#------------------------------------------------------------------------------
#$Date: 2015-01-27 20:58:39 +0100 (Tue 27 de Jan de 2015) $
#$Revision: 130149 $
#$URL: svn://www.crystallography.net/cod/cif/1/00/18/1001857.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_1001857
loop_
_publ_author_name
'Benmoussa, A'
'Borel, M M'
'Grandin, A'
'Leclaire, A'
'Raveau, B'
_publ_section_title
;
Structure of mixed-valent titanium silicophosphates, K Ti3 P6 Si2 O25
and Cs Ti3 P6 Si2 O25
;
_journal_coden_ASTM              ACSCEE
_journal_name_full               'Acta Crystallographica C (39,1983-)'
_journal_page_first              936
_journal_page_last               938
_journal_volume                  47
_journal_year                    1991
_chemical_formula_structural     'K Ti3 (Si2 P6 O25)'
_chemical_formula_sum            'K O25 P6 Si2 Ti3'
_chemical_name_systematic
;
Potassium titanium disilicohexaphosphate (1/3/1)
;
_space_group_IT_number           163
_symmetry_cell_setting           trigonal
_symmetry_Int_Tables_number      163
_symmetry_space_group_name_Hall  '-P 3 2c'
_symmetry_space_group_name_H-M   'P -3 1 c'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            2
_cell_length_a                   8.2648(9)
_cell_length_b                   8.2648(9)
_cell_length_c                   17.03799(100)
_cell_volume                     1007.9
_refine_ls_R_factor_all          0.036
_cod_database_code               1001857
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-y,x-y,z
y-x,-x,z
y,x,1/2+z
-x,y-x,1/2+z
x-y,-y,1/2+z
-x,-y,-z
y,y-x,-z
x-y,x,-z
-y,-x,1/2-z
x,x-y,1/2-z
y-x,y,1/2-z
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+ 2 c 0.3333 0.6667 0.25 1. 0 d
Ti1 Ti4+ 4 f 0.3333 0.6667 0.02516(4) 1. 0 d
Ti2 Ti4+ 2 d 0.6667 0.3333 0.25 1. 0 d
P1 P5+ 12 i 0.38255(8) 0.3315(1) 0.11022(4) 1. 0 d
Si1 Si4+ 4 e 0. 0. 0.09281(9) 1. 0 d
O1 O2- 12 i 0.1190(3) 0.5991(3) 0.0953(2) 1. 0 d
O2 O2- 12 i 0.8132(3) 0.2566(3) 0.4576(1) 1. 0 d
O3 O2- 12 i 0.4784(3) 0.3386(4) 0.1865(1) 1. 0 d
O4 O2- 2 b 0. 0. 0. 1. 0 d
O5 O2- 12 i 0.0235(3) 0.8310(3) 0.1264(1) 1. 0 d
loop_
_atom_type_symbol
_atom_type_oxidation_number
K1+ 1.000
Ti4+ 3.500
P5+ 5.000
Si4+ 4.000
O2- -2.000
