4-(3,5-Dioxo-10-oxa-4-azatricyclo[5.2.1.0^2,6^]decan-4-yl)-10-oxa-4-azatricyclo[5.2.1.0^2,6^]decane-3,5-dione
Wang, Peng-Peng; Lin, Qiu-Yue; Zhang, Fan; Acta Crystallographica Section E 68 (2012) o381–; doi:10.1107/S1600536812000542

data_2233431
_publ_section_title
;
 4-(3,5-Dioxo-10-oxa-4-azatricyclo[5.2.1.0^2,6^]decan-4-yl)-10-oxa-4-azatricyclo[5.2.1.0^2,6^]decane-3,5-dione
;
_journal_coeditor_code           FF2050
_journal_issue                   2
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o381
_journal_paper_doi               10.1107/S1600536812000542
_journal_volume                  68
_journal_year                    2012
_chemical_formula_iupac          'C16 H16 N2 O6'
_chemical_formula_moiety         'C16 H16 N2 O6'
_chemical_formula_sum            'C16 H16 N2 O6'
_chemical_formula_weight         332.31
_chemical_name_systematic
;
4-(3,5-Dioxo-10-oxa-4-azatricyclo[5.2.1.0^2,6^]decan-4-yl)-10-oxa-4-
azatricyclo[5.2.1.0^2,6^]decane-3,5-dione
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_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            8
_cell_length_a                   10.2342(6)
_cell_length_b                   10.5673(6)
_cell_length_c                   27.3485(17)
_cell_measurement_reflns_used    2007
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      27.61
_cell_measurement_theta_min      1.49
_cell_volume                     2957.7(3)
_computing_cell_refinement       'SAINT (Bruker, 2004)'
_computing_data_collection       'SMART (Bruker, 2004)'
_computing_data_reduction        'SAINT (Bruker, 2004)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXTL (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXTL (Sheldrick, 2008)'
_computing_structure_solution    'SHELXTL (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker P4'
_diffrn_measurement_method       '\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  0.1625
_diffrn_reflns_av_sigmaI/netI    0.0782
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       35
_diffrn_reflns_limit_l_min       -35
_diffrn_reflns_number            43071
_diffrn_reflns_theta_full        27.61
_diffrn_reflns_theta_max         27.61
_diffrn_reflns_theta_min         1.49
_diffrn_standards_decay_%        0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.116
_exptl_absorpt_correction_T_max  .991
_exptl_absorpt_correction_T_min  .987
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.493
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1392
_exptl_crystal_size_max          .135
_exptl_crystal_size_mid          .094
_exptl_crystal_size_min          .081
_refine_diff_density_max         0.235
_refine_diff_density_min         -0.211
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.069
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     217
_refine_ls_number_reflns         3423
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.069
_refine_ls_R_factor_gt           0.0825
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0862P)^2^+1.8201P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1879
_refine_ls_wR_factor_ref         0.2240
_reflns_number_gt                1581
_reflns_number_total             3423
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            ff2050.cif
_cod_data_source_block           I
_cod_database_code               2233431
_cod_database_fobs_code          2233431