Solvent-dependent polymorphism in isomeric <i>N</i>-(nitrobenzylidene)iodoanilines
Ferguson, George; Glidewell, Christopher; Low, John N.; Skakle, Janet M. S.; Wardell, James L.; Acta Crystallographica Section C 61 (2005) o445–o449; doi:10.1107/S0108270105016239

data_2015048
_publ_section_title
;
 Solvent-dependent polymorphism in isomeric
 <i>N</i>-(nitrobenzylidene)iodoanilines
;
_journal_issue                   7
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              o445
_journal_page_last               o449
_journal_paper_doi               10.1107/S0108270105016239
_journal_volume                  61
_journal_year                    2005
_chemical_formula_iupac          'C13 H9 I N2 O2'
_chemical_formula_moiety         'C13 H9 I N2 O2'
_chemical_formula_sum            'C13 H9 I N2 O2'
_chemical_formula_weight         352.12
_chemical_name_systematic
;
2-iodo-N-(3-nitrobenzylidene)aniline
;
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 97.8490(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.6830(7)
_cell_length_b                   14.9491(8)
_cell_length_c                   6.8707(4)
_cell_measurement_reflns_used    4608
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      32.53
_cell_measurement_theta_min      2.12
_cell_volume                     1290.48(12)
_computing_cell_refinement       'SAINT (Bruker, 2000)'
_computing_data_collection       'SMART (Bruker, 1998)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    'PLATON (Spek, 2003)'
_computing_publication_material  'SHELXL97 and  PRPKAPPA (Ferguson, 1999)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.982
_diffrn_measurement_device_type  'Bruker SMART 1000 CCD area-detector'
_diffrn_measurement_method       '\f and \w'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed X-ray tube'
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0642
_diffrn_reflns_av_sigmaI/netI    0.0574
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            13098
_diffrn_reflns_theta_full        30.50
_diffrn_reflns_theta_max         32.53
_diffrn_reflns_theta_min         2.12
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    2.476
_exptl_absorpt_correction_T_max  0.672
_exptl_absorpt_correction_T_min  0.455
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2000)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.812
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             680
_exptl_crystal_size_max          0.36
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.16
_refine_diff_density_max         0.788
_refine_diff_density_min         -0.902
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.894
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     163
_refine_ls_number_reflns         4608
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.894
_refine_ls_R_factor_all          0.0893
_refine_ls_R_factor_gt           0.0388
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.0348P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0685
_refine_ls_wR_factor_ref         0.0819
_reflns_number_gt                2450
_reflns_number_total             4608
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            sk1846.cif
_cod_data_source_block           II
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2015048
_cod_database_fobs_code          2015048