The crystal structures of chloro and methyl ortho-benzoic acids and their co-crystal: rationalizing similarities and differences
Polito, Marco; D'Oria, Emiliana; Maini, Lucia; Karamertzanis, Panagiotis G.; Grepioni, Fabrizia; Braga, Dario; Price, Sarah L.; CrystEngComm 10 (2008) 1848–; doi:10.1039/b811438b

data_7202389
_publ_section_title
;
 The crystal structures of chloro and methyl ortho-benzoic acids and
 their co-crystal: rationalizing similarities and differences
;
_journal_issue                   12
_journal_name_full               CrystEngComm
_journal_page_first              1848
_journal_paper_doi               10.1039/b811438b
_journal_volume                  10
_journal_year                    2008
_chemical_formula_sum            'C7 H5 Cl O2'
_chemical_formula_weight         156.56
_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'
_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                 101.146(11)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   14.6382(16)
_cell_length_b                   3.8142(6)
_cell_length_c                   23.812(3)
_cell_measurement_reflns_used    1724
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      28.7440
_cell_measurement_theta_min      2.6110
_cell_volume                     1304.4(3)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.904
_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  0.0332
_diffrn_reflns_av_sigmaI/netI    0.0395
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       4
_diffrn_reflns_limit_k_min       -4
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            2978
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.84
_exptl_absorpt_coefficient_mu    0.500
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.91630
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.594
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             640
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.316
_refine_diff_density_min         -0.285
_refine_diff_density_rms         0.058
_refine_ls_extinction_coef       0.0071(12)
_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   0.994
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     96
_refine_ls_number_reflns         1146
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.994
_refine_ls_R_factor_all          0.0588
_refine_ls_R_factor_gt           0.0455
_refine_ls_shift/su_max          0.091
_refine_ls_shift/su_mean         0.012
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0813P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1116
_refine_ls_wR_factor_ref         0.1185
_reflns_number_gt                955
_reflns_number_total             1146
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b811438b.txt
_cod_data_source_block           o-clbz-150k
_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 
;
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               7202389