1-Benzyl-2,5-dioxopyrrolidine-3,4-diyl diacetate
Caracelli, Ignez; Ferreira, Fernando P.; Vieira, Adriano S.; Stefani, Hélio A.; De Simone, Carlos A.; Tiekink, Edward R. T.; Acta Crystallographica Section E 66 (2010) o3044–; doi:10.1107/S1600536810043187

data_2228376
_publ_section_title
;
 1-Benzyl-2,5-dioxopyrrolidine-3,4-diyl diacetate
;
_journal_coeditor_code           HG2732
_journal_issue                   12
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o3044
_journal_paper_doi               10.1107/S1600536810043187
_journal_volume                  66
_journal_year                    2010
_chemical_formula_iupac          'C15 H15 N O6'
_chemical_formula_moiety         'C15 H15 N O6'
_chemical_formula_sum            'C15 H15 N O6'
_chemical_formula_weight         305.28
_chemical_name_systematic
;
1-Benzyl-2,5-dioxopyrrolidine-3,4-diyl diacetate
;
_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
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.8498(4)
_cell_length_b                   9.8107(4)
_cell_length_c                   17.5148(6)
_cell_measurement_reflns_used    5560
_cell_measurement_temperature    290(2)
_cell_measurement_theta_max      26.4
_cell_measurement_theta_min      2.9
_cell_volume                     1520.68(11)
_computing_cell_refinement       'SAINT (Bruker, 2007)'
_computing_data_collection       'APEX2 (Bruker, 2007)'
_computing_data_reduction        'SAINT (Bruker, 2007)'
_computing_molecular_graphics
'ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 2006)'
_computing_publication_material  'publCIF (Westrip, 2010)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SIR97 (Altomare <i>et al.</i>, 1999)'
_diffrn_ambient_temperature      290(2)
_diffrn_measured_fraction_theta_full 0.987
_diffrn_measured_fraction_theta_max 0.987
_diffrn_measurement_device_type  'Bruker SMART APEXII'
_diffrn_measurement_method       '\f and \w scans'
_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  0.122
_diffrn_reflns_av_sigmaI/netI    0.061
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            7672
_diffrn_reflns_theta_full        25.0
_diffrn_reflns_theta_max         25.0
_diffrn_reflns_theta_min         3.1
_diffrn_standards_decay_%        '< 1'
_diffrn_standards_interval_count 0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.104
_exptl_absorpt_correction_T_max  0.991
_exptl_absorpt_correction_T_min  0.962
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.333
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             640
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.12
_refine_diff_density_min         -0.12
_refine_ls_extinction_coef       0.111(10)
_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   1.07
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     202
_refine_ls_number_reflns         1541
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.07
_refine_ls_R_factor_all          0.044
_refine_ls_R_factor_gt           0.036
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_max_lt       0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0293P)^2^+0.1923P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.081
_refine_ls_wR_factor_ref         0.085
_reflns_number_gt                1396
_reflns_number_total             1541
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            hg2732.cif
_cod_data_source_block           I
_cod_database_code               2228376
_cod_database_fobs_code          2228376