#------------------------------------------------------------------------------
#$Date: 2016-02-14 05:40:26 +0100 (Sun 14 de Feb de 2016) $
#$Revision: 176432 $
#$URL: svn://www.crystallography.net/cod/cif/7/02/08/7020837.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_7020837
loop_
_publ_author_name
'Cai, Weizhao'
'Katrusiak, Andrzej'
_publ_section_title
;
 Structure of the high-pressure phase IV of KH2PO4 (KDP).
;
_journal_issue                   4
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              863
_journal_page_last               866
_journal_paper_doi               10.1039/c2dt32131a
_journal_volume                  42
_journal_year                    2013
_chemical_formula_moiety         'H2 O4 P, K'
_chemical_formula_sum            'H2 K O4 P'
_chemical_formula_weight         136.09
_chemical_name_common            PotassiumDihydrogenPhosphate
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           122
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  'I -4 2bw'
_symmetry_space_group_name_H-M   'I -4 2 d'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.366(4)
_cell_length_b                   7.366(4)
_cell_length_c                   6.8894(18)
_cell_measurement_pressure       1460000
_cell_measurement_reflns_used    760
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      27.82
_cell_measurement_theta_min      4.05
_cell_volume                     373.8(3)
_computing_cell_refinement       'CrysAlis (Oxford Diffraction, 2004)'
_computing_data_collection       'CrysAlis (Oxford Diffraction, 2004)'
_computing_data_reduction        'CrysAlisRED (Oxford Diffraction, 2004)'
_computing_molecular_graphics    'Mercury (Macrae et al., 2008)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.340
_diffrn_measured_fraction_theta_max 0.340
_diffrn_measurement_device_type  'Kuma KM4CCD κ geometry'
_diffrn_measurement_method
;HP omega scans - for more details see:
A. Budzianowski, A. Katrusiak in High-Pressure Crystallography
(Eds.: A. Katrusiak, P. F. McMillan),
Dordrecht: Kluwer Acad. Publ., 2004 pp.157-168
;
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1512
_diffrn_reflns_av_sigmaI/netI    0.0379
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       1
_diffrn_reflns_limit_k_min       -1
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            760
_diffrn_reflns_theta_full        27.82
_diffrn_reflns_theta_max         27.82
_diffrn_reflns_theta_min         4.05
_exptl_absorpt_coefficient_mu    1.703
_exptl_absorpt_correction_T_max  0.5983
_exptl_absorpt_correction_T_min  0.2818
_exptl_absorpt_correction_type   analytical
_exptl_absorpt_process_details
;
Katrusiak, A. (2003). REDSHABS - Program for correcting
reflections intensities for DAC absorption, gasket shadowing
and sample crystal absorption. Adam Mickiewicz University, Poznań.
Katrusiak, A. (2004). Z. Kristallogr. 219, 461-467
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    2.418
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate-shaped
_exptl_crystal_F_000             272
_exptl_crystal_size_max          0.37
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.22
_refine_diff_density_max         0.223
_refine_diff_density_min         -0.197
_refine_diff_density_rms         0.050
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.3(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.135
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     15
_refine_ls_number_reflns         48
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.135
_refine_ls_R_factor_all          0.0423
_refine_ls_R_factor_gt           0.0423
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[σ²(Fo²)+(0.0777P)²+0.2412P] where P=(Fo²+2Fc²)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0984
_refine_ls_wR_factor_ref         0.0984
_reflns_number_gt                48
_reflns_number_total             48
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2dt32131a.txt
_cod_data_source_block           KDP_1.46GPa_CSD-424768
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Tetragonal' changed to 'tetragonal'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_Hall     'I -4 2bw '
_cod_original_sg_symbol_H-M      I-42d
_cod_database_code               7020837
loop_
_symmetry_equiv_pos_as_xyz
'x, y, z'
'-x, -y, z'
'y, -x, -z'
'-y, x, -z'
'-x+1/2, y, -z+3/4'
'x+1/2, -y, -z+3/4'
'-y+1/2, -x, z+3/4'
'y+1/2, x, z+3/4'
'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+1/2'
'-x+1, y+1/2, -z+5/4'
'x+1, -y+1/2, -z+5/4'
'-y+1, -x+1/2, z+5/4'
'y+1, x+1/2, z+5/4'
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
_atom_site_adp_type
_atom_site_occupancy
_atom_site_symmetry_multiplicity
_atom_site_calc_flag
_atom_site_refinement_flags
K1 K 0.0000 0.0000 0.5000 0.0229(12) Uani 1 4 d S
P1 P 0.0000 0.0000 0.0000 0.0199(13) Uani 1 4 d S
O1 O 0.1518(3) 0.0810(6) 0.1280(4) 0.0230(13) Uani 1 1 d .
