Hydrogen bonding in enantiomeric <i>versus</i> racemic mono-carboxylic acids; a case study of 2-phenoxypropionic acid
Sørensen, Henning Osholm; Larsen, Sine; Acta Crystallographica Section B 59 (2003) 132–140; doi:10.1107/S0108768102022085

data_2103854
_publ_section_title
;
 Hydrogen bonding in enantiomeric <i>versus</i> racemic mono-carboxylic
 acids; a case study of 2-phenoxypropionic acid
;
_journal_issue                   1
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              132
_journal_page_last               140
_journal_paper_doi               10.1107/S0108768102022085
_journal_volume                  59
_journal_year                    2003
_chemical_formula_moiety         'C9 H10 O3'
_chemical_formula_sum            'C9 H10 O3'
_chemical_formula_weight         166.17
_chemical_melting_point          359
_chemical_name_systematic
;
R-(+)-2-phenoxypropionic acid
;
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           'SHELXL-97 and manual editing'
_cell_angle_alpha                90.00
_cell_angle_beta                 92.031(16)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   8.5312(15)
_cell_length_b                   4.8321(8)
_cell_length_c                   10.125(2)
_cell_measurement_reflns_used    20
_cell_measurement_temperature    122.4(5)
_cell_measurement_theta_max      40.23
_cell_measurement_theta_min      39.26
_cell_volume                     417.13(13)
_computing_cell_refinement       'Enraf-Nonius Express'
_computing_data_collection       'Enraf-Nonius Express'
_computing_data_reduction        'DREADD (Blessing, 1987)'
_computing_molecular_graphics    'ORTEPII (Johnson, 1976)'
_computing_publication_material  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      122.4(5)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Enraf-Nonius CAD4'
_diffrn_measurement_method       \w--2\q
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0100
_diffrn_reflns_av_sigmaI/netI    0.0092
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            3609
_diffrn_reflns_theta_full        74.93
_diffrn_reflns_theta_max         74.93
_diffrn_reflns_theta_min         4.37
_diffrn_standards_decay_%        0
_diffrn_standards_interval_time  166.7
_diffrn_standards_number         5
_exptl_absorpt_coefficient_mu    0.828
_exptl_absorpt_correction_T_max  0.954
_exptl_absorpt_correction_T_min  0.770
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   '(DeTitta, 1985)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.323
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             176
_exptl_crystal_size_max          0.48
_exptl_crystal_size_mid          0.21
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.147
_refine_diff_density_min         -0.129
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.03(13)
_refine_ls_extinction_coef       0.043(2)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.047
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     150
_refine_ls_number_reflns         1714
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.047
_refine_ls_R_factor_all          0.0222
_refine_ls_R_factor_gt           0.0220
_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/[\s^2^(Fo^2^)+(0.0357P)^2^+0.0553P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      sigma
_refine_ls_wR_factor_gt          0.0583
_refine_ls_wR_factor_ref         0.0584
_reflns_number_gt                1697
_reflns_number_total             1714
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            os0103.cif
_cod_data_source_block           pure
_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:

'_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_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_cell_volume        417.14(14)
_cod_original_sg_symbol_H-M      'P 21'
_cod_database_code               2103854