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#$Date: 2015-01-27 20:58:39 +0100 (Tue 27 de Jan de 2015) $
#$Revision: 130149 $
#$URL: svn://www.crystallography.net/cod/cif/1/00/10/1001006.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_1001006
loop_
_publ_author_name
'Choisnet, J'
'Groult, D'
'Raveau, B'
'Gasperin, M'
_publ_section_title
;
Nouvelles structures a tunnels de section pentagonale K₃ Nb₃ B₂
O₁₂ et K₃ Ta₃ B₂ O₁₂
;
_journal_coden_ASTM              ACBCAR
_journal_name_full               'Acta Crystallographica B (24,1968-38,1982)'
_journal_page_first              1841
_journal_page_last               1845
_journal_paper_doi               10.1107/S056774087700716X
_journal_volume                  33
_journal_year                    1977
_chemical_formula_structural     'B2 K3 Ta3 O12'
_chemical_formula_sum            'B2 K3 O12 Ta3'
_chemical_name_systematic        'Diboron tripotassium tritantalum oxide'
_space_group_IT_number           157
_symmetry_cell_setting           trigonal
_symmetry_Int_Tables_number      157
_symmetry_space_group_name_Hall  'P 3 -2'
_symmetry_space_group_name_H-M   'P 3 1 m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            1
_cell_length_a                   8.775(5)
_cell_length_b                   8.775(5)
_cell_length_c                   3.897(1)
_cell_volume                     259.9
_exptl_crystal_density_meas      5.58
_cod_database_code               1001006
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-y,x-y,z
y-x,-x,z
y,x,z
-x,y-x,z
x-y,-y,z
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
? ? ? ?
