#------------------------------------------------------------------------------
#$Date: 2017-10-13 03:48:21 +0300 (Fri, 13 Oct 2017) $
#$Revision: 201957 $
#$URL: file:///home/coder/svn-repositories/cod/cif/2/01/43/2014395.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/. The original data for this entry
# were provided by IUCr Journals, http://journals.iucr.org/.
#
# The file may be used within the scientific community so long as
# proper attribution is given to the journal article from which the
# data were obtained.
#
data_2014395
loop_
_publ_author_name
'Boechat, Nubia'
'Ferreira, Sabrina B.'
'Glidewell, Christopher'
'Low, John N.'
'Skakle, Janet M. S.'
'Wardell, Solange M. S. V.'
_publ_section_title
;
 2-Amino-5-trifluoromethyl-1,3,4-thiadiazole and a redetermination of
 2-amino-1,3,4-thiadiazole, both at 120K: chains of edge-fused
 R₂²(8) and R₄⁴(10) rings, and sheets of
 R₂²(8) and R₆⁶(20) rings
;
_journal_coeditor_code           SK1892
_journal_issue                   1
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              o42
_journal_page_last               o44
_journal_paper_doi               10.1107/S0108270105040126
_journal_volume                  62
_journal_year                    2006
_chemical_formula_iupac          'C2 H3 N3 S'
_chemical_formula_moiety         'C2 H3 N3 S'
_chemical_formula_sum            'C2 H3 N3 S'
_chemical_formula_weight         101.13
_chemical_name_systematic
;
2-amino-1,3,4-thiadiazole
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 109.984(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   5.5718(5)
_cell_length_b                   13.4573(17)
_cell_length_c                   5.7875(5)
_cell_measurement_reflns_used    936
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      27.63
_cell_measurement_theta_min      3.03
_cell_volume                     407.83(7)
_computing_cell_refinement
'DENZO (Otwinowski & Minor, 1997) and COLLECT'
_computing_data_collection       'COLLECT (Nonius, 1999)'
_computing_data_reduction        'DENZO and COLLECT'
_computing_molecular_graphics    'PLATON (Spek, 2003)'
_computing_publication_material  'SHELXL97 and PRPKAPPA (Ferguson, 1999)'
_computing_structure_refinement
'OSCAIL (McArdle, 2003) and SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution
'WinGX (Farrugia, 1999) and SIR92 (Altomare et al.,  1993)'
_diffrn_ambient_temperature      120(2)
_diffrn_detector_area_resol_mean 9.091
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.985
_diffrn_measurement_device_type  'Nonius KappaCCD area-detector'
_diffrn_measurement_method       'φ and ω'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Bruker Nonius FR91 rotating anode'
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0962
_diffrn_reflns_av_sigmaI/netI    0.0580
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       7
_diffrn_reflns_limit_l_min       -6
_diffrn_reflns_number            6842
_diffrn_reflns_theta_full        26.50
_diffrn_reflns_theta_max         27.63
_diffrn_reflns_theta_min         3.03
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    0.604
_exptl_absorpt_correction_T_max  0.988
_exptl_absorpt_correction_T_min  0.919
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick,  2003)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.647
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             208
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.04
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.393
_refine_diff_density_min         -0.375
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.078
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     59
