Synthesis, structural, and magnetic characterization of substituted benzoimidazole-l-yl N,N?-dioxides
Zakrassov, Alexander; Shteiman, Vitaly; Sheynin, Yana; Tumanskii, Boris; Botoshansky, Mark; Kapon, Moshe; Keren, Amit; Kaftory, Menahem; Vos, Thomas E.; Miller, Joel S.; Journal of Materials Chemistry 14 (2004) 1827–; doi:10.1039/b400299g

data_7204840
_publ_section_title
;
 Synthesis, structural, and magnetic characterization of substituted
 benzoimidazole-l-yl N,N?-dioxides
;
_journal_issue                   12
_journal_name_full               'Journal of Materials Chemistry'
_journal_page_first              1827
_journal_paper_doi               10.1039/b400299g
_journal_volume                  14
_journal_year                    2004
_chemical_formula_moiety         'C13 H4 F5 N2 O2'
_chemical_formula_sum            'C13 H4 F5 N2 O2'
_chemical_formula_weight         315.18
_chemical_name_systematic
;
2-(2,3,4,5,6-pentafluorophenyl)benzimidazolyl-N,N'-dioxide
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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                 100.69(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   22.536(5)
_cell_length_b                   7.868(2)
_cell_length_c                   13.760(2)
_cell_measurement_reflns_used    3643
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.38
_cell_measurement_theta_min      1.51
_cell_volume                     2397.5(9)
_computing_cell_refinement       'DENZO SMN (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Nonius, 2001)'
_computing_data_reduction        'DENZO SMN (Otwinowski & Minor 1997)'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.870
_diffrn_measured_fraction_theta_max 0.99
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       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  0.0551
_diffrn_reflns_av_sigmaI/netI    0.0940
_diffrn_reflns_limit_h_max       28
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            4241
_diffrn_reflns_theta_full        25.0
_diffrn_reflns_theta_max         27.38
_diffrn_reflns_theta_min         1.84
_exptl_absorpt_coefficient_mu    0.171
_exptl_absorpt_correction_T_max  0.9983
_exptl_absorpt_correction_T_min  0.9747
_exptl_absorpt_correction_type   none
_exptl_absorpt_process_details   none
_exptl_crystal_colour            'dark brown'
_exptl_crystal_density_diffrn    1.746
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1256
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.01
_refine_diff_density_max         0.140
_refine_diff_density_min         -0.153
_refine_diff_density_rms         0.038
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.814
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     196
_refine_ls_number_reflns         2373
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.814
_refine_ls_R_factor_all          0.1275
_refine_ls_R_factor_gt           0.0422
_refine_ls_shift/su_max          0.007
_refine_ls_shift/su_mean         0.002
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0469P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0860
_refine_ls_wR_factor_ref         0.1027
_reflns_number_gt                1018
_reflns_number_total             2373
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b400299g.txt
_cod_data_source_block           pentaf
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               7204840