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_4037171
_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            'C44 H52 N4 Si2'
_chemical_formula_weight         693.07
_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                74.000(3)
_cell_angle_beta                 68.894(3)
_cell_angle_gamma                76.175(3)
_cell_formula_units_Z            4
_cell_length_a                   14.2395(14)
_cell_length_b                   17.3295(17)
_cell_length_c                   18.5476(18)
_cell_measurement_reflns_used    2870
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      19.40
_cell_measurement_theta_min      2.35
_cell_volume                     4054.3(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 0.989
_diffrn_measured_fraction_theta_max 0.989
_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  0.0639
_diffrn_reflns_av_unetI/netI     0.0851
_diffrn_reflns_Laue_measured_fraction_full 0.989
_diffrn_reflns_Laue_measured_fraction_max 0.989
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -17
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_diffrn_reflns_limit_l_min       -18
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_diffrn_reflns_point_group_measured_fraction_full 0.989
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_diffrn_reflns_theta_full        20.492
_diffrn_reflns_theta_max         20.492
_diffrn_reflns_theta_min         1.203
_diffrn_source                   'ImuS microsource'
_exptl_absorpt_coefficient_mu    0.122
_exptl_absorpt_correction_T_max  0.9292
_exptl_absorpt_correction_T_min  0.8463
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            blue
_exptl_crystal_density_diffrn    1.135
_exptl_crystal_description       plate
_exptl_crystal_F_000             1488
_exptl_crystal_size_max          0.210
_exptl_crystal_size_mid          0.110
_exptl_crystal_size_min          0.040
_refine_diff_density_max         0.759
_refine_diff_density_min         -0.324
_refine_diff_density_rms         0.095
_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     901
_refine_ls_number_reflns         8021
_refine_ls_number_restraints     1743
_refine_ls_restrained_S_all      1.722
_refine_ls_R_factor_all          0.1926
_refine_ls_R_factor_gt           0.1186
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.1000P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2852
_refine_ls_wR_factor_ref         0.3145
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4297
_reflns_number_total             8021
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jo6b01654_si_003.cif
_cod_data_source_block           seh14
_cod_database_code               4037171
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.975
_shelx_estimated_absorpt_t_max   0.995
_shelx_res_checksum              58077
_shelx_hkl_checksum              14635