Regioisomeric allene dimer formation by the reaction of tetraarylbutatrienes with tetracyanoethene.
Ueta, Shoko; Hida, Kazuo; Nishiuchi, Masaki; Kawamura, Yasuhiko; Organic & biomolecular chemistry 12 (2014) 2784–2791; doi:10.1039/c3ob42574f

data_7153713
_publ_section_title
;
 Regioisomeric allene dimer formation by the reaction of
 tetraarylbutatrienes with tetracyanoethene.
;
_journal_issue                   17
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              2784
_journal_page_last               2791
_journal_paper_doi               10.1039/c3ob42574f
_journal_volume                  12
_journal_year                    2014
_chemical_formula_moiety         'C38 H28 N4 O2'
_chemical_formula_sum            'C38 H28 N4 O2'
_chemical_formula_weight         572.66
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_Int_Tables_number      2
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                102.539(2)
_cell_angle_beta                 96.811(2)
_cell_angle_gamma                113.9337(18)
_cell_formula_units_Z            2
_cell_length_a                   11.1289(4)
_cell_length_b                   12.3596(4)
_cell_length_c                   12.6371(4)
_cell_measurement_reflns_used    11032
_cell_measurement_temperature    108
_cell_measurement_theta_max      68.23
_cell_measurement_theta_min      3.69
_cell_volume                     1508.68(9)
_computing_cell_refinement       'RAPID AUTO'
_computing_data_collection       'RAPID AUTO (Rigaku, ????)'
_computing_data_reduction        'RAPID AUTO'
_computing_molecular_graphics    'CrystalStructure 4.0'
_computing_publication_material  'CrystalStructure 4.0 (Rigaku, 2010)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      108
_diffrn_detector_area_resol_mean 10.000
_diffrn_measured_fraction_theta_full 0.979
_diffrn_measured_fraction_theta_max 0.979
_diffrn_measurement_device_type  'Rigaku R-AXIS RAPID'
_diffrn_measurement_method       \w
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.54187
_diffrn_reflns_av_R_equivalents  0.0305
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            17455
_diffrn_reflns_theta_full        68.23
_diffrn_reflns_theta_max         68.23
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.628
_exptl_absorpt_correction_T_max  0.967
_exptl_absorpt_correction_T_min  0.836
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'ABSCOR (Rigaku, 1995)'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.261
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             600.00
_exptl_crystal_size_max          0.139
_exptl_crystal_size_mid          0.130
_exptl_crystal_size_min          0.053
_refine_diff_density_max         0.370
_refine_diff_density_min         -0.250
_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    constr
_refine_ls_number_parameters     401
_refine_ls_number_reflns         5408
_refine_ls_number_restraints     0
_refine_ls_R_factor_gt           0.0440
_refine_ls_shift/su_max          0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.0702P)^2^+0.3180P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.1348
_reflns_number_gt                4361
_reflns_number_total             5408
_reflns_threshold_expression     F^2^>2.0\s(F^2^)
_cod_data_source_file            c3ob42574f2.cif
_cod_data_source_block           KH347_2_110124
_cod_original_cell_volume        1508.69(9)
_cod_database_code               7153713