Efficient synthesis of pi-extended phenazasilines for optical and electronic applications
Huanhuan Li; Yang Wang; Kai Yuan; Ye Tao; Runfeng Chen; Chao Zheng; Xinhui Zhou; Junfeng Li; Wei Huang; Chem.Commun. 50 (2014) 15760–; doi:10.1039/C4cc06636G

data_7116090
_publ_section_title
;
 Efficient synthesis of pi-extended phenazasilines for optical and
 electronic applications
;
_journal_name_full               Chem.Commun.
_journal_page_first              15760
_journal_paper_doi               10.1039/C4cc06636G
_journal_volume                  50
_journal_year                    2014
_chemical_formula_sum            'C20 H19 N Si'
_chemical_formula_weight         301.45
_chemical_name_systematic        TPASi
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 93.953(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.649(4)
_cell_length_b                   8.213(3)
_cell_length_c                   17.429(6)
_cell_measurement_temperature    296(2)
_cell_volume                     1663.5(10)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_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  0.0253
_diffrn_reflns_av_sigmaI/netI    0.0285
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            5602
_diffrn_reflns_theta_full        21.57
_diffrn_reflns_theta_max         21.57
_diffrn_reflns_theta_min         1.75
_exptl_absorpt_coefficient_mu    0.137
_exptl_absorpt_correction_T_max  0.9837
_exptl_absorpt_correction_T_min  0.9810
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.204
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             640
_exptl_crystal_preparation       Luminescent
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: dichloromethane and ethanol solution'
_exptl_crystal_size_max          0.14
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.120
_refine_diff_density_min         -0.184
_refine_diff_density_rms         0.032
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.048
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     201
_refine_ls_number_reflns         1917
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.048
_refine_ls_R_factor_all          0.0434
_refine_ls_R_factor_gt           0.0344
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0501P)^2^+0.4542P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0892
_refine_ls_wR_factor_ref         0.0968
_reflns_number_gt                1613
_reflns_number_total             1917
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4cc06636g2.cif
_cod_data_source_block           TPASi
_cod_original_cell_volume        1663.6(9)
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7116090