Tetraphenylhexaazaanthracenes: 16π Weakly Antiaromatic Species with Singlet Ground States.
Constantinides, Christos P.; Zissimou, Georgia A.; Berezin, Andrey A.; Ioannou, Theodosia A.; Manoli, Maria; Tsokkou, Demetra; Theodorou, Eleni; Hayes, Sophia C.; Koutentis, Panayiotis A.; Organic letters 17 (2015) 4026–4029; doi:10.1021/acs.orglett.5b01923

data_1529362
_publ_section_title
;
 Tetraphenylhexaazaanthracenes: 16\p Weakly Antiaromatic Species with
 Singlet Ground States.
;
_journal_issue                   16
_journal_name_full               'Organic letters'
_journal_page_first              4026
_journal_page_last               4029
_journal_paper_doi               10.1021/acs.orglett.5b01923
_journal_volume                  17
_journal_year                    2015
_chemical_formula_moiety         'C32 H22 N6'
_chemical_formula_sum            'C32 H22 N6'
_chemical_formula_weight         490.56
_chemical_name_systematic
; 
 ? 
;
_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                 96.112(7)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   15.6612(13)
_cell_length_b                   9.6881(8)
_cell_length_c                   16.3377(10)
_cell_measurement_reflns_used    3484
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      67.1870
_cell_measurement_theta_min      3.7139
_cell_volume                     2464.8(3)
_computing_cell_refinement       'CrysAlis RED'
_computing_data_collection       'CrysAlis CCD'
_computing_data_reduction        'CrysAlis RED'
_computing_molecular_graphics
;
 DIAMOND (Brandenburg, 2006)
 MERCURY (Bruno et al. 2002)
;
_computing_publication_material  'WINGX (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 10.4223
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, Atlas'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_source         'SuperNova (Cu) X-ray Source'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0268
_diffrn_reflns_av_sigmaI/netI    0.0312
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            9363
_diffrn_reflns_theta_full        66.99
_diffrn_reflns_theta_max         66.99
_diffrn_reflns_theta_min         5.32
_exptl_absorpt_coefficient_mu    0.638
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.84164
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'Empirical absorption correction (CrysAlis RED, Oxford Diffraction)'
_exptl_crystal_colour            'dark red'
_exptl_crystal_density_diffrn    1.322
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       rod
_exptl_crystal_F_000             1024
_exptl_crystal_size_max          0.11
_exptl_crystal_size_mid          0.06
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.280
_refine_diff_density_min         -0.202
_refine_diff_density_rms         0.044
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.043
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     343
_refine_ls_number_reflns         4395
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.043
_refine_ls_R_factor_all          0.0550
_refine_ls_R_factor_gt           0.0423
_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^)+(0.0672P)^2^+0.2988P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1110
_refine_ls_wR_factor_ref         0.1202
_reflns_number_gt                3529
_reflns_number_total             4395
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol5b01923_si_003.cif
_cod_data_source_block           shelxl
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 3271 2015-04-21 07:52:19Z andrius 

 Adding full bibliography for 1529362--1529363.cif.
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               1529362