Multifunctional chiral silanol ligands for enantioselective catalysis.
Chang, Yun-Pu; Blanco-Herrero, Kevin; Alturaifi, Turki M.; Fettinger, James C.; Liu, Peng; Franz, Annaliese K.; Chemical science 16 (2025) 13678–13683; doi:10.1039/d5sc02528a

data_1574867
_publ_section_title
;
 Multifunctional chiral silanol ligands for enantioselective catalysis.
;
_journal_issue                   30
_journal_name_full               'Chemical science'
_journal_page_first              13678
_journal_page_last               13683
_journal_paper_doi               10.1039/d5sc02528a
_journal_volume                  16
_journal_year                    2025
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C25 H37 F N2 O2 Si'
_chemical_formula_sum            'C25 H37 F N2 O2 Si'
_chemical_formula_weight         444.65
_space_group_crystal_system      monoclinic
_space_group_IT_number           4
_space_group_name_Hall           'P 2yb'
_space_group_name_H-M_alt        'P 1 21 1'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     dual
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2023-08-21 deposited with the CCDC.	2025-06-10 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 109.2216(12)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   10.4984(6)
_cell_length_b                   23.5281(13)
_cell_length_c                   11.1188(6)
_cell_measurement_reflns_used    9928
_cell_measurement_temperature    90(2)
_cell_measurement_theta_max      27.35
_cell_measurement_theta_min      2.60
_cell_volume                     2593.3(2)
_computing_cell_refinement       'SAINT (8.38a) (Bruker, 2017)'
_computing_data_collection       'Apex3 (2019.11-0) (Bruker, 2019)'
_computing_data_reduction        'SAINT (8.38a) (Bruker, 2017)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXT (Sheldrick, 2014)'
_diffrn_ambient_temperature      90(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker Photon2 CMOS'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0155
_diffrn_reflns_av_unetI/netI     0.0244
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       30
_diffrn_reflns_limit_k_min       -30
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            23292
_diffrn_reflns_point_group_measured_fraction_full 0.997
_diffrn_reflns_point_group_measured_fraction_max 0.996
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.463
_diffrn_reflns_theta_min         2.229
_exptl_absorpt_coefficient_mu    0.120
_exptl_absorpt_correction_T_max  0.9745
_exptl_absorpt_correction_T_min  0.9363
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS 2016/2 (Sheldrick, 2016)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.139
_exptl_crystal_description       Block
_exptl_crystal_F_000             960
_exptl_crystal_size_max          0.269
_exptl_crystal_size_mid          0.249
_exptl_crystal_size_min          0.196
_refine_diff_density_max         0.149
_refine_diff_density_min         -0.209
_refine_diff_density_rms         0.035
_refine_ls_abs_structure_details
; 
 Flack x determined using 4855 quotients [(I+)-(I-)]/[(I+)+(I-)] 
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259). 
;
_refine_ls_abs_structure_Flack   0.009(16)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.038
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     679
_refine_ls_number_reflns         11858
_refine_ls_number_restraints     39
_refine_ls_restrained_S_all      1.047
_refine_ls_R_factor_all          0.0397
_refine_ls_R_factor_gt           0.0344
_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^)+(0.0420P)^2^+0.4751P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0829
_refine_ls_wR_factor_ref         0.0860
_reflns_Friedel_coverage         0.948
_reflns_Friedel_fraction_full    0.995
_reflns_Friedel_fraction_max     0.994
_reflns_number_gt                10811
_reflns_number_total             11858
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d5sc02528a2.cif
_cod_data_source_block           JF3154FMI
_cod_depositor_comments
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The following automatic conversions were performed:

data item '_exptl_absorpt_correction_type' value 'Multi-scan' was
changed to 'multi-scan' in accordance with the
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 8170 2020-07-09 18:12:32Z antanas 

 Adding full bibliography for 1574864--1574869.cif.
;
_cod_original_sg_symbol_H-M      'P 21'
_cod_database_code               1574867
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.969
_shelx_estimated_absorpt_t_max   0.977
_shelx_res_checksum              55780