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#$Date: 2016-02-13 21:28:24 +0200 (Sat, 13 Feb 2016) $
#$Revision: 176429 $
#$URL: svn://www.crystallography.net/cod/cif/1/54/08/1540898.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_1540898
loop_
_publ_author_name
'Schaffrath, U.'
'Gruehn, R.'
_publ_section_title
;
 Zum chemischen Transport von Verbindungen Des Typs Ln Ta7 O19 (Ln= La-Nd)
 mit einer Bemerkung zur Strukturverfeinerung von Nd Ta7 O19
;
_journal_name_full
'Zeitschrift fuer Anorganische und Allgemeine Chemie'
_journal_page_first              43
_journal_page_last               54
_journal_volume                  588
_journal_year                    1990
_chemical_formula_sum            'Nd O19 Ta7'
_chemical_name_systematic        'Nd (Ta7 O19)'
_space_group_IT_number           188
_symmetry_space_group_name_Hall  'P -6c 2'
_symmetry_space_group_name_H-M   'P -6 c 2'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            2
_cell_length_a                   6.2229
_cell_length_b                   6.2229
_cell_length_c                   19.939
_cell_volume                     668.682
_citation_journal_id_ASTM        ZAACAB
_cod_data_source_file            Schaffrath_ZAACAB_1990_1281.cif
_cod_data_source_block           Nd1O19Ta7
_cod_original_formula_sum        'Nd1 O19 Ta7'
_cod_database_code               1540898
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-x+y,-x,-z+1/2
-y,x-y,z
x,y,-z+1/2
-x+y,-x,z
-y,x-y,-z+1/2
-y,-x,-z
-x+y,y,z+1/2
x,x-y,-z
-y,-x,z+1/2
-x+y,y,-z
x,x-y,z+1/2
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
Ta1 Ta+5 0.6667 0.3333 0 1 0.0
O5 O-2 0.3333 0.6667 0.1315 1 0.0
O4 O-2 0.6667 0.3333 0.166 1 0.0
O3 O-2 0.371 0.415 0.25 1 0.0
O2 O-2 0.431 0.051 0.9427 1 0.0
Ta2 Ta+5 0.3611 0.3594 0.15597 1 0.0
O1 O-2 0.244 0.989 0.1536 1 0.0
Nd1 Nd+3 0.3333 0.6667 0 1 0.0
