#------------------------------------------------------------------------------ #$Date: 2010-01-30 15:59:17 +0200 (Sat, 30 Jan 2010) $ #$Revision: 966 $ #$URL: file:///home/coder/svn-repositories/cod/cif/2/2100163.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_2100163 _journal_name_full 'Acta Crystallographica, Section B' _journal_year 2005 _journal_volume 61 _journal_page_first 511 _journal_page_last 527 _chemical_formula_moiety ' C3 H4 N2 O2 ' _chemical_formula_sum 'C3 H4 N2 O2' _chemical_formula_weight 100.08 _symmetry_cell_setting Monoclinic _space_group_IT_number 15 _symmetry_space_group_name_Hall '-C 2yc' _symmetry_space_group_name_H-M 'C 1 2/c 1' _[local]_cod_cif_authors_sg_H-M 'C 2/c' loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' '-x,-y,-z' 'x+1/2,y+1/2,z' '-x+1/2,-y+1/2,-z' '-x,y,-z+1/2' 'x,-y,z+1/2' '-x+1/2,y+1/2,-z+1/2' 'x+1/2,-y+1/2,z+1/2' _cell_length_a 9.3538(7) _cell_length_b 12.1757(11) _cell_length_c 7.2286(6) _cell_angle_alpha 90 _cell_angle_beta 104.593(4) _cell_angle_gamma 90 _cell_volume 796.70(11) _cell_formula_units_Z 8 _cell_measurement_temperature 190 _exptl_crystal_density_diffrn 1.669 _diffrn_ambient_temperature 190 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_refinement_flags _atom_site_occupancy _atom_site_type_symbol C1 0.7974(3) 0.00484(19) 0.8218(3) 0.0271 Uani . 1.0000 C N2 0.6630(2) 0.01532(16) 0.6856(3) 0.0271 Uani . 1.0000 N C3 0.6326(3) 0.12247(19) 0.6338(3) 0.0280 Uani . 1.0000 C C4 0.7522(3) 0.1883(2) 0.7508(4) 0.0326 Uani . 1.0000 C N5 0.8510(3) 0.10869(19) 0.8685(3) 0.0374 Uani . 1.0000 N O6 0.5237(2) 0.15458(14) 0.5136(3) 0.0376 Uani . 1.0000 O O7 0.8518(2) -0.08264(14) 0.8866(3) 0.0366 Uani . 1.0000 O H41 0.802(3) 0.224(3) 0.685(5) 0.0388 Uiso . 1.0000 H H42 0.723(3) 0.236(3) 0.815(5) 0.0388 Uiso . 1.0000 H H51 0.943(3) 0.119(2) 0.959(4) 0.0309 Uiso . 1.0000 H H2 0.610(4) -0.038(3) 0.623(5) 0.0500 Uiso . 1.0000 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 C1 0.0268(12) 0.0249(11) 0.0285(11) -0.0012(9) 0.0050(9) 0.0002(9) N2 0.0270(10) 0.0198(9) 0.0303(11) -0.0027(7) -0.0006(8) -0.0005(7) C3 0.0328(12) 0.0236(11) 0.0255(12) -0.0033(9) 0.0035(9) 0.0005(8) C4 0.0474(15) 0.0179(11) 0.0314(13) -0.0030(10) 0.0077(11) 0.0001(9) N5 0.0327(12) 0.0373(12) 0.0362(13) -0.0040(10) -0.0030(10) -0.0052(9) O6 0.0437(11) 0.0257(9) 0.0350(10) 0.0016(7) -0.0063(8) 0.0020(7) O7 0.0360(10) 0.0262(9) 0.0417(11) 0.0036(7) -0.0009(8) 0.0020(7) _cod_database_code 2100163