#------------------------------------------------------------------------------ #$Date: 2011-09-28 17:24:46 +0300 (Wed, 28 Sep 2011) $ #$Revision: 26848 $ #$URL: file:///home/coder/svn-repositories/cod/cif/2/10/05/2100576.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_2100576 loop_ _publ_author_name 'Tremayne, Maryjane' 'Kariuki, Benson M.' 'Chong, Samantha Y.' 'Seaton, Colin C.' _publ_section_title ; Molecular versus crystal symmetry in tri-substituted triazine, benzene and isocyanurate derivatives ; _journal_coeditor_code BM5031 _journal_issue 2 _journal_name_full 'Acta Crystallographica, Section B' _journal_page_first 864 _journal_page_last 874 _journal_volume 62 _journal_year 2006 _chemical_formula_moiety 'C12 H15 N3 O6' _chemical_formula_sum 'C12 H15 N3 O6' _chemical_formula_weight 297.27 _chemical_name_systematic ; triethyl-1,3,5-triazine-2,4,6-tricarboxylate ; _symmetry_cell_setting hexagonal _symmetry_space_group_name_H-M P63/m _atom_sites_solution_hydrogens geom _atom_sites_solution_primary direct _atom_sites_solution_secondary difmap _audit_creation_method SHELXL-97 _cell_angle_alpha 90.00 _cell_angle_beta 90.00 _cell_angle_gamma 120.00 _cell_formula_units_Z 2 _cell_length_a 10.99920(10) _cell_length_b 10.99920(10) _cell_length_c 6.7639(2) _cell_measurement_reflns_used 438 _cell_measurement_temperature 296(2) _cell_measurement_theta_max 70.65 _cell_measurement_theta_min 4.64 _cell_volume 708.68(2) _computing_structure_refinement 'SHELXL-97 (Sheldrick, 1997)' _diffrn_ambient_temperature 296(2) _diffrn_measured_fraction_theta_full 0.986 _diffrn_measured_fraction_theta_max 0.986 _diffrn_measurement_device_type 'Bruker Smart 6000 CCD' _diffrn_measurement_method 'CCD slices' _diffrn_radiation_monochromator graphite _diffrn_radiation_source 'fine-focus sealed tube' _diffrn_radiation_type CuK\a _diffrn_radiation_wavelength 1.54178 _diffrn_reflns_av_R_equivalents 0.0422 _diffrn_reflns_av_sigmaI/netI 0.0222 _diffrn_reflns_limit_h_max 13 _diffrn_reflns_limit_h_min -12 _diffrn_reflns_limit_k_max 13 _diffrn_reflns_limit_k_min -13 _diffrn_reflns_limit_l_max 8 _diffrn_reflns_limit_l_min -8 _diffrn_reflns_number 4557 _diffrn_reflns_theta_full 70.65 _diffrn_reflns_theta_max 70.65 _diffrn_reflns_theta_min 4.64 _exptl_absorpt_coefficient_mu 0.968 _exptl_absorpt_correction_T_max 0.8299 _exptl_absorpt_correction_T_min 0.7469 _exptl_absorpt_correction_type empirical _exptl_absorpt_process_details Sadabs _exptl_crystal_colour colourless _exptl_crystal_density_diffrn 1.393 _exptl_crystal_density_method 'not measured' _exptl_crystal_description plate _exptl_crystal_F_000 312 _exptl_crystal_size_max 0.32 _exptl_crystal_size_mid 0.20 _exptl_crystal_size_min 0.20 _refine_diff_density_max 0.353 _refine_diff_density_min -0.382 _refine_ls_extinction_coef 0.050(9) _refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^ _refine_ls_extinction_method SHELXL _refine_ls_goodness_of_fit_ref 1.124 _refine_ls_hydrogen_treatment constr _refine_ls_matrix_type full _refine_ls_number_parameters 44 _refine_ls_number_reflns 496 _refine_ls_number_restraints 0 _refine_ls_restrained_S_all 1.124 _refine_ls_R_factor_all 0.0819 _refine_ls_R_factor_gt 0.0764 _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^)+(0.0927P)^2^+0.5082P] where P=(Fo^2^+2Fc^2^)/3' _refine_ls_weighting_scheme calc _refine_ls_wR_factor_gt 0.2070 _refine_ls_wR_factor_ref 0.2121 _reflns_number_gt 438 _reflns_number_total 496 _reflns_threshold_expression >2sigma(I) _[local]_cod_data_source_file bm5031.cif _cod_depositor_comments ; The following automatic conversions were performed: '_symmetry_cell_setting' value 'Hexagonal' changed to 'hexagonal' according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic' dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29. Automatic conversion script Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius ; _cod_database_code 2100576 loop_ _symmetry_equiv_pos_as_xyz 'x, y, z' '-x, -y, z+1/2' '-y, x-y, z' '-x+y, -x, z' 'x-y, x, z+1/2' 'y, -x+y, z+1/2' '-x, -y, -z' 'x, y, -z-1/2' 'y, -x+y, -z' 'x-y, x, -z' '-x+y, -x, -z-1/2' '-y, x-y, -z-1/2' loop_ _atom_site_type_symbol _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 C C1 0.7981(3) 0.3717(3) 0.2500 0.0612(13) Uani d S 1 C C2 0.9543(4) 0.4215(4) 0.2500 0.0828(17) Uani d S 1 C C4 1.1269(3) 0.3555(4) 0.2500 0.0903(19) Uani d S 1 H H4 1.1734 0.4112 0.1338 0.108 Uiso calc R 1 C C5 1.1367(4) 0.2313(4) 0.2500 0.0747(14) Uani d S 1 H H5A 1.2337 0.2561 0.2500 0.090 Uiso calc SR 1 H H5B 1.0915 0.1769 0.1341 0.090 Uiso calc R 1 N N1 0.7080(3) 0.2349(3) 0.2500 0.0643(12) Uani d S 1 O O2 1.0399(3) 0.5410(3) 0.2500 0.207(4) Uani d S 1 O O3 0.9792(2) 0.3184(2) 0.2500 0.0638(11) Uani d S 1 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 0.0355(17) 0.0335(17) 0.116(3) 0.0180(13) 0.000 0.000 C2 0.0358(19) 0.0365(18) 0.176(5) 0.0178(15) 0.000 0.000 C4 0.0286(17) 0.048(2) 0.194(6) 0.0187(15) 0.000 0.000 C5 0.045(2) 0.066(3) 0.119(4) 0.033(2) 0.000 0.000 N1 0.0338(15) 0.0350(15) 0.123(3) 0.0165(11) 0.000 0.000 O2 0.0396(17) 0.0376(17) 0.538(12) 0.0162(13) 0.000 0.000 O3 0.0311(13) 0.0376(13) 0.123(3) 0.0173(10) 0.000 0.000 loop_ _atom_type_symbol _atom_type_description _atom_type_scat_dispersion_real _atom_type_scat_dispersion_imag _atom_type_scat_source C C 0.0181 0.0091 '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 0.0311 0.0180 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' O O 0.0492 0.0322 '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_site_symmetry_1 _geom_angle_site_symmetry_3 _geom_angle N1 C1 N1 . 3_655 126.0(3) N1 C1 C2 . . 118.6(3) N1 C1 C2 3_655 . 115.4(3) O2 C2 O3 . . 125.4(3) O2 C2 C1 . . 122.2(3) O3 C2 C1 . . 112.4(3) C5 C4 O3 . . 109.8(3) C1 N1 C1 . 4_665 114.0(3) C2 O3 C4 . . 116.6(3) O3 C4 H4 . . 109.7 C4 C5 H5A . . 109.5 C4 C5 H5B . . 109.5 H5A C5 H5B . . 109.5 loop_ _geom_bond_atom_site_label_1 _geom_bond_atom_site_label_2 _geom_bond_site_symmetry_2 _geom_bond_distance C1 N1 . 1.325(4) C1 N1 3_655 1.335(4) C1 C2 . 1.520(4) C2 O2 . 1.173(5) C2 O3 . 1.292(4) C4 C5 . 1.423(5) C4 O3 . 1.464(4) C4 H4 . 0.9700 C5 H5A . 0.9600 C5 H5B . 0.9600