Side Arm Twist on Zn-Catalyzed Hydrosilylative Reduction of CO2 to Formate and Methanol Equivalents with High Selectivity and Activity
Feng, Guoqin; Du, Chongyang; Xiang, Li; del Rosal, Iker; Li, Guangyu; Leng, Xuebing; Chen, Eugene Y.-X.; Maron, Laurent; Chen, Yaofeng; ACS Catalysis 8 (2018) 4710–; doi:10.1021/acscatal.8b01033

data_4515594
_publ_section_title
;
 Side Arm Twist on Zn-Catalyzed Hydrosilylative Reduction of CO2 to
 Formate and Methanol Equivalents with High Selectivity and Activity
;
_journal_issue                   5
_journal_name_full               'ACS Catalysis'
_journal_page_first              4710
_journal_paper_doi               10.1021/acscatal.8b01033
_journal_volume                  8
_journal_year                    2018
_chemical_formula_moiety         'C39 H49 N3 O Si Zn'
_chemical_formula_sum            'C39 H49 N3 O Si Zn'
_chemical_formula_weight         669.27
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_audit_creation_date             2016-03-25
_audit_creation_method
;
Olex2 1.2
(compiled 2016.02.19 svn.r3266 for OlexSys, GUI svn.r5155)
;
_cell_angle_alpha                90
_cell_angle_beta                 100.646(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.8505(9)
_cell_length_b                   21.914(2)
_cell_length_c                   19.0059(18)
_cell_measurement_reflns_used    8866
_cell_measurement_temperature    130
_cell_measurement_theta_max      30.357
_cell_measurement_theta_min      2.15
_cell_volume                     3622.7(6)
_computing_cell_refinement       'SAINT v7.68A (Bruker, 2009)'
_computing_data_reduction        'SAINT v7.68A (Bruker, 2009)'
_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    'ShelXS (Sheldrick, 2008)'
_diffrn_ambient_temperature      130
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0415
_diffrn_reflns_av_unetI/netI     0.0479
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.995
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       31
_diffrn_reflns_limit_k_min       -30
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            36102
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.995
_diffrn_reflns_theta_full        26.000
_diffrn_reflns_theta_max         30.569
_diffrn_reflns_theta_min         1.432
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.744
_exptl_absorpt_correction_T_max  0.7461
_exptl_absorpt_correction_T_min  0.6539
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2008/1 (Bruker,2008) was used for absorption correction.
wR2(int) was 0.0739 before and 0.0460 after correction.
The Ratio of minimum to maximum transmission is 0.8764.
The \l/2 correction factor is 0.0015.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.227
_exptl_crystal_description       block
_exptl_crystal_F_000             1424
_exptl_crystal_size_max          0.4
_exptl_crystal_size_mid          0.35
_exptl_crystal_size_min          0.3
_refine_diff_density_max         1.137
_refine_diff_density_min         -0.502
_refine_diff_density_rms         0.067
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.012
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     414
_refine_ls_number_reflns         11073
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.012
_refine_ls_R_factor_all          0.0636
_refine_ls_R_factor_gt           0.0424
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0478P)^2^+1.6154P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0969
_refine_ls_wR_factor_ref         0.1048
_reflns_Friedel_coverage         0.000
_reflns_number_gt                8415
_reflns_number_total             11073
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            cs8b01033_si_002.cif
_cod_data_source_block           1
_cod_original_cell_volume        3622.8(6)
_cod_database_code               4515594
_shelx_estimated_absorpt_t_max   0.808
_shelx_estimated_absorpt_t_min   0.755
_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:
 C16(H16), C19(H19)
2.b Secondary CH2 refined with riding coordinates:
 C6(H6A,H6B), C7(H7A,H7B)
2.c Aromatic/amide H refined with riding coordinates:
 C3(H3), C12(H12), C13(H13), C14(H14), C23(H23), C24(H24), C25(H25), C26(H26),
 C27(H27), C29(H29), C30(H30), C31(H31), C32(H32), C33(H33), C35(H35), C36(H36),
  C37(H37), C38(H38), C39(H39)
2.d Idealised Me refined as rotating group:
 C1(H1A,H1B,H1C), C5(H5A,H5B,H5C), C8(H8A,H8B,H8C), C9(H9A,H9B,H9C), C17(H17A,
 H17B,H17C), C18(H18A,H18B,H18C), C20(H20A,H20B,H20C), C21(H21A,H21B,H21C)
;
_shelx_res_checksum              95883
_shelx_hkl_checksum              75746
_shelx_shelxl_version_number     2014/7
_olex2_submission_special_instructions 'No special instructions were received'