Site-Selective Functionalization of Si6R6 Siliconoids
Heider, Yannic; Poitiers, Nadine Elisabeth; Willmes, Philipp; Leszczynska, Kinga; Huch, Volker; Scheschkewitz, David; Chemical Science  (2019) –; doi:10.1039/C8SC05591B

data_1550743
_publ_section_title
;
 Site-Selective Functionalization of Si6R6 Siliconoids
;
_journal_name_full               'Chemical Science'
_journal_paper_doi               10.1039/C8SC05591B
_journal_year                    2019
_chemical_formula_moiety         'C78 H124 Si7, C6 H14'
_chemical_formula_sum            'C84 H138 Si7'
_chemical_formula_weight         1344.57
_chemical_properties_physical    Air-sensitive,Moisture-sensitive
_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'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2014/6
_audit_update_record
;
2018-11-06 deposited with the CCDC.    2019-03-07 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 95.4324(13)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   21.0070(7)
_cell_length_b                   20.4182(7)
_cell_length_c                   19.9183(7)
_cell_measurement_reflns_used    9960
_cell_measurement_temperature    152(2)
_cell_measurement_theta_max      28.74
_cell_measurement_theta_min      2.34
_cell_volume                     8505.1(5)
_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-2014/6 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick 2008)'
_diffrn_ambient_temperature      152(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_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  0.0376
_diffrn_reflns_av_unetI/netI     0.0446
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       28
_diffrn_reflns_limit_h_min       -27
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -27
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            68739
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.755
_diffrn_reflns_theta_min         0.974
_exptl_absorpt_coefficient_mu    0.152
_exptl_absorpt_correction_T_max  0.7458
_exptl_absorpt_correction_T_min  0.6844
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS 2014/5'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.050
_exptl_crystal_description       block
_exptl_crystal_F_000             2960
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: hexane'
_exptl_crystal_size_max          0.480
_exptl_crystal_size_mid          0.380
_exptl_crystal_size_min          0.166
_refine_diff_density_max         0.783
_refine_diff_density_min         -0.504
_refine_diff_density_rms         0.058
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.032
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1278
_refine_ls_number_reflns         22100
_refine_ls_number_restraints     26
_refine_ls_restrained_S_all      1.041
_refine_ls_R_factor_all          0.0737
_refine_ls_R_factor_gt           0.0473
_refine_ls_shift/su_max          0.053
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0584P)^2^+5.1392P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1158
_refine_ls_wR_factor_ref         0.1319
_reflns_Friedel_coverage         0.000
_reflns_number_gt                16441
_reflns_number_total             22100
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8sc05591b2.cif
_cod_data_source_block           sh3668
_cod_database_code               1550743
_shelx_estimated_absorpt_t_min   0.931
_shelx_estimated_absorpt_t_max   0.975
_shelxl_version_number           2014/6
_shelx_res_checksum              79068