Evaluation of viability of halogen⋯O2N interactions: Insight from crystal packing in a series of isomeric halo and nitro substituted triaryl compounds with modular positioning of halogen and NO2 groups
Ramana, C. V.; Goriya, Yogesh; Durugkar, Kulbhushan A.; Chatterjee, Soumitra; Krishnaswamy, Shobhana; Gonnade, Rajesh G.; CrystEngComm 15 (2013) 5283–; doi:10.1039/c3ce40192h

data_7209879
_publ_section_title
;
 Evaluation of viability of halogen&#x22EF;O2N interactions: Insight from
 crystal packing in a series of isomeric halo and nitro substituted
 triaryl compounds with modular positioning of halogen and NO2 groups
;
_journal_issue                   26
_journal_name_full               CrystEngComm
_journal_page_first              5283
_journal_paper_doi               10.1039/c3ce40192h
_journal_volume                  15
_journal_year                    2013
_chemical_formula_moiety         'C14 H9 I N4 O2'
_chemical_formula_sum            'C14 H9 I N4 O2'
_chemical_formula_weight         392.15
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_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                 96.660(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.1884(8)
_cell_length_b                   11.9850(13)
_cell_length_c                   16.2685(17)
_cell_measurement_reflns_used    4280
_cell_measurement_temperature    190(2)
_cell_measurement_theta_max      27.71
_cell_measurement_theta_min      2.52
_cell_volume                     1392.1(3)
_computing_cell_refinement       'SAINT (Bruker, 2003)'
_computing_data_collection       'SMART (Bruker, 2003)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    'ORTEP-3 (Farrugia, 1997)'
_computing_publication_material  'SHELXTL (Bruker, 2003)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      190(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker Smart APEX'
_diffrn_measurement_method       'Phi and Omega Scan'
_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  0.0392
_diffrn_reflns_av_sigmaI/netI    0.0255
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            13158
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.12
_exptl_absorpt_coefficient_mu    2.310
_exptl_absorpt_correction_T_max  0.9795
_exptl_absorpt_correction_T_min  0.7261
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'bruker's sadabs'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.871
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             760
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.01
_refine_diff_density_max         0.658
_refine_diff_density_min         -0.368
_refine_diff_density_rms         0.083
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.150
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     190
_refine_ls_number_reflns         2457
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.150
_refine_ls_R_factor_all          0.0418
_refine_ls_R_factor_gt           0.0345
_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^)+(0.0362P)^2^+0.5226P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0776
_refine_ls_wR_factor_ref         0.0812
_reflns_number_gt                2129
_reflns_number_total             2457
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3ce40192h.txt
_cod_data_source_block           4n2i
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               7209879