Size-Dependent Rate Acceleration in the Silylation of Secondary Alcohols: the Bigger the Faster
Zipse, Hendrik; Marin-Luna, Marta; Poelloth, Benjamin; Zott, Fabian L.; Chemical Science  (2018) –; doi:10.1039/C8SC01889H

data_1549638
_publ_section_title
;
 Size-Dependent Rate Acceleration in the Silylation of Secondary Alcohols:
 the Bigger the Faster
;
_journal_name_full               'Chemical Science'
_journal_paper_doi               10.1039/C8SC01889H
_journal_year                    2018
_chemical_formula_moiety         'C34 H34 O Si'
_chemical_formula_sum            'C34 H34 O Si'
_chemical_formula_weight         486.70
_chemical_name_common            BP210
_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   geom
_audit_block_code                C34H34OSi_wv021_zipse
_audit_creation_method           'APEX3 v2017.3-0'
_audit_update_record
;
2018-04-25 deposited with the CCDC.
2018-06-27 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 104.291(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   10.8826(4)
_cell_length_b                   34.7232(14)
_cell_length_c                   7.2800(3)
_cell_measurement_reflns_used    9988
_cell_measurement_temperature    103.(2)
_cell_measurement_theta_max      26.5061
_cell_measurement_theta_min      2.9464
_cell_volume                     2665.83(18)
_computing_cell_refinement       'SAINT V8.38A (Bruker AXS Inc., 2017)'
_computing_data_collection       'APEX3 v2016.5-0, Bruker AXS (2016)'
_computing_data_reduction        'SAINT V8.38A (Bruker AXS Inc., 2017)'
_computing_molecular_graphics    'shelXle (C.B. Huebschle, rev 833)'
_computing_structure_refinement  'SHELXL-2016/6 (Sheldrick, 2016)'
_computing_structure_solution    'SHELXT 2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      103.(2)
_diffrn_detector_area_resol_mean 7.3910
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device       'fixed-chi three-circle diffractometer'
_diffrn_measurement_device_type  'Bruker D8 Venture TXS'
_diffrn_measurement_method       'mix of phi and omega scans'
_diffrn_radiation_monochromator  'focusing mirrors'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0447
_diffrn_reflns_av_unetI/netI     0.0332
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       43
_diffrn_reflns_limit_k_min       -43
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            27642
_diffrn_reflns_point_group_measured_fraction_full 0.997
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.372
_diffrn_reflns_theta_min         3.270
_diffrn_source                   'rotating anode (TXS)'
_diffrn_source_current           50
_diffrn_source_power             2.5
_diffrn_source_type              'Bruker TXS'
_diffrn_source_voltage           50
_exptl_absorpt_coefficient_mu    0.113
_exptl_absorpt_correction_T_max  0.99
_exptl_absorpt_correction_T_min  0.96
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 - Bruker AXS area detector scaling and absorption correction
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.213
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1040
_exptl_crystal_size_max          0.090
_exptl_crystal_size_mid          0.060
_exptl_crystal_size_min          0.040
_refine_diff_density_max         0.772
_refine_diff_density_min         -0.277
_refine_diff_density_rms         0.054
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.078
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     330
_refine_ls_number_reflns         5445
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.078
_refine_ls_R_factor_all          0.0643
_refine_ls_R_factor_gt           0.0551
_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^)+(0.0488P)^2^+2.9375P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1315
_refine_ls_wR_factor_ref         0.1373
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4681
_reflns_number_total             5445
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8sc01889h3.cif
_cod_data_source_block           wv021
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Multi-Scan' changed to
'multi-scan' according to
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 4973 2017-02-22 13:04:09Z antanas 
;
_cod_database_code               1549638
_shelx_estimated_absorpt_t_min   0.990
_shelx_estimated_absorpt_t_max   0.995
_shelx_res_checksum              24962