5-(4-Pyridyl)-1,3,4-thiadiazole-2(3<i>H</i>)-thione
Liu, Xu-Feng; Liu, Xing-Hai; Acta Crystallographica Section E 67 (2011) o202–; doi:10.1107/S1600536810052116

data_2228740
_publ_section_title
;
 5-(4-Pyridyl)-1,3,4-thiadiazole-2(3<i>H</i>)-thione
;
_journal_coeditor_code           HB5770
_journal_issue                   1
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o202
_journal_paper_doi               10.1107/S1600536810052116
_journal_volume                  67
_journal_year                    2011
_chemical_formula_iupac          'C7 H5 N3 S2'
_chemical_formula_moiety         'C7 H5 N3 S2'
_chemical_formula_sum            'C7 H5 N3 S2'
_chemical_formula_weight         195.26
_chemical_name_systematic
;
5-(4-Pyridyl)-1,3,4-thiadiazole-2(3<i>H</i>)-thione
;
_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                 103.680(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.837(3)
_cell_length_b                   15.971(5)
_cell_length_c                   6.694(2)
_cell_measurement_reflns_used    2887
_cell_measurement_temperature    113(2)
_cell_measurement_theta_max      27.9
_cell_measurement_theta_min      2.6
_cell_volume                     814.1(5)
_computing_cell_refinement       'CrystalClear (Rigaku/MSC, 2005)'
_computing_data_collection       'CrystalClear (Rigaku/MSC, 2005)'
_computing_data_reduction        'CrystalClear (Rigaku/MSC, 2005)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      113(2)
_diffrn_detector_area_resol_mean 14.63
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Rigaku Saturn CCD'
_diffrn_measurement_method       '\w and \f'
_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  0.0333
_diffrn_reflns_av_sigmaI/netI    0.0312
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            8141
_diffrn_reflns_theta_full        27.84
_diffrn_reflns_theta_max         27.84
_diffrn_reflns_theta_min         2.55
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.593
_exptl_absorpt_correction_T_max  0.9541
_exptl_absorpt_correction_T_min  0.8906
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(CrystalClear; Rigaku/MSC, 2005)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.593
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             400
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.443
_refine_diff_density_min         -0.212
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.058
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     113
_refine_ls_number_reflns         1928
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.057
_refine_ls_R_factor_all          0.0333
_refine_ls_R_factor_gt           0.0276
_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^)+(0.0461P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0729
_refine_ls_wR_factor_ref         0.0755
_reflns_number_gt                1642
_reflns_number_total             1928
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            hb5770.cif
_cod_data_source_block           I
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2228740
_cod_database_fobs_code          2228740