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_7209874
_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 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 96.379(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.4462(15)
_cell_length_b                   7.2925(11)
_cell_length_c                   20.875(3)
_cell_measurement_reflns_used    4301
_cell_measurement_temperature    190(2)
_cell_measurement_theta_max      28.20
_cell_measurement_theta_min      2.48
_cell_volume                     1429.1(4)
_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  0.0406
_diffrn_reflns_av_sigmaI/netI    0.0389
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            6915
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         1.96
_exptl_absorpt_coefficient_mu    2.250
_exptl_absorpt_correction_T_max  0.8657
_exptl_absorpt_correction_T_min  0.4308
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'bruker's sadabs'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.823
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             760
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.27
_exptl_crystal_size_min          0.07
_refine_diff_density_max         0.682
_refine_diff_density_min         -0.739
_refine_diff_density_rms         0.106
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.052
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     190
_refine_ls_number_reflns         2522
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.052
_refine_ls_R_factor_all          0.0343
_refine_ls_R_factor_gt           0.0316
_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^)+(0.0456P)^2^+0.5044P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0806
_refine_ls_wR_factor_ref         0.0828
_reflns_number_gt                2308
_reflns_number_total             2522
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3ce40192h.txt
_cod_data_source_block           2n3i
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7209874