[4 + 2] Cycloaddition Reaction To Approach Diazatwistpentacenes: Synthesis, Structures, Physical Properties, and Self-assembly.
Li, Junbo; Li, Peizhou; Wu, Jiansheng; Gao, Junkuo; Xiong, Wei-Wei; Zhang, Guodong; Zhao, Yanli; Zhang, Qichun; The Journal of organic chemistry 79 (2014) 4438–4445; doi:10.1021/jo500400d

data_4029374
_publ_section_title
;
 [4 + 2] Cycloaddition Reaction To Approach Diazatwistpentacenes:
 Synthesis, Structures, Physical Properties, and Self-assembly.
;
_journal_issue                   10
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              4438
_journal_page_last               4445
_journal_paper_doi               10.1021/jo500400d
_journal_volume                  79
_journal_year                    2014
_chemical_formula_moiety         'C51 H32 Cl2 N2'
_chemical_formula_sum            'C51 H32 Cl2 N2'
_chemical_formula_weight         743.67
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_symmetry_cell_setting           triclinic
_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
_audit_creation_method           SHELXL-97
_cell_angle_alpha                85.393(3)
_cell_angle_beta                 89.268(3)
_cell_angle_gamma                73.761(3)
_cell_formula_units_Z            2
_cell_length_a                   10.9885(4)
_cell_length_b                   11.6518(4)
_cell_length_c                   15.3264(6)
_cell_measurement_reflns_used    6058
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      72.7450
_cell_measurement_theta_min      4.7000
_cell_volume                     1877.85(12)
_computing_cell_refinement
'CrysAlisPro, Agilent Technologies,Version 1.171.36.21 (release 14-08-2012 CrysAlis171 .NET)'
_computing_data_collection
'CrysAlisPro, Agilent Technologies,Version 1.171.36.21 (release 14-08-2012 CrysAlis171 .NET)'
_computing_data_reduction
'CrysAlisPro, Agilent Technologies,Version 1.171.36.21 (release 14-08-2012 CrysAlis171 .NET)'
_computing_molecular_graphics    'DIAMOND. Version 3.0. Crystal Impact'
_computing_publication_material  'Windows Word 2003'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 10.6613
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.989
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, Atlas'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0396
_diffrn_reflns_av_sigmaI/netI    0.0389
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            12575
_diffrn_reflns_theta_full        70.00
_diffrn_reflns_theta_max         70.00
_diffrn_reflns_theta_min         3.96
_exptl_absorpt_coefficient_mu    1.856
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.52233
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'CrysAlisPro, Agilent Technologies'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.312
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       flake
_exptl_crystal_F_000             768
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.11
_refine_diff_density_max         0.754
_refine_diff_density_min         -0.804
_refine_diff_density_rms         0.068
_refine_ls_extinction_coef       0.0034(10)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.037
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     613
_refine_ls_number_reflns         7058
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.037
_refine_ls_R_factor_all          0.0912
_refine_ls_R_factor_gt           0.0798
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1698P)^2^+0.6404P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2375
_refine_ls_wR_factor_ref         0.2585
_reflns_number_gt                5641
_reflns_number_total             7058
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo500400d_si_001.cif
_cod_data_source_block           x
_cod_depositor_comments
;
 Marking attached hydrogen atoms.

 Antanas Vaitkus,
 2018-01-29

 Adding full bibliography for 4029372--4029374.cif.
;
_cod_original_cell_volume        1877.86(12)
_cod_database_code               4029374