Carbon supported hybrid catalysts for controlled product selectivity in the hydrosilylation of alkynes
Roemer, Max; Gonçales, Vinicius R.; Keaveney, Sinead T.; Pernik, Indrek; Lian, Jiaxin; Downes, James; Gooding, J. Justin; Messerle, Barbara A.; Catalysis Science & Technology 11 (2021) 1888–1898; doi:10.1039/D0CY02136A

data_1559893
_publ_section_title
;
 Carbon supported hybrid catalysts for controlled product selectivity in
 the hydrosilylation of alkynes
;
_journal_issue                   5
_journal_name_full               'Catalysis Science &amp; Technology'
_journal_page_first              1888
_journal_page_last               1898
_journal_paper_doi               10.1039/D0CY02136A
_journal_volume                  11
_journal_year                    2021
_chemical_formula_moiety         'C12 H14 Br2 O'
_chemical_formula_sum            'C12 H14 Br2 O'
_chemical_formula_weight         334.05
_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'
_atom_sites_solution_hydrogens   geom
_audit_creation_date             2019-07-10
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2019-10-29 deposited with the CCDC.	2020-12-30 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 91.679(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   15.7970(11)
_cell_length_b                   10.6695(7)
_cell_length_c                   7.5330(5)
_cell_measurement_reflns_used    9901
_cell_measurement_temperature    149.97
_cell_measurement_theta_max      27.645
_cell_measurement_theta_min      2.304
_cell_volume                     1269.11(15)
_computing_cell_refinement       'SAINT V8.38A (?, 2016)'
_computing_data_reduction        'SAINT V8.38A (?, 2016)'
_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 2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      149.97
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Bruker D8Quest'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0769
_diffrn_reflns_av_unetI/netI     0.0344
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.993
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            40852
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.993
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.724
_diffrn_reflns_theta_min         2.304
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    6.360
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.5707
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2016/2 (Bruker,2016/2) was used for absorption correction. wR2(int) was 0.1396 before and 0.0765 after correction. The Ratio of minimum to maximum transmission is 0.7654. The \l/2 correction factor is Not present.'
_exptl_crystal_colour            yellow
_exptl_crystal_colour_primary    yellow
_exptl_crystal_density_diffrn    1.748
_exptl_crystal_description       plate
_exptl_crystal_F_000             656
_exptl_crystal_size_max          0.334
_exptl_crystal_size_mid          0.218
_exptl_crystal_size_min          0.02
_refine_diff_density_max         1.027
_refine_diff_density_min         -1.185
_refine_diff_density_rms         0.091
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.021
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     136
_refine_ls_number_reflns         2947
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.021
_refine_ls_R_factor_all          0.0495
_refine_ls_R_factor_gt           0.0338
_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^)+(0.0341P)^2^+2.0491P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0772
_refine_ls_wR_factor_ref         0.0855
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2356
_reflns_number_total             2947
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d0cy02136a2.cif
_cod_data_source_block           max_mr93_10may19_0ma_a
_cod_depositor_comments
'Adding full bibliography for 1559893--1559895.cif.'
_cod_database_code               1559893
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.883
_shelx_estimated_absorpt_t_min   0.225
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
2.a Secondary CH2 refined with riding coordinates:
 C8(H8A,H8B), C9(H9A,H9B), C10(H10A,H10B), C11(H11A,H11B), C12(H12A,H12B)
2.b Aromatic/amide H refined with riding coordinates:
 C2(H2), C4(H4), C1(H1), C5(H5)
;
_shelx_res_checksum              8314
_olex2_submission_special_instructions 'No special instructions were received'