Centrohexaindane: six benzene rings mutually fixed in three dimensions - solid-state structure and six-fold nitration.
Kuck, Dietmar; Linke, Jens; Teichmann, Lisa Christin; Barth, Dieter; Tellenbröker, Jörg; Gestmann, Detlef; Neumann, Beate; Stammler, Hans-Georg; Bögge, Hartmut; Physical chemistry chemical physics : PCCP 18 (2016) 11722–11737; doi:10.1039/c5cp07005h

data_7223532
_publ_section_title
;
 Centrohexaindane: six benzene rings mutually fixed in three dimensions -
 solid-state structure and six-fold nitration.
;
_journal_issue                   17
_journal_name_full               'Physical chemistry chemical physics : PCCP'
_journal_page_first              11722
_journal_page_last               11737
_journal_paper_doi               10.1039/c5cp07005h
_journal_volume                  18
_journal_year                    2016
_chemical_formula_moiety         'C41 H24, 0.5 (C8 H10)'
_chemical_formula_sum            'C45 H29'
_chemical_formula_weight         569.68
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_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
_audit_update_record
;
2015-11-12 deposited with the CCDC.
2015-12-16 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 91.5300(9)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.42000(10)
_cell_length_b                   14.3840(2)
_cell_length_c                   24.1070(3)
_cell_measurement_reflns_used    6914
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.485
_cell_measurement_theta_min      2.910
_cell_volume                     2918.64(6)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'KappaCCD '
_computing_data_reduction        'Denzo and Scalepak (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'SHELXTL-PLUS (1990)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       CCD
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.049
_diffrn_reflns_av_sigmaI/netI    0.0331
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            59085
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         2.91
_exptl_absorpt_coefficient_mu    0.073
_exptl_absorpt_correction_T_max  0.9927
_exptl_absorpt_correction_T_min  0.9855
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Denzo and Scalepak (Otwinowski & Minor, 1997)'
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.296
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       fragment
_exptl_crystal_F_000             1196
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.940
_refine_diff_density_min         -0.395
_refine_diff_density_rms         0.051
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.054
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     407
_refine_ls_number_reflns         6664
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.054
_refine_ls_R_factor_all          0.0654
_refine_ls_R_factor_gt           0.0484
_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^)+(0.0649P)^2^+0.9887P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1204
_refine_ls_wR_factor_ref         0.1301
_reflns_number_gt                5184
_reflns_number_total             6664
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5cp07005h2.cif
_cod_data_source_block           kuck01
_cod_depositor_comments
'Adding full bibliography for 7223530--7223532.cif.'
_cod_database_code               7223532