#------------------------------------------------------------------------------ #$Date: 2023-03-13 07:35:08 +0000 (Mon, 13 Mar 2023) $ #$Revision: 281832 $ #$URL: svn://www.crystallography.net/cod/cif/2/00/69/2006998.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_2006998 loop_ _publ_author_name 'Wallet, Jean-Claude' 'Habsaoui, Amar' 'Gaydou, Emile M.' 'Molins, Elies' 'Miravitlles, Carlos' _publ_section_title ; 2'-Hydroxy-3'-methoxy-5'-flavonesulfonic Acid Trihydrate: a New Zwitterion ; _journal_issue 2 _journal_name_full 'Acta Crystallographica Section C' _journal_page_first 247 _journal_page_last 249 _journal_paper_doi 10.1107/S0108270197014169 _journal_volume 54 _journal_year 1998 _chemical_formula_moiety 'C16 H12 O7 S, 3H2 O' _chemical_formula_sum 'C16 H18 O10 S' _chemical_formula_weight 402.36 _chemical_name_systematic ; 2-(2-hydroxy-3-methoxy-5-sulfo-phenyl)-4H-1-benzopyran-4-one trihydrate ; _symmetry_cell_setting monoclinic _symmetry_space_group_name_H-M 'P 1 21/c 1' _atom_type_scat_source IntTabIV _cell_angle_alpha 90 _cell_angle_beta 94.030(10) _cell_angle_gamma 90 _cell_formula_units_Z 4 _cell_length_a 8.6650(10) _cell_length_b 12.503(2) _cell_length_c 16.306(2) _cell_measurement_reflns_used 25 _cell_measurement_temperature 293(2) _cell_measurement_theta_max 20 _cell_measurement_theta_min 13 _cell_volume 1762.2(4) _computing_cell_refinement 'CAD-4 Software' _computing_data_collection 'CAD-4 Software (Enraf-Nonius, 1977)' _computing_data_reduction 'PROCESS in MolEN (Fair, 1990)' _computing_molecular_graphics 'ZORTEP (Zsolnai & Pritzkow, 1994)' _computing_structure_refinement 'SHELXL93 (Sheldrick, 1993)' _computing_structure_solution 'SHELXS86 (Sheldrick, 1990)' _diffrn_ambient_temperature 293(2) _diffrn_measurement_device 'Enraf-Nonius CAD-4' _diffrn_measurement_method \w--2\q _diffrn_radiation_type MoK\a _diffrn_radiation_wavelength 0.71069 _diffrn_reflns_av_R_equivalents 0.0214 _diffrn_reflns_limit_h_max 0 _diffrn_reflns_limit_h_min -12 _diffrn_reflns_limit_k_max 0 _diffrn_reflns_limit_k_min -17 _diffrn_reflns_limit_l_max 23 _diffrn_reflns_limit_l_min -23 _diffrn_reflns_number 4927 _diffrn_reflns_theta_max 30.40 _diffrn_reflns_theta_min 2.36 _diffrn_standards_decay_% 0.4 _diffrn_standards_interval_time 60 _diffrn_standards_number 3 _exptl_absorpt_coefficient_mu 0.239 _exptl_absorpt_correction_T_max 1.000 _exptl_absorpt_correction_T_min 0.983 _exptl_absorpt_correction_type empirical _exptl_absorpt_process_details 'empirical via \y scan (North, Phillips & Mathews, 1968)' _exptl_crystal_colour yellow _exptl_crystal_density_diffrn 1.517 _exptl_crystal_density_method 'not measured' _exptl_crystal_description prismatic _exptl_crystal_F_000 840 _exptl_crystal_size_max 0.56 _exptl_crystal_size_mid 0.28 _exptl_crystal_size_min 0.15 _refine_diff_density_max .293 _refine_diff_density_min -.399 _refine_ls_extinction_method none _refine_ls_goodness_of_fit_obs 0.944 _refine_ls_matrix_type full _refine_ls_number_constraints 0 _refine_ls_number_parameters 270 _refine_ls_number_reflns 4645 _refine_ls_number_restraints 0 _refine_ls_R_factor_all .146 _refine_ls_R_factor_obs .041 _refine_ls_shift/esd_max 0.041 _refine_ls_structure_factor_coef Fsqd _refine_ls_weighting_scheme calc _refine_ls_weighting_details ;1/[\s^2^(F~o~)^2^+(0.0106P)^2^] where P = [max(0,F~o~^2^)+2F~c~^2^]/3 ; _refine_ls_wR_factor_obs .101 _reflns_number_observed 2392 _reflns_number_total 4645 _reflns_observed_criterion I>2\s(I) _cod_data_source_file cf1187.cif _cod_data_source_block SULFO _cod_original_sg_symbol_H-M 'P 21/c' _cod_database_code 2006998 loop_ _cod_changelog_entry_id _cod_changelog_entry_author _cod_changelog_entry_date _cod_changelog_entry_text 1 'Steef Boerrigter' 2023-02-22T10:07:00+02:00 ;Corrected sapce group operators added the missing inversion symmetry to the group: -x,-y,-z ; 2 'Saulius Graz\