Organocalcium Complex-Catalyzed Selective Redistribution of ArSiH3 or Ar(alkyl)SiH2 to Ar3SiH or Ar2(alkyl)SiH
Li, Tao; McCabe, Karl N.; Maron, Laurent; Leng, Xuebing; Chen, Yaofeng; ACS Catalysis  (2021) 6348–6356; doi:10.1021/acscatal.1c00463

data_4518767
_publ_section_title
;
 Organocalcium Complex-Catalyzed Selective Redistribution of ArSiH3 or
 Ar(alkyl)SiH2 to Ar3SiH or Ar2(alkyl)SiH
;
_journal_name_full               'ACS Catalysis'
_journal_page_first              6348
_journal_page_last               6356
_journal_paper_doi               10.1021/acscatal.1c00463
_journal_year                    2021
_chemical_formula_moiety         'C27 H48 Ca N4'
_chemical_formula_sum            'C27 H48 Ca N4'
_chemical_formula_weight         468.77
_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   mixed
_atom_sites_solution_primary     dual
_audit_creation_date             2019-07-23
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_cell_angle_alpha                115.2200(10)
_cell_angle_beta                 107.4360(10)
_cell_angle_gamma                94.0400(10)
_cell_formula_units_Z            2
_cell_length_a                   9.9232(2)
_cell_length_b                   13.1316(3)
_cell_length_c                   14.5808(3)
_cell_measurement_reflns_used    9942
_cell_measurement_temperature    170(2)
_cell_measurement_theta_max      54.88
_cell_measurement_theta_min      3.13
_cell_volume                     1596.11(6)
_computing_cell_refinement       'SAINT v8.37A (Bruker, 2015)'
_computing_data_reduction        'SAINT v8.37A (Bruker, 2015)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      169.97
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Bruker D8 Venture'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           GaK\a
_diffrn_radiation_wavelength     1.34139
_diffrn_reflns_av_R_equivalents  0.0378
_diffrn_reflns_av_unetI/netI     0.0352
_diffrn_reflns_Laue_measured_fraction_full 0.994
_diffrn_reflns_Laue_measured_fraction_max 0.993
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            19202
_diffrn_reflns_point_group_measured_fraction_full 0.994
_diffrn_reflns_point_group_measured_fraction_max 0.993
_diffrn_reflns_theta_full        53.594
_diffrn_reflns_theta_max         54.901
_diffrn_reflns_theta_min         3.131
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.193
_exptl_absorpt_correction_T_max  0.7508
_exptl_absorpt_correction_T_min  0.6116
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.0967 before and 0.0536 after correction.
The Ratio of minimum to maximum transmission is 0.8146.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    0.975
_exptl_crystal_description       block
_exptl_crystal_F_000             516
_exptl_crystal_size_max          0.12
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.676
_refine_diff_density_min         -0.334
_refine_diff_density_rms         0.055
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.039
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     304
_refine_ls_number_reflns         6017
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.039
_refine_ls_R_factor_all          0.0641
_refine_ls_R_factor_gt           0.0577
_refine_ls_shift/su_max          0.005
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0907P)^2^+1.0025P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1618
_refine_ls_wR_factor_ref         0.1676
_reflns_Friedel_coverage         0.000
_reflns_number_gt                5297
_reflns_number_total             6017
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            cs1c00463_si_005.cif
_cod_data_source_block           mj19494_0m
_cod_database_code               4518767
_shelx_shelxl_version_number     2016/6
_shelx_estimated_absorpt_t_max   0.943
_shelx_estimated_absorpt_t_min   0.870
_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), C25(H25)
2.b Secondary CH2 refined with riding coordinates:
 C6(H6A,H6B), C7(H7A,H7B), C8(H8A,H8B), C9(H9A,H9B)
2.c Aromatic/amide H refined with riding coordinates:
 C3(H3), C18(H18), C19(H19), C20(H20)
2.d Idealised Me refined as rotating group:
 C1(H1A,H1B,H1C), C10(H10A,H10B,H10C), C11(H11A,H11B,H11C), C12(H12A,H12B,
 H12C), C13(H13A,H13B,H13C), C14(H14A,H14B,H14C), C15(H15A,H15B,H15C), C23(H23A,
 H23B,H23C), C24(H24A,H24B,H24C), C26(H26A,H26B,H26C), C27(H27A,H27B,H27C)
;
_shelx_res_checksum              84898
_shelx_hkl_checksum              14992
_shelx_fab_checksum              31558
_olex2_submission_special_instructions 'No special instructions were received'