Ambipolar organic semiconductors from electron-accepting cyclopenta-fused anthracene
Hai Xia; Danqing Liu; Xiaomin Xua; Qian Miao; Chem.Commun. 49 (2013) 4301–; doi:10.1039/c2cc34992b

data_7109189
_publ_section_title
;
 Ambipolar organic semiconductors from electron-accepting cyclopenta-fused
 anthracene
;
_journal_name_full               Chem.Commun.
_journal_page_first              4301
_journal_paper_doi               10.1039/c2cc34992b
_journal_volume                  49
_journal_year                    2013
_chemical_formula_sum            'C28 H26 Si2'
_chemical_formula_weight         418.67
_chemical_name_systematic
;
2,7-bis((trimethylsilyl)ethynyl)cyclopenta[hi]aceanthrylene
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                82.438(3)
_cell_angle_beta                 87.220(3)
_cell_angle_gamma                63.216(3)
_cell_formula_units_Z            1
_cell_length_a                   6.1885(10)
_cell_length_b                   6.8198(12)
_cell_length_c                   16.531(3)
_cell_measurement_reflns_used    59
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      15
_cell_measurement_theta_min      15
_cell_volume                     617.36(19)
_computing_cell_refinement       'BRUKER KAPPA APEXII DUO DIFFRACTOMETER'
_computing_data_collection       'BRUKER KAPPA APEXII DUO DIFFRACTOMETER'
_computing_data_reduction        'BRUKER KAPPA APEXII DUO DIFFRACTOMETER'
_computing_molecular_graphics    'SIEMENS SHELXTL'
_computing_publication_material  'SIEMENS SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.952
_diffrn_measured_fraction_theta_max 0.952
_diffrn_measurement_device_type  'BRUKER KAPPA APEXII DUO DIFFRACTOMETER'
_diffrn_measurement_method       'PHI & OMEGA SCAN'
_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  0.0702
_diffrn_reflns_av_sigmaI/netI    0.0711
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            5967
_diffrn_reflns_theta_full        25.25
_diffrn_reflns_theta_max         25.25
_diffrn_reflns_theta_min         3.69
_exptl_absorpt_coefficient_mu    0.155
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.5960
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    1.126
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             222
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.290
_refine_diff_density_min         -0.298
_refine_diff_density_rms         0.058
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.014
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     136
_refine_ls_number_reflns         2130
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.014
_refine_ls_R_factor_all          0.0773
_refine_ls_R_factor_gt           0.0619
_refine_ls_shift/su_max          0.008
_refine_ls_shift/su_mean         0.002
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1240P)^2^+0.0470P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1694
_refine_ls_wR_factor_ref         0.1875
_reflns_number_gt                1674
_reflns_number_total             2130
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2cc34992b.txt
_cod_data_source_block           bisTMSacetyleneDCPA
_cod_original_cell_volume        617.37(18)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7109189