Highly Selective Addition of Cyclosilanes to Alkynes Enabling New Conjugated Materials
Jiang, Qifeng; Gittens, Alexandra; Wong, Sydnee; Siegler, Maxime A.; Klausen, Rebekka S.; Chemical Science  (2022) –; doi:10.1039/D2SC01690G

data_1567068
_publ_section_title
;
 Highly Selective Addition of Cyclosilanes to Alkynes Enabling New
 Conjugated Materials
;
_journal_name_full               'Chemical Science'
_journal_paper_doi               10.1039/D2SC01690G
_journal_year                    2022
_chemical_formula_moiety         'C26 H44 O2 Si6'
_chemical_formula_sum            'C26 H44 O2 Si6'
_chemical_formula_weight         557.15
_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   mixed
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2022-03-15 deposited with the CCDC.	2022-06-06 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 91.466(4)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   10.3662(5)
_cell_length_b                   11.2796(6)
_cell_length_c                   14.0764(7)
_cell_measurement_reflns_used    2479
_cell_measurement_temperature    110(2)
_cell_measurement_theta_max      67.7400
_cell_measurement_theta_min      5.0120
_cell_volume                     1645.37(14)
_computing_cell_refinement       'CrysAlisPro 1.171.39.29c (Rigaku OD, 2017)'
_computing_data_collection       'CrysAlisPro 1.171.39.29c (Rigaku OD, 2017)'
_computing_data_reduction        'CrysAlisPro 1.171.39.29c (Rigaku OD, 2017)'
_computing_molecular_graphics    'SHELXTL v6.10 (Sheldrick, 2008)'
_computing_publication_material  'SHELXTL v6.10 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXS-2018/3 (Sheldrick, 2018)'
_diffrn_ambient_temperature      110(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, Atlas'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_source         'SuperNova (Cu) X-ray Source'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0539
_diffrn_reflns_av_unetI/netI     0.0520
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            9929
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        67.224
_diffrn_reflns_theta_max         67.224
_diffrn_reflns_theta_min         4.266
_exptl_absorpt_coefficient_mu    2.528
_exptl_absorpt_correction_T_max  0.917
_exptl_absorpt_correction_T_min  0.864
_exptl_absorpt_correction_type   analytical
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.39.46 (Rigaku Oxford Diffraction, 2018)
Analytical numeric absorption correction using a multifaceted crystal
			model based on expressions derived by R.C. Clark & J.S. Reid.
(Clark, R. C. & Reid, J. S. (1995). Acta Cryst. A51, 887-897)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.125
_exptl_crystal_description       block
_exptl_crystal_F_000             600
_exptl_crystal_size_max          0.085
_exptl_crystal_size_mid          0.065
_exptl_crystal_size_min          0.044
_refine_diff_density_max         0.918
_refine_diff_density_min         -0.321
_refine_diff_density_rms         0.078
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.042
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     163
_refine_ls_number_reflns         2958
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.042
_refine_ls_R_factor_all          0.0736
_refine_ls_R_factor_gt           0.0510
_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^)+(0.0695P)^2^+0.6746P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1223
_refine_ls_wR_factor_ref         0.1385
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2235
_reflns_number_total             2958
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d2sc01690g2.cif
_cod_data_source_block           1e
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               1567068
_shelx_shelxl_version_number     2018/3
_oxdiff_exptl_absorpt_empirical_full_min 0.822
_oxdiff_exptl_absorpt_empirical_full_max 1.312
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
;
_shelx_res_checksum              59243
_shelx_hkl_checksum              43251