#------------------------------------------------------------------------------
#$Date: 2008-01-26 13:05:32 +0000 (Sat, 26 Jan 2008) $
#$Revision: 19 $
#$URL: svn://www.crystallography.net/cod/cif/2/2003014.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_2003014
_journal_name_full     'Acta Crystallographica, Section B'
_journal_year     1999
_journal_volume     B54
_journal_page_first     459
_journal_page_last     466
;
Sciau Philippe
;
_chemical_formula_sum     'K Nb5 O15 Pb2'
_symmetry_cell_setting     orthorhombic
_symmetry_space_group_name_H-M     'C m 2 m'
_symmetry_space_group_name_Hall     'C -2 -2'
loop_
    _symmetry_equiv_pos_as_xyz
    'x,y,z'
    '-x,y,-z'
    '-x,y,z'
    'x,y,-z'
    '1/2+x,1/2+y,z'
    '1/2-x,1/2+y,-z'
    '1/2-x,1/2+y,z'
    '1/2+x,1/2+y,-z'
_cell_length_a     17.779(2)
_cell_length_b     18.015(2)
_cell_length_c     3.9209(4)
_cell_angle_alpha     90.00000
_cell_angle_beta      90.00000
_cell_angle_gamma     90.00000
_cell_formula_units_Z     4
_cell_measurement_temperature     294
_diffrn_radiation_type     neutron
_diffrn_radiation_wavelength     1.985
loop_
    _atom_site_label
    _atom_site_fract_x
    _atom_site_fract_y
    _atom_site_fract_z
    K(p1) 0.326(2) -0.006(4) 0.5
    K(p2) 0 0.145(4) 0.5
    K(p3) 0.5 0.321(4) 0.5
    Pb(p1) 0.3257(7) 0.0435(8) 0.5
    Pb(p2) -0.0133(16) 0.1965(13) 0.5
    Pb(p3) 0.4725(13) 0.3481(15) 0.5
    Pb/K(c) 0.2560(7) 0.2565(7) 0.5
    Nb(1) 0 0 0
    Nb(2) 0 0.4996(14) 0
    Nb(3) 0.1771(6) 0.1114(7) 0
    Nb(4) 0.3191(6) 0.3983(7) 0
    Nb(5) 0.3937(6) 0.1863(6) 0
    Nb(6) 0.1041(7) 0.3293(7) 0
    O(1) 0 -0.0138(10) 0.5
    O(2) 0.5 -0.0088(13) 0.5
    O(3) 0.1802(7) 0.1013(8) 0.5
    O(4) 0.3075(7) 0.3857(9) 0.5
    O(5) 0.3922(6) 0.1753(8) 0.5
    O(6) 0.1142(7) 0.3047(8) 0.5
    O(7) 0.0784(10) 0.0736(8) 0
    O(8) 0.1401(8) 0.2126(9) 0
    O(9) 0.2154(5) 0.0018(10) 0
    O(10) 0.2845(9) 0.1419(7) 0
    O(11) 0.4191(10) 0.0706(8) 0
    O(12) 0.5 0.2050(11) 0
    O(13) 0 0.2794(10) 0
    O(14) 0.0802(8) 0.4164(10) 0
    O(15) 0.2147(8) 0.3517(9) 0
    O(16) 0.3481(8) 0.2828(9) 0
    O(17) 0.4225(8) 0.4156(9) 0