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#$Date: 2008-01-26 15:05:32 +0200 (Sat, 26 Jan 2008) $
#$Revision: 19 $
#$URL: file:///home/coder/svn-repositories/cod/cif/1/1007253.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_1007253
_chemical_name_systematic          'Dipotassium strontium catena-phosphate(V)'
_chemical_formula_structural       'K2 Sr (P O3)4'
_chemical_formula_sum              'K2 O12 P4 Sr'
_publ_section_title
;
Structure cristalline du tetrametaphosphate de strontium-potassium: Sr
K2 (P O3)4
;
loop_
_publ_author_name
  'Tordjman, I'
  'Martin, C'
  'Durif, A'
_journal_name_full
;
Bulletin de la Societe Francaise de Mineralogie et de Cristallographie
(72,1949-100,1977)
;
_journal_coden_ASTM                BUFCAE
_journal_volume                    90
_journal_year                      1967
_journal_page_first                293
_journal_page_last                 298
_cell_length_a                     7.445(5)
_cell_length_b                     7.445
_cell_length_c                     10.17(2)
_cell_angle_alpha                  90
_cell_angle_beta                   90
_cell_angle_gamma                  90
_cell_volume                       563.7
_cell_formula_units_Z              2
_symmetry_space_group_name_H-M     'I -4'
_symmetry_Int_Tables_number        82
_symmetry_cell_setting             tetragonal
loop_
_symmetry_equiv_pos_as_xyz
  'x,y,z'
  '-x,-y,z'
  'y,-x,-z'
  '-y,x,-z'
  '1/2+x,1/2+y,1/2+z'
  '1/2-x,1/2-y,1/2+z'
  '1/2+y,1/2-x,1/2-z'
  '1/2-y,1/2+x,1/2-z'
loop_
_atom_type_symbol
_atom_type_oxidation_number
  K1+    1.000
  Sr2+   2.000
  P5+    5.000
  O2-   -2.000
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_symmetry_multiplicity
_atom_site_Wyckoff_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_attached_hydrogens
_atom_site_calc_flag
  K1    K1+    4 e 0. 0. 0.328 1.  0 d
  Sr1   Sr2+   2 c 0. 0.5 0.25 1.  0 d
  P1    P5+    8 g 0.154 0.217 -0.03 1.  0 d
  O1    O2-    8 g 0.186 0.06 0.066 1.  0 d
  O2    O2-    8 g 0.193 0.385 0.048 1.  0 d
  O3    O2-    8 g 0.24 0.189 -0.16 1.  0 d
_refine_ls_R_factor_all            0.07