Phosphonoacetic Acid (H~3~AP) and its Salts KH~2~AP.H~2~ O, (NH~4~)H~2~AP, LiH~2~AP, NaH~2~AP.2H~2~ O, K~2~HAP, (NH~4~)~2~HAP, Na~2~HAP.2H~2~ O, (NH~4~)~3~AP.2H~2~ O and Na~3~AP.10H~2~O
Lis, T.; Acta Crystallographica Section C 53 (1997) 28–42; doi:10.1107/S0108270196009390

data_2005888
_publ_section_title
;
 Phosphonoacetic Acid (H~3~AP) and its Salts KH~2~AP.H~2~ O,
 (NH~4~)H~2~AP, LiH~2~AP, NaH~2~AP.2H~2~ O, K~2~HAP, (NH~4~)~2~HAP,
 Na~2~HAP.2H~2~ O, (NH~4~)~3~AP.2H~2~ O and Na~3~AP.10H~2~O
;
_journal_issue                   1
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              28
_journal_page_last               42
_journal_paper_doi               10.1107/S0108270196009390
_journal_volume                  53
_journal_year                    1997
_chemical_formula_moiety         '2Na 1+, (C2 H3 O5 P) 2- , 2H2 O'
_chemical_formula_sum            'C2 H7 Na2 O7 P'
_chemical_formula_weight         220.03
_chemical_name_systematic
;
disodium phosphonoacetate dihydrate
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_cell_angle_alpha                90.
_cell_angle_beta                 101.42(9)
_cell_angle_gamma                90.
_cell_formula_units_Z            8
_cell_length_a                   11.76(2)
_cell_length_b                   6.780(4)
_cell_length_c                   19.64(2)
_cell_measurement_reflns_used    50
_cell_measurement_temperature    297(1)
_cell_measurement_theta_max      13
_cell_measurement_theta_min      10
_cell_volume                     1535(3)
_diffrn_ambient_temperature      297.0(10)
_diffrn_measurement_device       'Kuma KM4 automatic diffractometer'
_diffrn_measurement_method       '\w/2\q scans'
_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  0.0125
_diffrn_reflns_av_sigmaI/netI    0.0309
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            2263
_diffrn_reflns_theta_max         35
_diffrn_reflns_theta_min         2
_diffrn_standards_decay_%        5
_diffrn_standards_interval_count 100
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.467
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.904(4)
_exptl_crystal_density_meas      1.897
_exptl_crystal_density_method
'flotation in CCl~4~/1,2-dibromethane at room temperature'
_exptl_crystal_description       'long plates'
_exptl_crystal_F_000             896
_exptl_crystal_size_max          0.6
_exptl_crystal_size_mid          0.4
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.78
_refine_diff_density_min         -1.15
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_all   1.034
_refine_ls_goodness_of_fit_obs   1.104
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     146
_refine_ls_number_reflns         2250
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.034
_refine_ls_restrained_S_obs      1.104
_refine_ls_R_factor_all          0.0801
_refine_ls_R_factor_obs          0.0513
_refine_ls_shift/esd_max         0.092
_refine_ls_shift/esd_mean        0.008
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.118P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.1532
_refine_ls_wR_factor_obs         0.1371
_reflns_number_observed          1615
_reflns_number_total             2250
_reflns_observed_criterion       >2sigma(I)
_cod_data_source_file            mu1260.cif
_cod_data_source_block           IX
_cod_depositor_comments
;
The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc w =
1/[\s^2^(Fo^2^)+(0.118P)^2^] where P=(Fo^2^+2Fc^2^)/3' was changed to
'calc'. New tag '_refine_ls_weighting_details' was created. The value
of the new tag was set to 'w = 1/[\s^2^(Fo^2^)+(0.118P)^2^] where
P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_cell_volume        1535(4)
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_original_formula_sum        'C2 H7 Na2 O7 P1'
_cod_database_code               2005888