Antiaromatic twinned triphenylene discotics showing nematic phases and 2-dimensional π-overlap in the solid state
Zhang, Liang; Gopee, Hemant; Hughes, David L.; Cammidge, Andrew N.; Chemical Communications 46 (2010) 4255–4257; doi:10.1039/c0cc00311e

data_7111683
_publ_section_title
;
 Antiaromatic twinned triphenylene discotics showing nematic phases and
 2-dimensional \p-overlap in the solid state
;
_journal_issue                   24
_journal_name_full               'Chemical Communications'
_journal_page_first              4255
_journal_page_last               4257
_journal_paper_doi               10.1039/c0cc00311e
_journal_volume                  46
_journal_year                    2010
_chemical_formula_moiety         'C92 H116 O8'
_chemical_formula_structural     bis-(tetrahexoxy-triphenylenyl-tetradiynyl)
_chemical_formula_sum            'C92 H116 O8'
_chemical_formula_weight         1349.85
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yab'
_symmetry_space_group_name_H-M   'P 1 21/a 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                 95.592(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   8.8608(6)
_cell_length_b                   27.2688(16)
_cell_length_c                   16.3205(12)
_cell_measurement_temperature    120(2)
_cell_volume                     3924.6(5)
_computing_cell_refinement
'DENZO (Otwinowski & Minor, 1997) & COLLECT (Hooft, R.W.W., 1998)'
_computing_data_collection       'COLLECT (Hooft, R.W.W., 1998)'
_computing_data_reduction
'DENZO (Otwinowski & Minor, 1997) & COLLECT (Hooft, R.W.W., 1998)'
_computing_molecular_graphics    'ORTEP (Johnson, 1971 and Farrugia, 1997)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      120(2)
_diffrn_detector_area_resol_mean 4096x4096pixels/62x62mm
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type
'Bruker-Nonius APEX II CCD camera on \k-goniostat'
_diffrn_measurement_method       '\f & \w scans'
_diffrn_radiation_monochromator  '10cm confocal mirrors'
_diffrn_radiation_source         'Bruker-Nonius FR591 rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0697
_diffrn_reflns_av_sigmaI/netI    0.0596
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       29
_diffrn_reflns_limit_k_min       -29
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            21077
_diffrn_reflns_theta_full        22.50
_diffrn_reflns_theta_max         22.50
_diffrn_reflns_theta_min         2.92
_exptl_absorpt_coefficient_mu    0.071
_exptl_absorpt_correction_T_max  1.00
_exptl_absorpt_correction_T_min  0.806
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS 2007/2 (Sheldrick, G.M., 2007)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.142
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1464
_exptl_crystal_size_max          0.1
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.221
_refine_diff_density_min         -0.232
_refine_diff_density_rms         0.050
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.126
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     479
_refine_ls_number_reflns         5106
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.126
_refine_ls_R_factor_all          0.0996
_refine_ls_R_factor_gt           0.0657
_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^)+(0.0239P)^2^+5.0862P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1278
_refine_ls_wR_factor_ref         0.1411
_reflns_number_gt                3735
_reflns_number_total             5106
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            c0cc00311esup1.cif
_cod_data_source_block           09src1148
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      P21/a
_cod_database_code               7111683