ_author_name
'Maignan, A'
'Michel, C'
'Hervieu, M'
'Martin, C'
'Groult, D'
'Raveau, B'
_publ_section_title
;
Tl₂Ba₂CaCu₂O₈: structure and superconductivity
;
_journal_coden_ASTM              MPLBET
_journal_name_full               'Modern Physics Letters B'
_journal_page_first              681
_journal_page_last               687
_journal_paper_doi               10.1142/S0217984988000345
_journal_volume                  2
_journal_year                    1988
_chemical_formula_structural     'Tl1.93 Ba2 Ca1.07 Cu2 O8'
_chemical_formula_sum            'Ba2 Ca1.07 Cu2 O8 Tl1.93'
_chemical_name_systematic
;
Thallium barium calcium copper oxide (1.9/2/1.1/2/8)
;
_space_group_IT_number           139
_symmetry_cell_setting           tetragonal
_symmetry_Int_Tables_number      139
_symmetry_space_group_name_Hall  '-I 4 2'
_symmetry_space_group_name_H-M   'I 4/m m m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   3.86
_cell_length_b                   3.86
_cell_length_c                   29.388
_cell_volume                     437.9
_cod_database_code               1001420
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-x,-y,z
-x,y,z
x,-y,z
-y,x,z
y,-x,z
y,x,z
-y,-x,z
-x,-y,-z
x,y,-z
x,-y,-z
-x,y,-z
y,-x,-z
-y,x,-z
-y,-x,-z
y,x,-z
1/2+x,1/2+y,1/2+z
1/2-x,1/2-y,1/2+z
1/2-x,1/2+y,1/2+z
1/2+x,1/2-y,1/2+z
1/2-y,1/2+x,1/2+z
1/2+y,1/2-x,1/2+z
1/2+y,1/2+x,1/2+z
1/2-y,1/2-x,1/2+z
1/2-x,1/2-y,1/2-z
1/2+x,1/2+y,1/2-z
1/2+x,1/2-y,1/2-z
1/2-x,1/2+y,1/2-z
1/2+y,1/2-x,1/2-z
1/2-y,1/2+x,1/2-z
1/2-y,1/2-x,1/2-z
1/2+y,1/2+x,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
Tl1 Tl3+ 4 e 0.5 0.5 0.2147(7) 0.9 0 d
Ca1 Ca2+ 4 e 0.5 0.5 0.2147(7) 0.1 0 d
Ba1 Ba2+ 4 e 0. 0. 0.1220(7) 1. 0 d
Ca2 Ca2+ 2 a 0. 0. 0. 0.87 0 d
Tl2 Tl3+ 2 a 0. 0. 0. 0.13 0 d
Cu1 Cu2+ 4 e 0.5 0.5 0.0558(16) 1. 0 d
O1 O2- 8 g 0. 0.5 0.053(4) 1. 0 d
O2 O2- 4 e 0.5 0.5 0.145(4) 1. 0 d
O3 O2- 4 e 0.5 0.5 0.297(5) 1. 0 d
loop_
_atom_type_symbol
_atom_type_oxidation_number
Tl3+ 3.000
Ca2+ 2.000
Ba2+ 2.000
Cu2+ 2.040
O2- -2.000
