2,5-Bis(4-<i>tert</i>-butylphenyl)-3,4-dinitrothiophene
Ping-Hsin Huang; Yu-Da Cheng; Yuh-Sheng Wen; Ming-Chang P. Yeh; Jiann T. Lin; Acta Crystallographica Section E 61 (2005) o3168–o3169; doi:10.1107/S1600536805026097

data_2207029
_publ_section_title
;
 2,5-Bis(4-<i>tert</i>-butylphenyl)-3,4-dinitrothiophene
;
_journal_coeditor_code           OB6565
_journal_issue                   10
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o3168
_journal_page_last               o3169
_journal_paper_doi               10.1107/S1600536805026097
_journal_volume                  61
_journal_year                    2005
_chemical_formula_iupac          'C24 H26 N2 O4 S'
_chemical_formula_moiety         'C24 H26 N2 O4 S'
_chemical_formula_sum            'C24 H26 N2 O4 S'
_chemical_formula_weight         438.53
_chemical_name_systematic
;
2,5-Bis(4-tert-butylphenyl)-3,4-dinitrothiophene
;
_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                 99.349(9)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.026(3)
_cell_length_b                   11.120(2)
_cell_length_c                   14.491(3)
_cell_measurement_reflns_used    7514
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      31.21
_cell_measurement_theta_min      2.85
_cell_volume                     2230.1(8)
_computing_cell_refinement       'SAINT (Bruker, 2001)'
_computing_data_collection       'SMART (Bruker, 2001)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    'ORTEP-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker SMART 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  0.0252
_diffrn_reflns_av_sigmaI/netI    0.0179
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            32280
_diffrn_reflns_theta_full        25.03
_diffrn_reflns_theta_max         25.03
_diffrn_reflns_theta_min         2.32
_exptl_absorpt_coefficient_mu    0.178
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.306
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             928
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.222
_refine_diff_density_min         -0.234
_refine_ls_extinction_coef       0.0031(5)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL97
_refine_ls_goodness_of_fit_ref   1.036
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     281
_refine_ls_number_reflns         3915
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.036
_refine_ls_R_factor_all          0.0341
_refine_ls_R_factor_gt           0.0302
_refine_ls_shift/su_max          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^)+(0.0326P)^2^+1.2009P] where P = (Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0742
_refine_ls_wR_factor_ref         0.0772
_reflns_number_gt                3530
_reflns_number_total             3915
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ob6565.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_cell_volume        2230.2(8)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2207029
_cod_database_fobs_code          2207029