#------------------------------------------------------------------------------
#$Date: 2017-09-03 02:49:29 +0200 (Sun 03 de Sep de 2017) $
#$Revision: 200140 $
#$URL: svn://www.crystallography.net/cod/cif/1/00/61/1006112.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_1006112
loop_
_publ_author_name
'Salvadó, M. A.'
'Pertierra, P.'
'García-Granda, S.'
'García, J. R.'
'Rodríguez, J.'
'Fernández-Díaz, M. T.'
_publ_section_title
;
 Neutron powder diffraction study of α-Ti(HPO₄)₂.(H₂O) and
 α-Hf(HPO₄)₂.(H₂O); H-atom positions
;
_journal_coden_ASTM              ASBSDK
_journal_issue                   5
_journal_name_full
;
 Acta Crystallographica, Section B: Structural Science
;
_journal_page_first              896
_journal_page_last               898
_journal_paper_doi               10.1107/s0108768196006702
_journal_volume                  52
_journal_year                    1996
_chemical_formula_structural     'Hf (H P O4)2 (H2 O)'
_chemical_formula_sum            'H4 Hf O9 P2'
_chemical_name_systematic
;
Hafnium bis(hydrogenphosphate(V)) hydrate - α
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_cell_angle_alpha                90
_cell_angle_beta                 111.234(4)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.9955(5)
_cell_length_b                   5.2439(3)
_cell_length_c                   16.224(1)
_cell_volume                     713.4
_refine_ls_R_factor_all          0.009
_cod_database_code               1006112
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-x,1/2+y,1/2-z
-x,-y,-z
x,1/2-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
Hf1 Hf4+ 4 e 0.7373(8) 0.2519(19) 0.4853(4) 1. 0 d
P1 P5+ 4 e -0.0238(11) 0.753(3) 0.6095(5) 1. 0 d
P2 P5+ 4 e 0.4976(12) 0.234(2) 0.6129(5) 1. 0 d
O1 O2- 4 e 0.1231(12) 0.813(2) 0.5968(6) 1. 0 d
O2 O2- 4 e -0.0830(11) 0.472(2) 0.5713(6) 1. 0 d
O3 O2- 4 e 0.8339(12) 0.939(2) 0.5610(7) 1. 0 d
O4 O2- 4 e 0.0120(9) 0.746(2) 0.7067(5) 1. 1 d
O5 O2- 4 e 0.3639(12) 0.447(2) 0.5901(7) 1. 0 d
O6 O2- 4 e 0.4287(14) -0.017(2) 0.5955(7) 1. 0 d
O7 O2- 4 e 0.5981(10) 0.303(2) 0.5571(6) 1. 0 d
O8 O2- 4 e 0.6004(10) 0.259(2) 0.7110(5) 1. 1 d
O9 O2- 4 e 0.2370(15) 0.222(2) 0.7406(7) 1. 2 d
H1 H1+ 4 e -0.100(2) 0.811(4) 0.7167(15) 1. 0 d
H2 H1+ 4 e 0.659(3) 0.076(4) 0.7282(16) 1. 0 d
H3 H1+ 4 e 0.294(3) 0.079(4) 0.763(2) 1. 0 d
H4 H1+ 4 e 0.212(2) 0.221(5) 0.6681(10) 1. 0 d
loop_
_atom_type_symbol
_atom_type_oxidation_number
Hf4+ 4.000
P5+ 5.000
O2- -2.000
H1+ 1.000
