Open-Shell and Antiaromatic Character Induced by the Highly Symmetric Geometry of the Planar Heptalene Structure: Synthesis and Characterization of a Nonalternant Isomer of Bisanthene.
Konishi, Akihito; Horii, Koki; Shiomi, Daisuke; Sato, Kazunobu; Takui, Takeji; Yasuda, Makoto; Journal of the American Chemical Society 141 (2019) 10165–10170; doi:10.1021/jacs.9b04080

data_4128026
_publ_section_title
;
 Open-Shell and Antiaromatic Character Induced by the Highly Symmetric
 Geometry of the Planar Heptalene Structure: Synthesis and
 Characterization of a Nonalternant Isomer of Bisanthene.
;
_journal_issue                   26
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              10165
_journal_page_last               10170
_journal_paper_doi               10.1021/jacs.9b04080
_journal_volume                  141
_journal_year                    2019
_chemical_formula_moiety         'C52 H46 B2 F8'
_chemical_formula_sum            'C52 H46 B2 F8'
_chemical_formula_weight         844.54
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-I 2ya'
_space_group_name_H-M_alt        'I 1 2/a 1'
_symmetry_space_group_name_Hall  '-I 2ya'
_symmetry_space_group_name_H-M   'I 1 2/a 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.0000
_cell_angle_beta                 90.756(3)
_cell_angle_gamma                90.0000
_cell_formula_units_Z            4
_cell_length_a                   28.2664(9)
_cell_length_b                   8.0077(2)
_cell_length_c                   18.2814(5)
_cell_measurement_reflns_used    8579
_cell_measurement_temperature    123
_cell_measurement_theta_max      30.43
_cell_measurement_theta_min      2.22
_cell_volume                     4137.6(2)
_computing_cell_refinement       'CrysAlisPro 1.171.39.46e (Rigaku OD, 2018)'
_computing_data_collection       'CrysAlisPro 1.171.39.46e (Rigaku OD, 2018)'
_computing_data_reduction        'CrysAlisPro 1.171.39.46e (Rigaku OD, 2018)'
_computing_molecular_graphics    'CrystalStructure 4.2.5'
_computing_publication_material  'CrystalStructure 4.2.5 (Rigaku, 2017)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SIR92 (Altomare, et al., 1994)'
_diffrn_ambient_temperature      123
_diffrn_detector_area_resol_mean 5.811
_diffrn_measured_fraction_theta_full 0.9982
_diffrn_measured_fraction_theta_max 0.805
_diffrn_measurement_device_type  'Rigaku XtaLAB P200'
_diffrn_measurement_method       \w
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0314
_diffrn_reflns_Laue_measured_fraction_full 0.000
_diffrn_reflns_Laue_measured_fraction_max 0.000
_diffrn_reflns_limit_h_max       34
_diffrn_reflns_limit_h_min       -35
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            19849
_diffrn_reflns_point_group_measured_fraction_full 0.000
_diffrn_reflns_point_group_measured_fraction_max 0.000
_diffrn_reflns_theta_full        30.900
_diffrn_reflns_theta_max         30.900
_diffrn_reflns_theta_min         2.228
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.102
_exptl_absorpt_correction_T_max  0.993
_exptl_absorpt_correction_T_min  0.605
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_exptl_absorpt_process_details
;
CrysAlisPro 1.171.39.46e (Rigaku Oxford Diffraction, 2018)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            metalliclightpurp
_exptl_crystal_density_diffrn    1.356
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1760.00
_exptl_crystal_size_max          0.404
_exptl_crystal_size_mid          0.083
_exptl_crystal_size_min          0.067
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_refine_ls_number_parameters     280
_refine_ls_number_reflns         5265
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0883
_refine_ls_R_factor_gt           0.0667
_refine_ls_shift/su_max          0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.0800P)^2^+7.9504P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1654
_refine_ls_wR_factor_ref         0.1788
_reflns_number_gt                4006
_reflns_number_total             5265
_reflns_threshold_expression     F^2^>2.0\s(F^2^)
_cod_data_source_file            ja9b04080_si_003.cif
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_cod_depositor_comments
;
The following automatic conversions were performed:
data name '_atom_site_symetry_multiplicity' replaced with
'_atom_site_symmetry_multiplicity' as specified in the replacement
file
'/home/data/users/saulius/crontab/automatic-downloads/current/ACS/lib/lists/replacement-tags.lst'.

Automatic conversion script
Id: cif_correct_tags 4968 2017-02-21 14:55:21Z antanas 
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_cod_database_code               4128026