#------------------------------------------------------------------------------ #$Date: 2009-11-16 03:43:51 +0200 (Mon, 16 Nov 2009) $ #$Revision: 853 $ #$URL: file:///home/coder/svn-repositories/cod/cif/2/2014395.cif $ #------------------------------------------------------------------------------ # # This file is available in the Crystallography Open Database (COD), # http://www.crystallography.net/ # # All data on this site have been placed in the public domain by the # contributors. # data_2014395 _journal_name_full 'Acta Crystallographica, Section C' _journal_year 2006 _journal_volume 62 _journal_page_first o42 _journal_page_last o44 _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 R~2~^2^(8) and R~4~^4^(10) rings, and sheets of R~2~^2^(8) and R~6~^6^(20) rings ; _space_group_IT_number 14 _symmetry_space_group_name_Hall '-P 2yn' _symmetry_space_group_name_H-M 'P 1 21/n 1' _[local]_cod_cif_authors_sg_H-M 'P 21/n' loop_ _publ_author_name 'Boechat, Nubia' 'Ferreira, Sabrina B.' 'Glidewell, Christopher' 'Low, John N.' 'Skakle, Janet M. S.' 'Wardell, Solange M. S. V.' _chemical_formula_moiety 'C2 H3 N3 S' _chemical_formula_sum 'C2 H3 N3 S' _chemical_formula_iupac 'C2 H3 N3 S' _chemical_formula_weight 101.13 _symmetry_cell_setting monoclinic 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' _cell_length_a 5.5718(5) _cell_length_b 13.4573(17) _cell_length_c 5.7875(5) _cell_angle_alpha 90.00 _cell_angle_beta 109.984(6) _cell_angle_gamma 90.00 _cell_volume 407.83(7) _cell_formula_units_Z 4 _cell_measurement_temperature 120(2) _exptl_crystal_density_diffrn 1.647 _diffrn_ambient_temperature 120(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_ _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