#------------------------------------------------------------------------------
#$Date: 2016-02-14 15:26:36 +0100 (dom 14 de feb de 2016) $
#$Revision: 176435 $
#$URL: svn://www.crystallography.net/cod/cif/2/00/05/2000504.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/. The original data for this entry
# were provided by IUCr Journals, http://journals.iucr.org/.
#
# The file may be used within the scientific community so long as
# proper attribution is given to the journal article from which the
# data were obtained.
#
data_2000504
loop_
_publ_author_name
'Leclaire, A.'
'Borel, M. M.'
'Chardon, J.'
'Grandin, A.'
'Raveau, B.'
_publ_section_title
;
 A niobium silicophosphate belonging to the niobium phosphate bronze
 series: K₄Nb₈P₄SiO₃₄
;
_journal_issue                   10
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              1744
_journal_page_last               1747
_journal_paper_doi               10.1107/S0108270192002129
_journal_volume                  48
_journal_year                    1992
_chemical_formula_sum            'K4 Nb8 O34 P4 Si'
_chemical_formula_weight         1595.6
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  'P -4 -2'
_symmetry_space_group_name_H-M   'P -4 m 2'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            1
_cell_length_a                   10.6050(9)
_cell_length_b                   10.6050(9)
_cell_length_c                   6.4099(5)
_cell_volume                     720.90(10)
_diffrn_radiation_type           Mo
_diffrn_radiation_wavelength     0.71073
_exptl_absorpt_coefficient_mu    3.90
_exptl_crystal_density_diffrn    3.67
_exptl_crystal_F_000             750
_cod_data_source_file            du0309.cif
_cod_data_source_block           du0309a
_cod_original_formula_sum        'K4 Nb8 O34 P4 Si1'
_cod_database_code               2000504
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Nb(1) .500 .18470(10) .20350(10)
Nb(2) .17750(5) .178 .000
Si .500 .500 .000
P .23970(10) .240 .500
K(1) .000 .000 .500
K(2) .000 .500 .2923(8)
K(3) .500 .500 .500
O(1) .500 .000 .261(2)
O(2) .3638(4) .1747(5) .0215(8)
O(3) .3790(4) .2154(5) .4530(7)
O(4) .500 .3819(7) .1450(10)
O(5) .1756(8) .000 .0320(10)
O(6) .1586(4) .1982(4) .3115(6)
