Intramolecular six-membered N–H⋯Br and N–H⋯I hydrogen bonding in aromatic amides in the absence of competing interactions
Zhu, Yuan-Yuan; Jiang, Long; Li, Zhan-Ting; CrystEngComm 11 (2009) 235–; doi:10.1039/b814859g

data_7200411
_publ_section_title
;
 Intramolecular six-membered N--H&#x22EF;Br and N--H&#x22EF;I hydrogen
 bonding in aromatic amides in the absence of competing interactions
;
_journal_issue                   2
_journal_name_full               CrystEngComm
_journal_page_first              235
_journal_paper_doi               10.1039/b814859g
_journal_volume                  11
_journal_year                    2009
_chemical_formula_sum            'C26 H19 Br N2 O3'
_chemical_formula_weight         487.34
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                77.792(3)
_cell_angle_beta                 85.614(3)
_cell_angle_gamma                65.372(3)
_cell_formula_units_Z            2
_cell_length_a                   8.292(2)
_cell_length_b                   9.416(3)
_cell_length_c                   15.730(4)
_cell_measurement_reflns_used    2648
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      27.05
_cell_measurement_theta_min      2.43
_cell_volume                     1091.1(5)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_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      296(2)
_diffrn_measured_fraction_theta_full 0.983
_diffrn_measured_fraction_theta_max 0.983
_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  0.0167
_diffrn_reflns_av_sigmaI/netI    0.0327
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            5700
_diffrn_reflns_theta_full        25.05
_diffrn_reflns_theta_max         25.05
_diffrn_reflns_theta_min         2.43
_exptl_absorpt_coefficient_mu    1.915
_exptl_absorpt_correction_T_max  0.7006
_exptl_absorpt_correction_T_min  0.6460
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.483
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             496
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.274
_refine_diff_density_min         -0.533
_refine_diff_density_rms         0.074
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.046
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     289
_refine_ls_number_reflns         3799
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.046
_refine_ls_R_factor_all          0.0448
_refine_ls_R_factor_gt           0.0349
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0420P)^2^+0.4166P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0806
_refine_ls_wR_factor_ref         0.0856
_reflns_number_gt                3230
_reflns_number_total             3799
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b814859g.txt
_cod_data_source_block           080625_0m
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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      P-1
_cod_database_code               7200411