Crystal Engineering of Biphenylene-Containing Acenes for High-Mobility Organic Semiconductors.
Wang, Jinlian; Chu, Ming; Fan, Jian-Xun; Lau, Tsz-Ki; Ren, Ai-Min; Lu, Xinhui; Miao, Qian; Journal of the American Chemical Society 141 (2019) 3589–3596; doi:10.1021/jacs.8b12671

data_4127812
_publ_section_title
;
 Crystal Engineering of Biphenylene-Containing Acenes for High-Mobility
 Organic Semiconductors.
;
_journal_issue                   8
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              3589
_journal_page_last               3596
_journal_paper_doi               10.1021/jacs.8b12671
_journal_volume                  141
_journal_year                    2019
_chemical_formula_sum            'C60 H66 Si2'
_chemical_formula_weight         843.30
_chemical_name_systematic
5,9,14,18-tetramethyl-7,16-bis(triisopropylethynyl)bisnaphtho[2',3':3,4]cyclobut[1,2-b:1',2'-i]anthracene
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/6
_cell_angle_alpha                90
_cell_angle_beta                 93.3748(13)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   8.4074(2)
_cell_length_b                   22.0519(5)
_cell_length_c                   13.4051(3)
_cell_measurement_reflns_used    100
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      15
_cell_measurement_theta_min      15
_cell_volume                     2480.98(10)
_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    'BRUKER SHELXTL'
_computing_publication_material  'BRUKER SHELXTL'
_computing_structure_refinement  'SHELXL-2014/6 (Sheldrick, 2014)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'BRUKER KAPPA APEXII DUO DIFFRACTOMETER'
_diffrn_measurement_method       'PHI & OMEGA SCAN'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0544
_diffrn_reflns_av_unetI/netI     0.0340
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            27394
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.249
_diffrn_reflns_theta_min         1.780
_exptl_absorpt_coefficient_mu    0.109
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.6926
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.129
_exptl_crystal_description       block
_exptl_crystal_F_000             908
_exptl_crystal_size_max          0.500
_exptl_crystal_size_mid          0.400
_exptl_crystal_size_min          0.200
_refine_diff_density_max         0.423
_refine_diff_density_min         -0.346
_refine_diff_density_rms         0.047
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.036
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     280
_refine_ls_number_reflns         4493
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.036
_refine_ls_R_factor_all          0.0890
_refine_ls_R_factor_gt           0.0626
_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^)+(0.0851P)^2^+2.1778P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1711
_refine_ls_wR_factor_ref         0.1942
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3209
_reflns_number_total             4493
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja8b12671_si_002.cif
_cod_data_source_block           1b
_cod_database_code               4127812
_shelx_estimated_absorpt_t_min   0.948
_shelx_estimated_absorpt_t_max   0.979
_shelxl_version_number           2014/6
_shelx_res_checksum              48083
_shelx_hkl_checksum              54556