(4<i>R</i>*,5<i>R</i>*)-2-(4-Methoxyphenyl)-1,3-dioxolane-4,5-dicarboxamide
Lv, Chun-Lei; Chen, Jian-Hui; Zhang, Yu-Zhe; Lu, Ding-Qiang; OuYang, Ping-Kai; Acta Crystallographica Section E 68 (2012) o558–; doi:10.1107/S1600536812002401

data_2234001
_publ_section_title
;
 (4<i>R</i>*,5<i>R</i>*)-2-(4-Methoxyphenyl)-1,3-dioxolane-4,5-dicarboxamide
;
_journal_coeditor_code           SU2367
_journal_issue                   3
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o558
_journal_paper_doi               10.1107/S1600536812002401
_journal_volume                  68
_journal_year                    2012
_chemical_formula_iupac          'C12 H14 N2 O5'
_chemical_formula_moiety         'C12 H14 N2 O5'
_chemical_formula_sum            'C12 H14 N2 O5'
_chemical_formula_weight         266.25
_chemical_name_systematic
;
(4<i>R</i>*,5<i>R</i>*)-2-(4-Methoxyphenyl)-1,3-dioxolane-4,5-dicarboxamide
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                90.00
_cell_formula_units_Z            4
_cell_length_a                   6.9620(14)
_cell_length_b                   10.727(2)
_cell_length_c                   16.932(3)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      12
_cell_measurement_theta_min      9
_cell_volume                     1264.5(4)
_computing_cell_refinement       'CAD-4 Software (Enraf--Nonius, 1989)'
_computing_data_collection       'CAD-4 Software (Enraf--Nonius, 1989)'
_computing_data_reduction        'XCAD4 (Harms & Wocadlo, 1995)'
_computing_molecular_graphics    'PLATON (Spek, 2009)'
_computing_publication_material  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Enraf--Nonius CAD-4'
_diffrn_measurement_method       \w/2\q
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0354
_diffrn_reflns_av_sigmaI/netI    0.0374
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            2615
_diffrn_reflns_theta_full        25.27
_diffrn_reflns_theta_max         25.27
_diffrn_reflns_theta_min         2.25
_diffrn_standards_decay_%        1
_diffrn_standards_interval_count 200
_diffrn_standards_interval_time  120
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.110
_exptl_absorpt_correction_T_max  0.9891
_exptl_absorpt_correction_T_min  0.9783
_exptl_absorpt_correction_type   psi-scan
_exptl_absorpt_process_details   '(North <i>et al.</i>, 1968)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.399
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             560
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.162
_refine_diff_density_min         -0.159
_refine_ls_abs_structure_details 'none; 945 Friedel pairs merged'
_refine_ls_extinction_coef       0.024(5)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL97 (Sheldrick, 2008)'
_refine_ls_goodness_of_fit_ref   1.001
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     173
_refine_ls_number_reflns         2297
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.001
_refine_ls_R_factor_all          0.0529
_refine_ls_R_factor_gt           0.0407
_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^)+(0.0980P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1259
_refine_ls_wR_factor_ref         0.1352
_reflns_number_gt                1939
_reflns_number_total             2297
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            su2367.cif
_cod_data_source_block           I
_cod_database_code               2234001
_cod_database_fobs_code          2234001