_refine_ls_number_reflns         936
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.078
_refine_ls_R_factor_all          0.0656
_refine_ls_R_factor_gt           0.0384
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[σ²(Fo²)+(0.056P)²] where P=(Fo²+2Fc²)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0935
_refine_ls_wR_factor_ref         0.1020
_reflns_number_gt                736
_reflns_number_total             936
_reflns_threshold_expression     I>2σ(I)
_cod_data_source_file            sk1892.cif
_cod_data_source_block           I
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               2014395
_cod_database_fobs_code          2014395
loop_
_symmetry_equiv_pos_as_xyz
'x, y, z'
'x+1/2, -y+1/2, z+1/2'
'-x, -y, -z'
'-x+1/2, y+1/2, -z+1/2'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
_atom_site_adp_type
_atom_site_calc_flag
_atom_site_refinement_flags
_atom_site_occupancy
_atom_site_disorder_assembly
_atom_site_disorder_group
_atom_site_type_symbol
S1 -0.09495(9) 0.66383(5) 0.20459(8) 0.0231(2) Uani d . 1 . . S
N2 0.3077(3) 0.55639(16) 0.1828(3) 0.0265(5) Uani d . 1 . . N
N3 0.2533(3) 0.57916(15) 0.5659(3) 0.0207(4) Uani d . 1 . . N
N4 0.0865(3) 0.62459(16) 0.6651(3) 0.0225(5) Uani d . 1 . . N
C2 0.1817(3) 0.59265(18) 0.3254(3) 0.0192(5) Uani d . 1 . . C
C5 -0.0989(4) 0.67071(19) 0.5026(4) 0.0231(5) Uani d . 1 . . C
H21 0.4382 0.5178 0.2485 0.032 Uiso d R 1 . . H
H22 0.2423 0.5705 0.0231 0.032 Uiso d R 1 . . H
H5 -0.229(4) 0.709(2) 0.531(4) 0.033(6) Uiso d . 1 . . H
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
S1 0.0227(3) 0.0278(4) 0.0179(3) 0.0044(2) 0.0057(2) 0.0033(2)
N2 0.0253(8) 0.0391(15) 0.0153(8) 0.0089(8) 0.0073(6) 0.0045(8)
N3 0.0229(8) 0.0224(13) 0.0171(7) 0.0007(7) 0.0072(6) -0.0006(7)
N4 0.0262(9) 0.0229(13) 0.0201(8) -0.0012(8) 0.0099(7) -0.0023(7)
C2 0.0204(9) 0.0181(13) 0.0181(9) -0.0012(8) 0.0053(7) 0.0020(8)
C5 0.0253(10) 0.0239(15) 0.0219(10) 0.0005(9) 0.0104(8) -0.0006(9)
loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
C C 0.0033 0.0016 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
H H 0.0000 0.0000 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
N N 0.0061 0.0033 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
S S 0.1246 0.1234 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle
_geom_angle_publ_flag
C5 S1 C2 86.59(10) no
N3 C2 N2 124.25(19) no
N3 C2 S1 113.86(15) no
N2 C2 S1 121.89(14) no
C2 N2 H21 118.9 no
C2 N2 H22 116.4 no
H21 N2 H22 124.5 no
C2 N3 N4 111.73(16) no
C5 N4 N3 113.04(16) no
N4 C5 S1 114.78(16) no
N4 C5 H5 127.2(13) no
S1 C5 H5 118.0(14) no
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_site_symmetry_2
_geom_bond_distance
_geom_bond_publ_flag
S1 C5 . 1.735(2) no
S1 C2 . 1.745(2) no
C2 N3 . 1.323(2) no
C2 N2 . 1.345(3) no
N2 H21 . 0.87 no
N2 H22 . 0.89 no
N3 N4 . 1.390(2) no
N4 C5 . 1.293(3) no
C5 H5 . 0.95(3) no
loop_
_geom_hbond_atom_site_label_D
_geom_hbond_atom_site_label_H
_geom_hbond_atom_site_label_A
_geom_hbond_site_symmetry_A
_geom_hbond_distance_DH
_geom_hbond_distance_HA
_geom_hbond_distance_DA
_geom_hbond_angle_DHA
_geom_hbond_publ_flag
N2 H21 N3 3_666 0.87 2.13 2.999(3) 175 y
N2 H22 N4 1_554 0.89 2.08 2.969(2) 172 y
loop_
_geom_torsion_atom_site_label_1
_geom_torsion_atom_site_label_2
_geom_torsion_atom_site_label_3
_geom_torsion_atom_site_label_4
_geom_torsion
_geom_torsion_publ_flag
C5 S1 C2 N3 -0.45(18) no
C5 S1 C2 N2 -180.0(2) no
N2 C2 N3 N4 -179.7(2) no
S1 C2 N3 N4 0.8(2) no
C2 N3 N4 C5 -0.8(3) no
N3 N4 C5 S1 0.4(3) no
C2 S1 C5 N4 0.00(19) no
loop_
_cod_related_entry_id
_cod_related_entry_database
_cod_related_entry_code
1 ChemSpider 18755
