Ditopic halogen bonding with bipyrimidines and activated pyrimidines
Nwachukwu, Chideraa I.; Patton, Leanna J.; Bowling, Nathan P.; Bosch, Eric; Acta Crystallographica Section C 76 (2020) –; doi:10.1107/S2053229620005082

data_2022092
_publ_section_title
;
 Ditopic halogen bonding with bipyrimidines and activated pyrimidines
;
_journal_coeditor_code           FN3332
_journal_issue                   5
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first
;
;
_journal_paper_doi               10.1107/S2053229620005082
_journal_volume                  76
_journal_year                    2020
_chemical_formula_iupac          'C8 H6 N4, C6 F4 I2'
_chemical_formula_moiety         'C8 H6 N4, C6 F4 I2'
_chemical_formula_sum            'C14 H6 F4 I2 N4'
_chemical_formula_weight         560.03
_chemical_name_systematic
'5,5'-Bipyrimidine--1,2,3,5-tetrafluoro-4,6-diiodobenzene (1/1)'
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL2018
_cell_angle_alpha                90
_cell_angle_beta                 100.0690(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   10.4617(10)
_cell_length_b                   6.4681(6)
_cell_length_c                   23.966(2)
_cell_measurement_reflns_used    6501
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.12
_cell_measurement_theta_min      2.84
_cell_volume                     1596.7(3)
_computing_cell_refinement
;
SMART (Bruker, 2016)
;
_computing_data_collection
;
SMART (Bruker, 2016)
;
_computing_data_reduction
;
SAINT (Bruker, 2016)
;
_computing_molecular_graphics
;
X-SEED (Barbour, 2001)
;
_computing_publication_material
;
X-SEED (Barbour, 2001)
;
_computing_structure_refinement
;
SHELXL2018 (Sheldrick, 2015b)
;
_computing_structure_solution
;
SHELXT2018 (Sheldrick, 2015a)
;
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 8.3660
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker APEXII CCD'
_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  0.0387
_diffrn_reflns_av_unetI/netI     0.0272
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            18558
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.195
_diffrn_reflns_theta_min         1.726
_exptl_absorpt_coefficient_mu    3.985
_exptl_absorpt_correction_T_max  0.699
_exptl_absorpt_correction_T_min  0.345
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
(SADABS; Bruker, 2016)
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    2.330
_exptl_crystal_description       cut
_exptl_crystal_F_000             1040
_exptl_crystal_size_max          0.444
_exptl_crystal_size_mid          0.231
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.939
_refine_diff_density_min         -0.998
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.180
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     217
_refine_ls_number_reflns         3557
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.180
_refine_ls_R_factor_all          0.0335
_refine_ls_R_factor_gt           0.0293
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0041P)^2^+4.7300P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0502
_refine_ls_wR_factor_ref         0.0512
_reflns_number_gt                3283
_reflns_number_total             3557
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            fn3332sup1.cif
_cod_data_source_block           2_eb843_a
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2022092
_cod_database_fobs_code          2022092
_shelx_hkl_checksum              62812
_shelx_res_checksum              40854