Single Crystal X-ray, AFM, NEXAFS, and OFET Studies on Angular Polycyclic Aromatic Silyl-Capped 7,14-Bis(ethynyl)dibenzo[b,def]chrysenes
Burke, Kerry B.; Shu, Ying; Kemppinen, Peter; Singh, Birendra; Bown, Mark; Liaw, Irving I.; Williamson, Rachel M.; Thomsen, Lars; Dastoor, Paul; Belcher, Warwick; Forsyth, Craig; Winzenberg, Kevin N.; Collis, Gavin E.; Crystal Growth & Design 12 (2012) 725–; doi:10.1021/cg201020w

data_4502874
_publ_section_title
;
 Single Crystal X-ray, AFM, NEXAFS, and OFET Studies on Angular Polycyclic
 Aromatic Silyl-Capped 7,14-Bis(ethynyl)dibenzo[b,def]chrysenes
;
_journal_issue                   2
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              725
_journal_paper_doi               10.1021/cg201020w
_journal_volume                  12
_journal_year                    2012
_chemical_formula_moiety         'C46 H54 Si2'
_chemical_formula_sum            'C46 H54 Si2'
_chemical_formula_weight         663.07
_chemical_name_systematic
; 
 ? 
;
_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                88.660(3)
_cell_angle_beta                 81.815(3)
_cell_angle_gamma                61.977(2)
_cell_formula_units_Z            1
_cell_length_a                   8.0322(4)
_cell_length_b                   8.4306(5)
_cell_length_c                   16.3624(10)
_cell_measurement_temperature    123(2)
_cell_volume                     966.93(10)
_computing_cell_refinement       'Bruker Apex2 v2.0'
_computing_data_collection       'Bruker Apex2 v2.0'
_computing_data_reduction        'Bruker Apex2 v2.0'
_computing_molecular_graphics    X-Seed
_computing_publication_material  CIFTAB
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker X8 Apex CCD'
_diffrn_measurement_method       'phi and omega scans'
_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  0.0473
_diffrn_reflns_av_sigmaI/netI    0.0467
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            20922
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         2.52
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.122
_exptl_absorpt_correction_T_max  0.99
_exptl_absorpt_correction_T_min  0.90
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.139
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             358
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.358
_refine_diff_density_min         -0.327
_refine_diff_density_rms         0.056
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.265
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     325
_refine_ls_number_reflns         4428
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.265
_refine_ls_R_factor_all          0.0817
_refine_ls_R_factor_gt           0.0749
_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^)+(0.0197P)^2^+1.0963P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1329
_refine_ls_wR_factor_ref         0.1355
_reflns_number_gt                4114
_reflns_number_total             4428
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg201020w_si_002.cif
_cod_data_source_block           a21_08a
_cod_database_code               4502874