Naphthazarin-Polycyclic Conjugated Hydrocarbons and Iptycenes.
Dengiz, Cagatay; Luppino, Sarah P.; Gutierrez, Gregory D.; Swager, Timothy M.; The Journal of organic chemistry 82 (2017) 7470–7480; doi:10.1021/acs.joc.7b01170

data_4032741
_publ_section_title
;
 Naphthazarin-Polycyclic Conjugated Hydrocarbons and Iptycenes.
;
_journal_issue                   14
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              7470
_journal_page_last               7480
_journal_paper_doi               10.1021/acs.joc.7b01170
_journal_volume                  82
_journal_year                    2017
_chemical_formula_sum            'C24 H14 O4'
_chemical_formula_weight         366.35
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                78.2587(13)
_cell_angle_beta                 78.0645(13)
_cell_angle_gamma                67.9603(12)
_cell_formula_units_Z            2
_cell_length_a                   7.9933(7)
_cell_length_b                   8.6795(7)
_cell_length_c                   13.2531(11)
_cell_measurement_reflns_used    8161
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      31.43
_cell_measurement_theta_min      2.56
_cell_volume                     825.78(12)
_computing_cell_refinement       'SAINT 7.46A (Bruker-AXS, 2015)'
_computing_data_collection       'APEX2 v2011.4.0 (Bruker-AXS, 2015)'
_computing_data_reduction        'SAINT 7.46A (Bruker-AXS, 2015)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXT-2015 (Sheldrick, 2015)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 8.3
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker Smart APEX2 CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0244
_diffrn_reflns_av_unetI/netI     0.0197
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            21445
_diffrn_reflns_point_group_measured_fraction_full 0.997
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         29.575
_diffrn_reflns_theta_min         1.586
_diffrn_source
'I\mS micro-focus sealed tube, multilayer optics'
_exptl_absorpt_coefficient_mu    0.100
_exptl_absorpt_correction_T_max  0.7462
_exptl_absorpt_correction_T_min  0.6931
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2009)'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.473
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             380
_exptl_crystal_size_max          0.275
_exptl_crystal_size_mid          0.070
_exptl_crystal_size_min          0.040
_refine_diff_density_max         0.450
_refine_diff_density_min         -0.248
_refine_diff_density_rms         0.052
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.045
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     259
_refine_ls_number_reflns         4607
_refine_ls_number_restraints     456
_refine_ls_restrained_S_all      0.998
_refine_ls_R_factor_all          0.0506
_refine_ls_R_factor_gt           0.0428
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0532P)^2^+0.4593P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1130
_refine_ls_wR_factor_ref         0.1186
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3909
_reflns_number_total             4607
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jo7b01170_si_004.cif
_cod_data_source_block           x17084
_cod_database_code               4032741
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.973
_shelx_estimated_absorpt_t_max   0.996
_shelx_res_checksum              55382
_shelx_hkl_checksum              7050