Diethyl 4,10-dibromo-5,11-methano-6<i>H</i>,12<i>H</i>-dibenzo[<i>b</i>,<i>f</i>][1,5]diazocine-2,8-dicarboxylate
Bhuiyan, M. Delower H.; Try, Andrew C.; Klepetko, John; Turner, Peter; Acta Crystallographica Section E 62 (2006) o4887–o4888; doi:10.1107/S1600536806040505

data_2211056
_publ_section_title
;Diethyl
 4,10-dibromo-5,11-methano-6<i>H</i>,12<i>H</i>-dibenzo[<i>b</i>,<i>f</i>][1,5]diazocine-2,8-dicarboxylate
;
_journal_coeditor_code           HK2142
_journal_issue                   11
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o4887
_journal_page_last               o4888
_journal_paper_doi               10.1107/S1600536806040505
_journal_volume                  62
_journal_year                    2006
_chemical_formula_moiety         'C21 H20 Br2 N2 O4'
_chemical_formula_sum            'C21 H20 Br2 N2 O4'
_chemical_formula_weight         524.21
_chemical_melting_point          463.29
_chemical_name_common
;
4,10-dibromo-2,8-diethyl ester Tr\"oger's base
;
_chemical_name_systematic
;
4,10-Dibromo-2,8-di(ethoxycarbonyl)-6H,12H-5,11-methanodibenzo[b,f][1,5]
diazocine
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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                 97.333(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.858(2)
_cell_length_b                   13.017(3)
_cell_length_c                   14.325(3)
_cell_measurement_reflns_used    879
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      28.304
_cell_measurement_theta_min      2.718
_cell_volume                     2008.1(7)
_computing_cell_refinement       SAINT
_computing_data_collection       'SMART (Bruker, 1995)'
_computing_data_reduction        'SAINT and XPREP (Bruker, 1995)'
_computing_molecular_graphics
;
Xtal3.6 (Hall <i>et al.</i>,  1999), ORTEPII (Johnson, 1976)
;
_computing_publication_material  'WinGX (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR97 (Altomare <i>et al.</i>,  1999)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.967
_diffrn_measurement_device_type  'Bruker SMART 1000 CCD diffractometer'
_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  0.1133
_diffrn_reflns_av_sigmaI/netI    0.0608
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            9748
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         28.30
_diffrn_reflns_theta_min         2.45
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    4.068
_exptl_absorpt_correction_T_max  0.36887
_exptl_absorpt_correction_T_min  0.17419
_exptl_absorpt_correction_type   gaussian
_exptl_absorpt_process_details
;
Gaussian (Coppens <i>et al.</i>,  1965) (XPREP; Bruker, 1995)
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.734
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1048
_exptl_crystal_size_max          0.513
_exptl_crystal_size_mid          0.358
_exptl_crystal_size_min          0.305
_refine_diff_density_max         0.548
_refine_diff_density_min         -0.382
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.039
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     133
_refine_ls_number_reflns         2423
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.039
_refine_ls_R_factor_all          0.0294
_refine_ls_R_factor_gt           0.0253
_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^)+(0.0217P)^2^+0.5345P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0694
_refine_ls_wR_factor_ref         0.0710
_reflns_number_gt                2141
_reflns_number_total             2423
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            hk2142.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:
'_exptl_absorpt_correction_type' value 'Gaussian' changed to 'gaussian'
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:

'_chemical_melting_point' value '463.29K' was changed to '463.29' -
the value should be numeric and without a unit designator.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 

The following automatic conversions were performed:

'_chemical_melting_point' value '463.29K' was changed to '463.29' -
the value should be numeric and without a unit
designator.

'_exptl_absorpt_correction_type' value 'Gaussian'
changed to 'gaussian' 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      'C 2/c'
_cod_database_code               2211056
_cod_database_fobs_code          2211056