Iron-Catalyzed H/D Exchange of Primary Silanes, Secondary Silanes, and Tertiary Siloxanes
Linford-Wood, Thomas G.; Mahon, Mary F.; Grayson, Matthew N.; Webster, Ruth L.; ACS Catalysis  (2022) 2979–2985; doi:10.1021/acscatal.2c00224

data_4519338
_publ_section_title
;
 Iron-Catalyzed H/D Exchange of Primary Silanes, Secondary Silanes, and
 Tertiary Siloxanes
;
_journal_name_full               'ACS Catalysis'
_journal_page_first              2979
_journal_page_last               2985
_journal_paper_doi               10.1021/acscatal.2c00224
_journal_year                    2022
_chemical_formula_moiety         'C29 H41 B Fe N2'
_chemical_formula_sum            'C29 H41 B Fe N2'
_chemical_formula_weight         484.30
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     dual
_audit_creation_date             2021-11-30
_audit_creation_method
;
Olex2 1.5
(compiled 2021.11.18 svn.ra9532c28 for OlexSys, GUI svn.r6429)
;
_cell_angle_alpha                90
_cell_angle_beta                 94.8230(10)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   18.1664(2)
_cell_length_b                   12.4604(2)
_cell_length_c                   23.9387(3)
_cell_measurement_reflns_used    10735
_cell_measurement_temperature    150.00(10)
_cell_measurement_theta_max      72.7180
_cell_measurement_theta_min      4.3010
_cell_volume                     5399.59(13)
_computing_cell_refinement       'CrysAlisPro 1.171.41.93a (Rigaku OD, 2020)'
_computing_data_collection       'CrysAlisPro 1.171.41.93a (Rigaku OD, 2020)'
_computing_data_reduction        'CrysAlisPro 1.171.41.93a (Rigaku OD, 2020)'
_computing_molecular_graphics    'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2014/3 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_environment      N~2~
_diffrn_ambient_temperature      150.00(10)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 8.1150
_diffrn_detector_type            EosS2
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at home/near, EosS2'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0360
_diffrn_reflns_av_unetI/netI     0.0237
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.994
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            26805
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.994
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         73.039
_diffrn_reflns_theta_min         3.706
_diffrn_source                   'micro-focus sealed X-ray tube'
_diffrn_source_type              'SuperNova (Cu) X-ray Source'
_exptl_absorpt_coefficient_mu    4.596
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.87888
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.41.93a (Rigaku Oxford Diffraction, 2020)
Empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            pink
_exptl_crystal_colour_primary    pink
_exptl_crystal_density_diffrn    1.191
_exptl_crystal_description       block
_exptl_crystal_F_000             2080
_exptl_crystal_size_max          0.289
_exptl_crystal_size_mid          0.214
_exptl_crystal_size_min          0.166
_refine_diff_density_max         0.236
_refine_diff_density_min         -0.325
_refine_diff_density_rms         0.043
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.035
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     312
_refine_ls_number_reflns         5384
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.035
_refine_ls_R_factor_all          0.0363
_refine_ls_R_factor_gt           0.0329
_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^)+(0.0476P)^2^+3.1559P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0842
_refine_ls_wR_factor_ref         0.0865
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4966
_reflns_number_total             5384
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            cs2c00224_si_002.cif
_cod_data_source_block           s21rlw31
_cod_database_code               4519338
_shelxl_version_number           2014-3
_shelx_estimated_absorpt_t_max   0.516
_shelx_estimated_absorpt_t_min   0.350
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Ternary CH refined with riding coordinates:
 C22(H22), C26(H26)
2.b Secondary CH2 refined with riding coordinates:
 C23(H23A,H23B), C24(H24A,H24B), C25(H25A,H25B), C27(H27A,H27B), C28(H28A,
 H28B), C29(H29A,H29B)
2.c Aromatic/amide H refined with riding coordinates:
 C3(H3), C4(H4), C5(H5), C11(H11), C16(H16), C17(H17), C18(H18)
2.d Idealised Me refined as rotating group:
 C7(H7A,H7B,H7C), C8(H8A,H8B,H8C), C9(H9A,H9B,H9C), C13(H13A,H13B,H13C),
 C20(H20A,H20B,H20C), C21(H21A,H21B,H21C)
;
_shelx_res_checksum              27146
_shelx_hkl_checksum              18178