Mechanically Flexible Organic Crystals Achieved by Introducing Weak Interactions in Structure: Supramolecular Shape Synthons.
Krishna, Gamidi Rama; Devarapalli, Ramesh; Lal, Garima; Reddy, C. Malla; Journal of the American Chemical Society 138 (2016) 13561–13567; doi:10.1021/jacs.6b05118

data_4130597
_publ_section_title
;
 Mechanically Flexible Organic Crystals Achieved by Introducing Weak
 Interactions in Structure: Supramolecular Shape Synthons.
;
_journal_issue                   41
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              13561
_journal_page_last               13567
_journal_paper_doi               10.1021/jacs.6b05118
_journal_volume                  138
_journal_year                    2016
_chemical_formula_moiety         'C7 H4 Cl2 O2'
_chemical_formula_sum            'C7 H4 Cl2 O2'
_chemical_formula_weight         191.00
_chemical_name_common            '3,4-dichloro benzoic acid'
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_H-M   'P 1 21/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                 90.871(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   3.7527(7)
_cell_length_b                   6.2589(13)
_cell_length_c                   30.957(6)
_cell_measurement_reflns_used    1831
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      28.58
_cell_measurement_theta_min      2.63
_cell_volume                     727.0(2)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker Kappa APEX-II CCD DUO'
_diffrn_measurement_method       '\ f and \ 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  0.0368
_diffrn_reflns_av_sigmaI/netI    0.0344
_diffrn_reflns_limit_h_max       4
_diffrn_reflns_limit_h_min       -3
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       40
_diffrn_reflns_limit_l_min       -40
_diffrn_reflns_number            6696
_diffrn_reflns_theta_full        28.00
_diffrn_reflns_theta_max         28.00
_diffrn_reflns_theta_min         2.63
_exptl_absorpt_coefficient_mu    0.828
_exptl_absorpt_correction_T_max  0.928
_exptl_absorpt_correction_T_min  0.888
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS; BRUKER, 2008'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.745
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Needle
_exptl_crystal_F_000             384
_exptl_crystal_size_max          0.59
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.860
_refine_diff_density_min         -0.523
_refine_diff_density_rms         0.101
_refine_ls_extinction_coef       0.011(5)
_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   1.087
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     105
_refine_ls_number_reflns         1743
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.087
_refine_ls_R_factor_all          0.0616
_refine_ls_R_factor_gt           0.0522
_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^)+(0.1000P)^2^+0.9300P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1556
_refine_ls_wR_factor_ref         0.1617
_reflns_number_gt                1526
_reflns_number_total             1743
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja6b05118_si_011.cif
_cod_data_source_block           2b
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_symmetry_cell_setting' value 'Monoclinic' was changed to
'monoclinic' in accordance with the
/home/saulius/struct/COD-crude-data/automatic-downloads/DataCite-retrospective/ACS/depositions/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_original_cell_volume        727.0(3)
_cod_original_sg_symbol_H-M      'P 21/c  '
_cod_database_code               4130597