Bent N-Heteroarenes.
Hahn, Sebastian; Geyer, Florian L.; Koser, Silke; Tverskoy, Olena; Rominger, Frank; Bunz, Uwe H. F.; The Journal of organic chemistry 81 (2016) 8485–8494; doi:10.1021/acs.joc.6b01654

data_4037174
_publ_section_title
;
 Bent N-Heteroarenes.
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_journal_issue                   18
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              8485
_journal_page_last               8494
_journal_paper_doi               10.1021/acs.joc.6b01654
_journal_volume                  81
_journal_year                    2016
_chemical_formula_sum            'C50 H56 N2 Si2'
_chemical_formula_weight         741.14
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                104.207(19)
_cell_angle_beta                 90.814(17)
_cell_angle_gamma                97.893(19)
_cell_formula_units_Z            4
_cell_length_a                   13.744(12)
_cell_length_b                   17.701(15)
_cell_length_c                   19.206(16)
_cell_measurement_reflns_used    2088
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      15.96
_cell_measurement_theta_min      2.19
_cell_volume                     4481(7)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick 2008)'
_diffrn_ambient_temperature      200(2)
_diffrn_measured_fraction_theta_full 0.987
_diffrn_measured_fraction_theta_max 0.987
_diffrn_measurement_device_type  'Bruker APEX-II Quazar area detector'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1490
_diffrn_reflns_av_unetI/netI     0.1579
_diffrn_reflns_Laue_measured_fraction_full 0.987
_diffrn_reflns_Laue_measured_fraction_max 0.987
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            15536
_diffrn_reflns_point_group_measured_fraction_full 0.987
_diffrn_reflns_point_group_measured_fraction_max 0.987
_diffrn_reflns_theta_full        16.195
_diffrn_reflns_theta_max         16.195
_diffrn_reflns_theta_min         1.095
_diffrn_source                   'ImuS microsource'
_exptl_absorpt_coefficient_mu    0.113
_exptl_absorpt_correction_T_max  0.9546
_exptl_absorpt_correction_T_min  0.6977
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            dark_brown
_exptl_crystal_density_diffrn    1.099
_exptl_crystal_description       plate
_exptl_crystal_F_000             1592
_exptl_crystal_size_max          0.190
_exptl_crystal_size_mid          0.190
_exptl_crystal_size_min          0.030
_refine_diff_density_max         0.619
_refine_diff_density_min         -0.482
_refine_diff_density_rms         0.120
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.127
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     433
_refine_ls_number_reflns         4469
_refine_ls_number_restraints     1052
_refine_ls_restrained_S_all      1.059
_refine_ls_R_factor_all          0.2939
_refine_ls_R_factor_gt           0.2307
_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^)+(0.1656P)^2^+187.8098P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.5188
_refine_ls_wR_factor_ref         0.5534
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2617
_reflns_number_total             4469
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jo6b01654_si_003.cif
_cod_data_source_block           seh9
_cod_database_code               4037174
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.979
_shelx_estimated_absorpt_t_max   0.997
_shelx_res_checksum              75176
_shelx_hkl_checksum              28707