H1 H 0.1528 0.1918 0.1161 0.02(4) Uiso 0.50 1 calc PR
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_23
_atom_site_aniso_U_13
_atom_site_aniso_U_12
K1 0.0247(16) 0.0247(16) 0.0192(14) 0.000 0.000 0.000
P1 0.0194(17) 0.0194(17) 0.0209(15) 0.000 0.000 0.000
O1 0.0210(19) 0.022(2) 0.0260(16) -0.0039(14) -0.006(3) 0.000(5)
loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
O O 0.0106 0.0060 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
H H 0.0000 0.0000 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
P P 0.1023 0.0942 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
K K 0.2009 0.2494 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle
_geom_angle_site_symmetry_1
_geom_angle_site_symmetry_3
O1 K1 O1 95.31(4) 5 16_444
O1 K1 O1 144.60(13) 5 6_455
O1 K1 O1 95.31(4) 16_444 6_455
O1 K1 O1 95.31(4) 5 15_454
O1 K1 O1 144.60(13) 16_444 15_454
O1 K1 O1 95.31(4) 6_455 15_454
O1 K1 O1 132.88(7) 5 2
O1 K1 O1 67.56(7) 16_444 2
O1 K1 O1 82.22(9) 6_455 2
O1 K1 O1 80.60(9) 15_454 2
O1 K1 O1 80.60(9) 5 4_556
O1 K1 O1 132.88(7) 16_444 4_556
O1 K1 O1 67.56(7) 6_455 4_556
O1 K1 O1 82.22(9) 15_454 4_556
O1 K1 O1 143.46(7) 2 4_556
O1 K1 O1 67.56(7) 5 3_556
O1 K1 O1 82.22(9) 16_444 3_556
O1 K1 O1 80.60(9) 6_455 3_556
O1 K1 O1 132.88(7) 15_454 3_556
O1 K1 O1 143.46(7) 2 3_556
O1 K1 O1 52.63(10) 4_556 3_556
O1 K1 O1 82.22(9) 5 .
O1 K1 O1 80.60(9) 16_444 .
O1 K1 O1 132.88(7) 6_455 .
O1 K1 O1 67.56(7) 15_454 .
O1 K1 O1 52.63(10) 2 .
O1 K1 O1 143.46(7) 4_556 .
O1 K1 O1 143.46(7) 3_556 .
O1 K1 P1 107.70(6) 5 .
O1 K1 P1 72.30(6) 16_444 .
O1 K1 P1 107.70(6) 6_455 .
O1 K1 P1 72.30(6) 15_454 .
O1 K1 P1 26.31(5) 2 .
O1 K1 P1 153.69(5) 4_556 .
O1 K1 P1 153.69(5) 3_556 .
O1 K1 P1 26.31(5) . .
O1 K1 P1 72.30(6) 5 1_556
O1 K1 P1 107.70(6) 16_444 1_556
O1 K1 P1 72.30(6) 6_455 1_556
O1 K1 P1 107.70(6) 15_454 1_556
O1 K1 P1 153.69(5) 2 1_556
O1 K1 P1 26.31(5) 4_556 1_556
O1 K1 P1 26.31(5) 3_556 1_556
O1 K1 P1 153.69(5) . 1_556
P1 K1 P1 180.0 . 1_556
O1 K1 K1 165.77(8) 5 5_455
O1 K1 K1 93.82(9) 16_444 5_455
O1 K1 K1 44.63(7) 6_455 5_455
O1 K1 K1 71.08(9) 15_454 5_455
O1 K1 K1 42.78(5) 2 5_455
O1 K1 K1 101.00(9) 4_556 5_455
O1 K1 K1 124.66(9) 3_556 5_455
O1 K1 K1 88.54(5) . 5_455
P1 K1 K1 64.936(12) . 5_455
P1 K1 K1 115.064(12) 1_556 5_455
O1 K1 K1 71.07(9) 5 13_455
O1 K1 K1 165.77(8) 16_444 13_455
O1 K1 K1 93.82(9) 6_455 13_455
O1 K1 K1 44.63(7) 15_454 13_455
O1 K1 K1 124.66(9) 2 13_455
O1 K1 K1 42.78(5) 4_556 13_455
O1 K1 K1 88.54(5) 3_556 13_455
O1 K1 K1 101.00(9) . 13_455
P1 K1 K1 115.064(12) . 13_455
P1 K1 K1 64.936(12) 1_556 13_455
K1 K1 K1 100.339(10) 5_455 13_455
O1 P1 O1 109.04(11) . 3
O1 P1 O1 110.3(2) . 2
O1 P1 O1 109.04(11) 3 2
O1 P1 O1 109.04(11) . 4
O1 P1 O1 110.3(2) 3 4
O1 P1 O1 109.04(11) 2 4
O1 P1 K1 124.83(12) . 1_554
O1 P1 K1 55.17(12) 3 1_554
O1 P1 K1 124.83(12) 2 1_554
O1 P1 K1 55.17(12) 4 1_554
O1 P1 K1 55.17(12) . .
O1 P1 K1 124.83(12) 3 .
O1 P1 K1 55.17(12) 2 .
O1 P1 K1 124.83(12) 4 .
K1 P1 K1 180.0 1_554 .
P1 O1 K1 139.7(2) . 5
P1 O1 K1 98.52(13) . .
K1 O1 K1 92.60(10) 5 .
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
_geom_bond_site_symmetry_2
K1 O1 2.764(3) 5
K1 O1 2.764(3) 16_444
K1 O1 2.764(3) 6_455
K1 O1 2.764(3) 15_454
K1 O1 2.859(3) 2
K1 O1 2.859(3) 4_556
K1 O1 2.859(3) 3_556
K1 O1 2.859(3) .
K1 P1 3.4447(9) .
K1 P1 3.4447(9) 1_556
K1 K1 4.0656(17) 5_455
K1 K1 4.0656(17) 13_455
P1 O1 1.544(3) .
P1 O1 1.544(3) 3
P1 O1 1.544(3) 2
P1 O1 1.544(3) 4
P1 K1 3.4447(9) 1_554
O1 K1 2.764(3) 5
