Diphenoquinone Redux
Néron, Sébastien; Morency, Mathieu; Chen, Liguo; Maris, Thierry; Rocherfort, Dominic; Iftimie, Radu; Wuest, James D.; Journal of Organic Chemistry 87 (2022) 7673–7695; doi:10.1021/acs.joc.2c00260

data_4039004
_publ_contact_author_id_orcid    0000-0001-9731-4046
_publ_section_title
;
 Diphenoquinone Redux
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              7673
_journal_page_last               7695
_journal_paper_doi               10.1021/acs.joc.2c00260
_journal_volume                  87
_journal_year                    2022
_chemical_formula_moiety         'C12 H4 Br4 O2'
_chemical_formula_sum            'C12 H4 Br4 O2'
_chemical_formula_weight         499.79
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_contact_author_email      thierry.maris@umontreal.ca
_audit_contact_author_name       'Thierry Maris'
_audit_contact_author_phone      '+1 514 340 4711 2579'
_audit_creation_date             2021-07-20
_audit_creation_method
;
FinalCif V85 by Daniel Kratzert, Freiburg 2021,
https://github.com/dkratzert/FinalCif
;
_cell_angle_alpha                90
_cell_angle_beta                 98.773(1)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   4.8559(1)
_cell_length_b                   10.7212(3)
_cell_length_c                   12.4441(3)
_cell_measurement_reflns_used    4971
_cell_measurement_temperature    100
_cell_measurement_theta_max      71.611
_cell_measurement_theta_min      5.474
_cell_volume                     640.27(3)
_computing_cell_refinement
;
SAINT (2020) V8.40B; Integration Software for Single Crystal Data.
Bruker AXS Inc., Madison, WI 53719-1173.
;
_computing_data_collection
;
APEX 3 (2019) Bruker AXS Inc., Madison, WI 53719-1173.
;
_computing_data_reduction
;
SAINT (2020) V8.40B; Integration Software for Single Crystal Data.
Bruker AXS Inc., Madison, WI 53719-1173.
;
_computing_molecular_graphics    'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL  (Sheldrick, 2008)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      100
_diffrn_detector                 'CCD area detector'
_diffrn_detector_area_resol_mean 8.3
_diffrn_detector_type            'Bruker APEX2 CCD'
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device       'three-circle diffractometer'
_diffrn_measurement_device_type  'Bruker Smart APEX'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_collimation    'Focusing mirrors'
_diffrn_radiation_monochromator  'Quazar MX Mirror Optics'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0665
_diffrn_reflns_av_unetI/netI     0.0109
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       5
_diffrn_reflns_limit_h_min       -5
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            1248
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         71.708
_diffrn_reflns_theta_min         5.474
_diffrn_source                   'Microfocus Source'
_diffrn_source_current           0.65
_diffrn_source_target            Cu
_diffrn_source_type              'Incoatec I\mS High Brilliance Microsource'
_diffrn_source_voltage           44.8
_exptl_absorpt_coefficient_mu    15.271
_exptl_absorpt_correction_T_max  0.1558
_exptl_absorpt_correction_T_min  0.0361
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
 TWINABS-2012/1 (Bruker,2012) was used for absorption correction.

Final HKLF 4 output contains 45168 reflections, Rint = 0.0661
 (36853 with I > 3sig(I), Rint = 0.0655)
;
_exptl_crystal_colour            'clear light red'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   light
_exptl_crystal_colour_primary    red
_exptl_crystal_density_diffrn    2.592
_exptl_crystal_description       Block
_exptl_crystal_F_000             464
_exptl_crystal_recrystallization_method
;
Crystallised from DCM+Hexane/Cyclohexane
;
_exptl_crystal_size_max          0.13
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.704
_refine_diff_density_min         -0.809
_refine_diff_density_rms         0.176
_refine_ls_extinction_coef       .
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.159
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     82
_refine_ls_number_reflns         1248
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.159
_refine_ls_R_factor_all          0.0349
_refine_ls_R_factor_gt           0.0348
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
;
w=1/[\s^2^(Fo^2^)+(0.0675P)^2^+0.9538P] where P=(Fo^2^+2Fc^2^)/3
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0964
_refine_ls_wR_factor_ref         0.0964
_reflns_Friedel_coverage         0.000
_reflns_Friedel_fraction_full    .
_reflns_Friedel_fraction_max     .
_reflns_number_gt                1246
_reflns_number_total             1248
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            TBDPQ.cif
_cod_data_source_block           jw2350
_cod_database_code               4039004
_shelx_estimated_absorpt_t_min   0.241
_shelx_estimated_absorpt_t_max   0.375
_cod_database_fobs_code 4039004