3-Triphenylphosphoniopropionate dihydrate
Ng, Seik Weng; Acta Crystallographica Section C 55 (1999) 646–648; doi:10.1107/S0108270198014887

data_2008336
_publ_contact_author
;
     Assoc. Prof. Seik Weng Ng
     Institute of Postgraduate Studies and Research
     University of Malaya
     50603 Kuala Lumpur
     Malaysia
;
_publ_section_title
;
 3-Triphenylphosphoniopropionate dihydrate
;
_journal_issue                   4
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              646
_journal_page_last               648
_journal_paper_doi               10.1107/S0108270198014887
_journal_volume                  55
_journal_year                    1999
_chemical_formula_moiety         'C~21~H~19~O~2~P. 2H~2~O'
_chemical_formula_sum            'C21 H23 O4 P'
_chemical_formula_weight         370.36
_chemical_name_systematic
;
 Triphenylphosphoniopropionate dihydrate
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 98.738(9)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.1250(7)
_cell_length_b                   12.7690(10)
_cell_length_c                   16.428(2)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      10.0
_cell_measurement_theta_min      8.0
_cell_volume                     1891.9(3)
_computing_cell_refinement       'CELDIM (Enraf-Nonius, 1988)'
_computing_data_collection       'CAD-4/PC (Kretschmar, 1994)'
_computing_data_reduction        'XCAD4 (Harms, 1997)'
_computing_molecular_graphics    'ORTEPII (Johnson, 1976)'
_computing_publication_material  SHELXL97
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997b)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997a)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.953
_diffrn_measured_fraction_theta_max 0.953
_diffrn_measurement_device_type  'Enraf-Nonius CAD-4 diffractometer'
_diffrn_measurement_method       '\w 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  0.0262
_diffrn_reflns_av_sigmaI/netI    0.0743
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            3547
_diffrn_reflns_theta_full        24.98
_diffrn_reflns_theta_max         24.98
_diffrn_reflns_theta_min         2.03
_diffrn_standards_decay_%        none
_diffrn_standards_interval_time  60
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.168
_exptl_absorpt_correction_T_max  0.935
_exptl_absorpt_correction_T_min  0.897
_exptl_absorpt_correction_type   '\y scans (North et al., 1968)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.300
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             784
_exptl_crystal_size_max          0.36
_exptl_crystal_size_mid          0.36
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.275
_refine_diff_density_min         -0.517
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.019
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     235
_refine_ls_number_reflns         3325
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.019
_refine_ls_R_factor_all          0.1303
_refine_ls_R_factor_gt           0.0729
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.1116P)^2^+0.5426P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.2145
_reflns_number_gt                1950
_reflns_number_total             3325
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            da1039.cif
_cod_data_source_block           da1039
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc w =
1/[\s^2^(Fo^2^)+(0.1116P)^2^+0.5426P] 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^)+(0.1116P)^2^+0.5426P] 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        1892.0(3)
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               2008336
_cod_database_fobs_code          2008336