Diethyl 2,6-bis(4-methylbenzyl)-4,8-dioxo-2,3,6,7-tetrahydro-1<i>H</i>,5<i>H</i>-2,3a,4a,6,7a,8a-hexaazacyclopenta[<i>def</i>]fluorene-8b,8c-dicarboxylate
Guo, Hui-Zhen; She, Neng-Fang; Li, Yi-Tao; Acta Crystallographica Section E 62 (2006) o5596–o5597; doi:10.1107/S1600536806046927

data_2211620
_publ_section_title
;Diethyl
 2,6-bis(4-methylbenzyl)-4,8-dioxo-2,3,6,7-tetrahydro-1<i>H</i>,5<i>H</i>-2,3a,4a,6,7a,8a-hexaazacyclopenta[<i>def</i>]fluorene-8b,8c-dicarboxylate
;
_journal_coeditor_code           SJ2153
_journal_issue                   12
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o5596
_journal_page_last               o5597
_journal_paper_doi               10.1107/S1600536806046927
_journal_volume                  62
_journal_year                    2006
_chemical_formula_iupac          'C30 H36 N6 O6'
_chemical_formula_moiety         'C30 H36 N6 O6'
_chemical_formula_sum            'C30 H36 N6 O6'
_chemical_formula_weight         576.65
_chemical_name_systematic
;
Diethyl 2,6-bis(4-methylbenzyl)-4,8-dioxo
2,3,6,7-tetrahydro-1H,5H-2,3a,4a,6,7a,8a-
hexaazacyclopenta[def]fluorene-8b,8c-dicarboxylate
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_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                 94.1600(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   16.9160(8)
_cell_length_b                   13.6411(6)
_cell_length_c                   12.9597(2)
_cell_measurement_reflns_used    5736
_cell_measurement_temperature    292(2)
_cell_measurement_theta_max      22.28
_cell_measurement_theta_min      2.41
_cell_volume                     2982.6(2)
_computing_cell_refinement       'SAINT (Bruker, 1999)'
_computing_data_collection       'SMART (Bruker, 1997)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    'PLATON (Spek, 2003)'
_computing_publication_material  'SHELXTL (Sheldrick, 1997b)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997a)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997a)'
_diffrn_ambient_temperature      292(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker SMART 4K 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  0.0676
_diffrn_reflns_av_sigmaI/netI    0.0461
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            33094
_diffrn_reflns_theta_full        27.00
_diffrn_reflns_theta_max         27.00
_diffrn_reflns_theta_min         1.92
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.091
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.284
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1224
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.302
_refine_diff_density_min         -0.239
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.011
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     455
_refine_ls_number_reflns         6504
_refine_ls_number_restraints     95
_refine_ls_restrained_S_all      1.047
_refine_ls_R_factor_all          0.1047
_refine_ls_R_factor_gt           0.0645
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details     'please provide'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1770
_refine_ls_wR_factor_ref         0.1970
_reflns_number_gt                3764
_reflns_number_total             6504
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            sj2153.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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 'Monoclinic' changed to 'monoclinic'
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_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2211620
_cod_database_fobs_code          2211620