Dipropyl 4,8-dioxo-1<i>H</i>,5<i>H</i>-2,6-dioxa-3a,4a,7a,8a-tetraazacyclopenta[<i>def</i>]fluorene-8b,8c-dicarboxylate
Shuai Wang; Yan Hu; Meng Gao; Zi-Hua Wang; Acta Crystallographica Section E 64 (2008) o265–o265; doi:10.1107/S1600536807065853

data_2217147
_publ_section_title
;Dipropyl
 4,8-dioxo-1<i>H</i>,5<i>H</i>-2,6-dioxa-3a,4a,7a,8a-tetraazacyclopenta[<i>def</i>]fluorene-8b,8c-dicarboxylate
;
_journal_coeditor_code           IS2262
_journal_issue                   1
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o265
_journal_page_last               o265
_journal_paper_doi               10.1107/S1600536807065853
_journal_volume                  64
_journal_year                    2008
_chemical_formula_iupac          'C16 H22 N4 O8'
_chemical_formula_moiety         'C16 H22 N4 O8'
_chemical_formula_sum            'C16 H22 N4 O8'
_chemical_formula_weight         398.38
_chemical_name_systematic
;
Dipropyl 4,8-dioxo-1H,5H-2,6-dioxa-3a,4a,7a,8a-
tetraazacyclopenta[def]fluorene-8b,8c-dicarboxylate
;
_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                   8.6399(4)
_cell_length_b                   13.401(7)
_cell_length_c                   16.0445(8)
_cell_measurement_reflns_used    3466
_cell_measurement_temperature    294(2)
_cell_measurement_theta_max      21.48
_cell_measurement_theta_min      2.54
_cell_volume                     1857.7(10)
_computing_cell_refinement       'SAINT (Bruker, 2001)'
_computing_data_collection       'SMART (Bruker, 2001)'
_computing_data_reduction        'SAINT (Bruker, 2001)'
_computing_molecular_graphics    'PLATON (Spek, 2003)'
_computing_publication_material  'SHELXTL (Bruker, 2001)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      294(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker SMART APEX CCD area-detector'
_diffrn_measurement_method       '\f and \w'
_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  0.0412
_diffrn_reflns_av_sigmaI/netI    0.0263
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            17272
_diffrn_reflns_theta_full        27.00
_diffrn_reflns_theta_max         27.00
_diffrn_reflns_theta_min         2.54
_exptl_absorpt_coefficient_mu    0.115
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.424
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             840
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.258
_refine_diff_density_min         -0.183
_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     263
_refine_ls_number_reflns         2315
_refine_ls_number_restraints     4
_refine_ls_restrained_S_all      1.070
_refine_ls_R_factor_all          0.0599
_refine_ls_R_factor_gt           0.0497
_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^)+(0.0681P)^2^+0.2494P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1179
_refine_ls_wR_factor_ref         0.1227
_reflns_number_gt                1967
_reflns_number_total             2315
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            is2262.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
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 

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' 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_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_database_code               2217147
_cod_database_fobs_code          2217147