Oligosilanyl-Bridged Biscarbazoles: Structure, Synthesis, and Spectroscopic Properties
Feng, Siyang; Zhou, Zhikuan; Xiang, Xiaoshuang; Feng, Hongjie; Qu, Zhirong; Lu, Hua; ACS Omega  (2020) –; doi:10.1021/acsomega.0c02559

data_4517863
_publ_section_title
;
 Oligosilanyl-Bridged Biscarbazoles: Structure, Synthesis, and
 Spectroscopic Properties
;
_journal_name_full               'ACS Omega'
_journal_paper_doi               10.1021/acsomega.0c02559
_journal_year                    2020
_chemical_formula_moiety         'C34 H44 N2 Si4'
_chemical_formula_sum            'C34 H44 N2 Si4'
_chemical_formula_weight         593.07
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2019-09-20
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_cell_angle_alpha                90
_cell_angle_beta                 102.525(4)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   19.127(5)
_cell_length_b                   8.086(2)
_cell_length_c                   11.449(3)
_cell_measurement_reflns_used    5929
_cell_measurement_temperature    296.15
_cell_measurement_theta_max      28.36
_cell_measurement_theta_min      2.18
_cell_volume                     1728.6(8)
_computing_cell_refinement       'SAINT V8.38A (?, 2016)'
_computing_data_reduction        'SAINT V8.38A (?, 2016)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_computing_structure_solution    'XT (Sheldrick, 2015)'
_diffrn_ambient_temperature      296.15
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0365
_diffrn_reflns_av_unetI/netI     0.0296
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.995
_diffrn_reflns_limit_h_max       25
_diffrn_reflns_limit_h_min       -25
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            18677
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.995
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.705
_diffrn_reflns_theta_min         2.182
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.196
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.9210
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2016/2 (Bruker,2016/2) was used for absorption correction. wR2(int) was 0.0579 before and 0.0474 after correction. The Ratio of minimum to maximum transmission is 0.9210. The \l/2 correction factor is 0.00150.'
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.139
_exptl_crystal_description       block
_exptl_crystal_F_000             636
_exptl_crystal_size_max          0.19
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.16
_refine_diff_density_max         0.229
_refine_diff_density_min         -0.222
_refine_diff_density_rms         0.041
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.023
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     186
_refine_ls_number_reflns         4441
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.023
_refine_ls_R_factor_all          0.0560
_refine_ls_R_factor_gt           0.0390
_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^)+(0.0596P)^2^+0.3344P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1058
_refine_ls_wR_factor_ref         0.1189
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3348
_reflns_number_total             4441
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ao0c02559_si_004.cif
_cod_data_source_block           mo190919a
_cod_original_cell_volume        1728.6(7)
_cod_database_code               4517863
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_max   0.969
_shelx_estimated_absorpt_t_min   0.964
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Aromatic/amide H refined with riding coordinates:
 C2(H2), C3(H3), C4(H4), C5(H5), C8(H8), C10(H10), C11(H11)
2.b Idealised Me refined as rotating group:
 C13(H13A,H13B,H13C), C14(H14A,H14B,H14C), C15(H15A,H15B,H15C), C16(H16A,H16B,
 H16C), C17(H17A,H17B,H17C)
;
_shelx_res_checksum              3227
_shelx_hkl_checksum              55571
_olex2_submission_special_instructions 'No special instructions were received'