Nonlinear Polyfused Aromatics with Extended π-Conjugation from Phenanthrotriphenylene, Tetracene, and Pentacene: Syntheses, Crystal Packings, and Properties.
Kumar, Sushil; Huang, Ding-Chi; Venkateswarlu, Samala; Tao, Yu-Tai; The Journal of organic chemistry 83 (2018) 11614–11622; doi:10.1021/acs.joc.8b01582

data_4035222
_publ_section_title
;
 Nonlinear Polyfused Aromatics with Extended \p-Conjugation from
 Phenanthrotriphenylene, Tetracene, and Pentacene: Syntheses, Crystal
 Packings, and Properties.
;
_journal_issue                   19
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              11614
_journal_page_last               11622
_journal_paper_doi               10.1021/acs.joc.8b01582
_journal_volume                  83
_journal_year                    2018
_chemical_formula_moiety         'C38 H22'
_chemical_formula_sum            'C38 H22'
_chemical_formula_weight         478.55
_space_group_IT_number           61
_space_group_name_Hall           '-P 2ac 2ab'
_space_group_name_H-M_alt        'P b c a'
_symmetry_cell_setting           orthorhombic
_symmetry_Int_Tables_number      61
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_atom_sites_solution_hydrogens   difmap
_audit_creation_date             2017-05-05T16:44:08-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   14.0177(5)
_cell_length_b                   7.7400(3)
_cell_length_c                   20.7641(7)
_cell_measurement_reflns_used    9218
_cell_measurement_temperature    100.0(2)
_cell_measurement_theta_max      28.06
_cell_measurement_theta_min      2.44
_cell_volume                     2252.84(14)
_computing_cell_refinement       'APEX3 v2015.9-0 (Bruker AXS)'
_computing_data_collection       'Bruker Instrument Service v2012.12.0.3'
_computing_data_reduction        'SAINT V8.35A (Bruker AXS Inc., 2015)'
_computing_molecular_graphics    'shelXle (C.B. Huebschle, rev 740)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-2013 (Sheldrick, 2013)'
_computing_structure_solution    'XT, VERSION 2014/4'
_diffrn_ambient_temperature      100.0(2)
_diffrn_measured_fraction_theta_full 1
_diffrn_measured_fraction_theta_max 1
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0549
_diffrn_reflns_av_unetI/netI     0.022
_diffrn_reflns_Laue_measured_fraction_full 1
_diffrn_reflns_Laue_measured_fraction_max 1
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            45586
_diffrn_reflns_point_group_measured_fraction_full 1
_diffrn_reflns_point_group_measured_fraction_max 1
_diffrn_reflns_theta_full        25
_diffrn_reflns_theta_max         27.103
_diffrn_reflns_theta_min         1.962
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.08
_exptl_absorpt_correction_T_max  0.9705
_exptl_absorpt_correction_T_min  0.8748
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker SADABS, 1996'
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.411
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1000
_exptl_crystal_size_max          0.479
_exptl_crystal_size_mid          0.382
_exptl_crystal_size_min          0.245
_refine_diff_density_max         0.982
_refine_diff_density_min         -0.216
_refine_diff_density_rms         0.053
_refine_ls_extinction_coef       0.0027(8)
_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   1.053
_refine_ls_hydrogen_treatment    refxyz
_refine_ls_matrix_type           full
_refine_ls_number_parameters     216
_refine_ls_number_reflns         2478
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.053
_refine_ls_R_factor_all          0.0597
_refine_ls_R_factor_gt           0.0493
_refine_ls_shift/su_max          0
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0527P)^2^+2.1805P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1209
_refine_ls_wR_factor_ref         0.1281
_reflns_Friedel_coverage         0
_reflns_number_gt                2105
_reflns_number_total             2478
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jo8b01582_si_005.cif
_cod_data_source_block           i16746
_cod_depositor_comments
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The following automatic conversions were performed:

data item '_exptl_crystal_density_meas' value 'none' was changed to
'?' -- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
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_cod_database_code               4035222