The NH···X (X = Cl, Br, and I) Hydrogen-Bonding Pattern in Aromatic Amides: A Crystallographic and1H NMR Study
Zhu, Yuan-Yuan; Yi, Hui-Ping; Li, Chuang; Jiang, Xi-Kui; Li, Zhan-Ting; Crystal Growth & Design 8 (2008) 1294–; doi:10.1021/cg7010293

data_4503372
_publ_section_title
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 The N&#xE5F8;H&#x00B7;&#x00B7;&#x00B7;X (X = Cl, Br, and I)
 Hydrogen-Bonding Pattern in Aromatic Amides: A Crystallographic and1H NMR
 Study
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_journal_issue                   4
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              1294
_journal_paper_doi               10.1021/cg7010293
_journal_volume                  8
_journal_year                    2008
_chemical_formula_sum            'C13 H10 Cl2 N2 O'
_chemical_formula_weight         281.13
_space_group_IT_number           9
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'C -2yc'
_symmetry_space_group_name_H-M   'C 1 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                 95.384(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            12
_cell_length_a                   9.5284(16)
_cell_length_b                   40.632(7)
_cell_length_c                   9.8789(16)
_cell_measurement_reflns_used    635
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      36.462
_cell_measurement_theta_min      5.243
_cell_volume                     3807.8(11)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.934
_diffrn_measured_fraction_theta_max 0.934
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0856
_diffrn_reflns_av_sigmaI/netI    0.2133
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       52
_diffrn_reflns_limit_k_min       -47
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            11550
_diffrn_reflns_theta_full        28.25
_diffrn_reflns_theta_max         28.25
_diffrn_reflns_theta_min         2.00
_exptl_absorpt_coefficient_mu    0.499
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.65398
_exptl_absorpt_correction_type   empirical
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.471
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             1728
_exptl_crystal_size_max          0.455
_exptl_crystal_size_mid          0.308
_exptl_crystal_size_min          0.147
_refine_diff_density_max         0.273
_refine_diff_density_min         -0.254
_refine_diff_density_rms         0.055
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.763
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     488
_refine_ls_number_reflns         7203
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      0.763
_refine_ls_R_factor_all          0.1820
_refine_ls_R_factor_gt           0.0594
_refine_ls_shift/su_max          0.090
_refine_ls_shift/su_mean         0.032
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0487P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1215
_refine_ls_wR_factor_ref         0.1774
_reflns_number_gt                2227
_reflns_number_total             7203
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg7010293-file001.cif
_cod_data_source_block           cd2471
_cod_depositor_comments
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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 
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_cod_original_sg_symbol_H-M      Cc
_cod_original_formula_sum        'C13 H10  N2 O Cl2'
_cod_database_code               4503372