A monoclinic polymorph of 4,6-diphenylpyrimidin-2-ylamine
Hoong-Kun Fun; Shyamaprosad Goswami; Subrata Jana; Suchada Chantrapromma; Acta Crystallographica Section E 62 (2006) o5332–o5334; doi:10.1107/S160053680604390X

data_2211115
_publ_section_title
;
 A monoclinic polymorph of 4,6-diphenylpyrimidin-2-ylamine
;
_journal_coeditor_code           LH2210
_journal_issue                   11
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o5332
_journal_page_last               o5334
_journal_paper_doi               10.1107/S160053680604390X
_journal_volume                  62
_journal_year                    2006
_chemical_formula_iupac          'C16 H13 N3'
_chemical_formula_moiety         'C16 H13 N3'
_chemical_formula_sum            'C16 H13 N3'
_chemical_formula_weight         247.29
_chemical_melting_point          407.5(5)
_chemical_name_common
;
4,6-Diphenyl-pyrimidin-2-yl-amine
;
_chemical_name_systematic
;
4,6-Diphenylpyrimidin-2-ylamine
;
_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                 123.413(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   18.8775(6)
_cell_length_b                   7.3316(2)
_cell_length_c                   21.3634(7)
_cell_measurement_reflns_used    4351
_cell_measurement_temperature    100.00(10)
_cell_measurement_theta_max      25.00
_cell_measurement_theta_min      1.29
_cell_volume                     2468.06(14)
_computing_cell_refinement       APEX2
_computing_data_collection       'APEX2 (Bruker, 2005)'
_computing_data_reduction        'SAINT (Bruker, 2005)'
_computing_molecular_graphics    SHELXTL
_computing_publication_material
;
SHELXTL and PLATON (Spek, 2003)
;
_computing_structure_refinement  SHELXTL
_computing_structure_solution    'SHELXTL (Sheldrick, 1998)'
_diffrn_ambient_temperature      297(2)
_diffrn_detector_area_resol_mean 8.33
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type
;
Bruker SMART APEX2 CCD area-detector
;
_diffrn_measurement_method       \w
_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  0.1282
_diffrn_reflns_av_sigmaI/netI    0.0943
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            22973
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.29
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.081
_exptl_absorpt_correction_T_max  0.9942
_exptl_absorpt_correction_T_min  0.9890
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2005)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.331
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             1040
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.11
_exptl_crystal_size_min          0.07
_refine_diff_density_max         0.779
_refine_diff_density_min         -0.425
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.999
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     359
_refine_ls_number_reflns         4351
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.999
_refine_ls_R_factor_all          0.1691
_refine_ls_R_factor_gt           0.0882
_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^)+(0.1711P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2184
_refine_ls_wR_factor_ref         0.2936
_reflns_number_gt                2205
_reflns_number_total             4351
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            lh2210.cif
_cod_data_source_block           I
_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_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_chemical_melting_point' value '407-408' was changed to '407.5(5)' -
the average value was taken and precision was estimated.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 

The following automatic conversions were performed:

'_chemical_melting_point' value '407-408' was changed to '407.5(5)' -
the average value was taken and precision was
estimated.

'_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      'P 21/c'
_cod_database_code               2211115
_cod_database_fobs_code          2211115