5-(2-Bromophenyl)-1,3,4-thiadiazol-2-amine
Yin, Li-He; Wan, Rong; Wang, Yao; Han, Feng; Wang, Jin-Tang; Acta Crystallographica Section E 64 (2008) o1884–; doi:10.1107/S1600536808027827

data_2219608
_publ_section_title
;
 5-(2-Bromophenyl)-1,3,4-thiadiazol-2-amine
;
_journal_coeditor_code           HK2522
_journal_issue                   10
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1884
_journal_paper_doi               10.1107/S1600536808027827
_journal_volume                  64
_journal_year                    2008
_chemical_formula_iupac          'C8 H6 Br N3 S'
_chemical_formula_moiety         'C8 H6 Br N3 S'
_chemical_formula_sum            'C8 H6 Br N3 S'
_chemical_formula_weight         256.13
_chemical_melting_point_gt       486
_chemical_melting_point_lt       487
_chemical_name_systematic
;
5-(2-Bromophenyl)-1,3,4-thiadiazol-2-amine
;
_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                 97.43(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.869(3)
_cell_length_b                   8.0250(16)
_cell_length_c                   7.9480(16)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      14
_cell_measurement_theta_min      10
_cell_volume                     940.4(3)
_computing_cell_refinement       'CAD4 Software (Enraf--Nonius, 1989)'
_computing_data_collection       'CAD4 Software (Enraf--Nonius, 1989)'
_computing_data_reduction        'XCAD4 (Harms & Wocadlo, 1995)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXTL (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Enraf--Nonius CAD-4'
_diffrn_measurement_method       '\w/2\q 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  0.0337
_diffrn_reflns_av_sigmaI/netI    0.0639
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            1832
_diffrn_reflns_theta_full        25.17
_diffrn_reflns_theta_max         25.17
_diffrn_reflns_theta_min         1.38
_diffrn_standards_decay_%        0
_diffrn_standards_interval_time  120
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    4.545
_exptl_absorpt_correction_T_max  0.6592
_exptl_absorpt_correction_T_min  0.3425
_exptl_absorpt_correction_type   psi-scan
_exptl_absorpt_process_details   '(North <i>et al.</i>,  1968)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.809
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             504
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.412
_refine_diff_density_min         -0.567
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.970
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     118
_refine_ls_number_reflns         1694
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.970
_refine_ls_R_factor_all          0.1126
_refine_ls_R_factor_gt           0.0598
_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^)+(0.0838P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1329
_refine_ls_wR_factor_ref         0.1530
_reflns_number_gt                972
_reflns_number_total             1694
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            hk2522.cif
_cod_data_source_block           I
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2219608
_cod_database_fobs_code          2219608