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#$Date: 2018-09-27 07:13:35 +0300 (Thu, 27 Sep 2018) $
#$Revision: 211196 $
#$URL: file:///home/coder/svn-repositories/cod/cif/1/53/55/1535552.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_1535552
loop_
_publ_author_name
'Hofmann, R.'
'Gruehn, R.'
_publ_section_title
;
 Zur Darstellung und Struktur neuer Niobate: LnNb7O19 (Ln = La, Ce)
;
_journal_name_full
'Zeitschrift fuer Anorganische und Allgemeine Chemie'
_journal_page_first              105
_journal_page_last               117
_journal_volume                  602
_journal_year                    1991
_chemical_formula_sum            'La Nb7 O19'
_space_group_IT_number           143
_symmetry_space_group_name_Hall  'P 3'
_symmetry_space_group_name_H-M   'P 3'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            2
_cell_length_a                   6.2531
_cell_length_b                   6.2531
_cell_length_c                   20.0685
_cell_volume                     679.573
_citation_journal_id_ASTM        ZAACAB
_cod_data_source_file            Hofmann_ZAACAB_1991_76.cif
_cod_data_source_block           La1Nb7O19
_cod_original_cell_volume        679.5733
_cod_original_formula_sum        'La1 Nb7 O19'
_cod_database_code               1535552
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-y,x-y,z
-x+y,-x,z
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
O4 O-2 0.0847 0.6661 0.8475 1 0.0
O11 O-2 0 0 0.1316 1 0.0
Nb2 Nb+5 0.3335 0.0286 0.465 1 0.0
O16 O-2 0.6667 0.3333 0.4375 1 0.0
O1 O-2 0.0879 0.4216 0.1531 1 0.0
O8 O-2 0.2999 0.0353 0.7505 1 0.0
La2 La+3 0.6667 0.3333 0.3065 1 0.0
O17 O-2 0.6667 0.3333 0.6636 1 0.0
O3 O-2 0.0837 0.6677 0.6534 1 0.0
Nb6 Nb+5 0.6667 0.3333 0.995 1 0.0
O18 O-2 0.6667 0.3333 0.8365 1 0.0
O9 O-2 0.3669 0.0683 0.5558 1 0.0
Nb5 Nb+5 0 0 0.3115 1 0.0
O7 O-2 0.2785 0.0378 0.3616 1 0.0
O5 O-2 0.3919 0.2893 0.0585 1 0.0
O10 O-2 0.3886 0.0932 0.9445 1 0.0
Nb4 Nb+5 0.3333 0.0287 0.8415 1 0.0
O14 O-2 0 0 0.8681 1 0.0
Nb1 Nb+5 0.3334 0.3111 0.1533 1 0.0
O12 O-2 0 0 0.4698 1 0.0
O13 O-2 0 0 0.6434 1 0.0
Nb3 Nb+5 0.3334 0.0306 0.6533 1 0.0
O6 O-2 0.2747 0.2308 0.2476 1 0.0
La1 La+3 0 0 0 1 0.0
O2 O-2 0.0843 0.6665 0.4594 1 0.0
O15 O-2 0.6667 0.3333 0.1758 1 0.0
