Crystal structure of 1-(4,6-dimethylpyrimidin-2-yl)benzimidazole, C13H12N4
Hong-Mei Li; Chen Xu; Hu Liu; Zhi-Qiang Zhang; Jing-Cai Yao; Yu-Qing Zhang; Zeitschrift für Kristallographie - New Crystal Structures 226 (2011) 89–; doi:

data_8103097
_publ_section_title
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 Crystal structure of 1-(4,6-dimethylpyrimidin-2-yl)benzimidazole,
 C13H12N4
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_journal_issue                   1
_journal_name_full
'Zeitschrift f\"ur Kristallographie - New Crystal Structures'
_journal_page_first              89
_journal_volume                  226
_journal_year                    2011
_chemical_formula_sum            'C13 H12 N4'
_chemical_formula_weight         224.27
_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                 90.649(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.6824(14)
_cell_length_b                   17.542(3)
_cell_length_c                   7.5710(12)
_cell_measurement_reflns_used    1124
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      20.29
_cell_measurement_theta_min      2.32
_cell_volume                     1153.0(3)
_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 0.999
_diffrn_measured_fraction_theta_max 0.999
_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  0.0391
_diffrn_reflns_av_sigmaI/netI    0.0370
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            8476
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         25.50
_diffrn_reflns_theta_min         2.32
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.082
_exptl_absorpt_correction_T_max  0.9935
_exptl_absorpt_correction_T_min  0.9799
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.292
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             472
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.19
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.156
_refine_diff_density_min         -0.137
_refine_diff_density_rms         0.032
_refine_ls_extinction_coef       0.014(2)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.023
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     155
_refine_ls_number_reflns         2143
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.023
_refine_ls_R_factor_all          0.0784
_refine_ls_R_factor_gt           0.0429
_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^)+(0.0479P)^2^+0.0852P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0949
_refine_ls_wR_factor_ref         0.1107
_reflns_number_gt                1364
_reflns_number_total             2143
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            1267-3293.cff
_cod_data_source_block           a
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               8103097