1-(Diaminomethylene)thiourea: a tautomer of 2-imino-4-thiobiuret
Janczak, Jan; Perpétuo, Genivaldo Júlio; Acta Crystallographica Section C 64 (2008) o114–o116; doi:10.1107/S0108270108001868

data_2016488
_publ_section_title
;
 1-(Diaminomethylene)thiourea: a tautomer of 2-imino-4-thiobiuret
;
_journal_coeditor_code           GD3190
_journal_issue                   3
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              o114
_journal_page_last               o116
_journal_paper_doi               10.1107/S0108270108001868
_journal_volume                  64
_journal_year                    2008
_chemical_formula_iupac          'C2 H6 N4 S'
_chemical_formula_moiety         'C2 H6 N4 S'
_chemical_formula_sum            'C2 H6 N4 S'
_chemical_formula_weight         118.17
_chemical_name_systematic
;
1-(Diaminomethylene)thiourea
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL97
_cell_angle_alpha                90.00
_cell_angle_beta                 95.05(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   13.505(2)
_cell_length_b                   5.3800(10)
_cell_length_c                   14.111(3)
_cell_measurement_reflns_used    1086
_cell_measurement_temperature    295(2)
_cell_measurement_theta_max      28.28
_cell_measurement_theta_min      2.90
_cell_volume                     1021.3(3)
_computing_cell_refinement       'CrysAlis CCD (Oxford Diffraction, 2005)'
_computing_data_collection       'CrysAlis CCD (Oxford Diffraction, 2005)'
_computing_data_reduction        'CrysAlis CCD (Oxford Diffraction, 2005)'
_computing_molecular_graphics    'DIAMOND (Brandenburg & Putz, 2006)'
_computing_publication_material  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      295(2)
_diffrn_detector_area_resol_mean '1024x1024 with blocks 2x2'
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Kuma KM-4 with 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  0.0141
_diffrn_reflns_av_sigmaI/netI    0.0136
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            5622
_diffrn_reflns_theta_full        28.28
_diffrn_reflns_theta_max         28.28
_diffrn_reflns_theta_min         2.90
_exptl_absorpt_coefficient_mu    0.499
_exptl_absorpt_correction_T_max  0.8785
_exptl_absorpt_correction_T_min  0.7691
_exptl_absorpt_correction_type   analytical
_exptl_absorpt_process_details   'face-indexed (SHELXTL; Sheldrick, 2008)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.537
_exptl_crystal_density_meas      1.53
_exptl_crystal_density_method    flotation
_exptl_crystal_description       rectangular
_exptl_crystal_F_000             496
_exptl_crystal_size_max          0.54
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.23
_refine_diff_density_max         0.138
_refine_diff_density_min         -0.145
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.003
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     88
_refine_ls_number_reflns         1261
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.003
_refine_ls_R_factor_all          0.0283
_refine_ls_R_factor_gt           0.0223
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w = 1/[\s^2^(Fo^2^)+(0.0267P)^2^+0.2215P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0484
_refine_ls_wR_factor_ref         0.0506
_reflns_number_gt                1086
_reflns_number_total             1261
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            gd3190.cif
_cod_data_source_block           I
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               2016488
_cod_database_fobs_code          2016488