#------------------------------------------------------------------------------
#$Date: 2016-02-13 21:28:24 +0200 (Sat, 13 Feb 2016) $
#$Revision: 176429 $
#$URL: svn://www.crystallography.net/cod/cif/1/52/49/1524913.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_1524913
loop_
_publ_author_name
'McMurdie, H.F.'
_publ_section_title
;
 X-ray studies of compounds in the system Pb O - B2 O3 and K2 O - Pb O -
 Si O2
;
_journal_name_full
'Journal of Research of the National Bureau of Standards'
_journal_page_first              489
_journal_page_last               494
_journal_volume                  26
_journal_year                    1941
_chemical_formula_sum            'K2 O Pb2 Si2'
_chemical_name_systematic        'K2 Pb2 (Si2 O7)'
_space_group_IT_number           147
_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            1
_cell_length_a                   5.63
_cell_length_b                   5.63
_cell_length_c                   7.59
_cell_volume                     208.348
_citation_journal_id_ASTM        JRNBAG
_cod_data_source_file            McMurdie_JRNBAG_1941_77.cif
_cod_data_source_block           K2O1Pb2Si2
_cod_original_cell_volume        208.3479
_cod_original_formula_sum        'K2 O1 Pb2 Si2'
_cod_database_code               1524913
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-y,x-y,z
-x+y,-x,z
-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
Si1 Si+4 0 0 0.28 1 0.0
O1 O-2 0 0 0.5 1 0.0
K1 K+1 0.3333 0.6667 0.5 1 0.0
Pb1 Pb+2 0.3333 0.6667 0 1 0.0
