Catalytic activity of cyclobutadiene rhodium complexes in hydrosilylation and other transformations of alkynes
Petrushina, Tatiana N.; Nelyubina, Yulia V.; Perekalin, Dmitry S.; Shvydkiy, Nikita V.; New Journal of Chemistry 48 (2024) 3952–3956; doi:10.1039/D3NJ05426H

data_7063012
_publ_section_title
;
 Catalytic activity of cyclobutadiene rhodium complexes in hydrosilylation
 and other transformations of alkynes
;
_journal_issue                   9
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              3952
_journal_page_last               3956
_journal_paper_doi               10.1039/D3NJ05426H
_journal_volume                  48
_journal_year                    2024
_chemical_formula_moiety         'C48 H50 P2 Rh, B F4'
_chemical_formula_sum            'C48 H50 B F4 P2 Rh'
_chemical_formula_weight         878.54
_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     dual
_audit_creation_date             2023-10-19
_audit_creation_method
;
Olex2 1.3
(compiled 2020.11.12 svn.r5f609507 for OlexSys, GUI svn.r6408)
;
_audit_update_record
;
2023-10-19 deposited with the CCDC.	2024-02-05 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 96.0350(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   10.7322(2)
_cell_length_b                   26.2556(5)
_cell_length_c                   14.7421(3)
_cell_measurement_reflns_used    6511
_cell_measurement_temperature    100
_cell_measurement_theta_max      30.31
_cell_measurement_theta_min      2.37
_cell_volume                     4131.01(14)
_computing_molecular_graphics    'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL  (Sheldrick, 2008)'
_computing_structure_solution    'SHELXT 2014/4 (Sheldrick, 2014)'
_diffrn_ambient_temperature      100
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker Quest D8'
_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  0.0999
_diffrn_reflns_av_unetI/netI     0.0775
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       34
_diffrn_reflns_limit_k_min       -34
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            51256
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.998
_diffrn_reflns_theta_min         2.060
_diffrn_source_current           1.4
_diffrn_source_power             0.07
_diffrn_source_voltage           50.0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.543
_exptl_absorpt_correction_T_max  0.7460
_exptl_absorpt_correction_T_min  0.6085
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2008/1 (Bruker,2008) was used for absorption correction.
wR2(int) was 0.0776 before and 0.0383 after correction.
The Ratio of minimum to maximum transmission is 0.8157.
The \l/2 correction factor is 0.0015.
;
_exptl_crystal_colour            red
_exptl_crystal_colour_primary    red
_exptl_crystal_density_diffrn    1.413
_exptl_crystal_description       prism
_exptl_crystal_F_000             1816
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.534
_refine_diff_density_min         -0.663
_refine_diff_density_rms         0.097
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.047
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     509
_refine_ls_number_reflns         9965
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.047
_refine_ls_R_factor_all          0.0742
_refine_ls_R_factor_gt           0.0428
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0162P)^2^+2.7780P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0762
_refine_ls_wR_factor_ref         0.0884
_reflns_Friedel_coverage         0.000
_reflns_number_gt                7183
_reflns_number_total             9965
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d3nj05426h2.cif
_cod_data_source_block           CbRh(PPh3)2+
_cod_depositor_comments
'Adding full bibliography for 7063011--7063012.cif.'
_cod_database_code               7063012
_shelxl_version_number           2014/6
_shelx_estimated_absorpt_t_max   0.948
_shelx_estimated_absorpt_t_min   0.923
_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 Secondary CH2 refined with riding coordinates:
 C5(H5A,H5B), C7(H7A,H7B), C9(H9A,H9B), C11(H11A,H11B)
2.b Aromatic/amide H refined with riding coordinates:
 C14(H14), C15(H15), C16(H16), C17(H17), C18(H18), C20(H20), C21(H21),
 C22(H22), C23(H23), C24(H24), C26(H26), C27(H27), C28(H28), C29(H29), C30(H30),
  C32(H32), C33(H33), C34(H34), C35(H35), C36(H36), C38(H38), C39(H39),
 C40(H40), C41(H41), C42(H42), C44(H44), C45(H45), C46(H46), C47(H47), C48(H48)
2.c Idealised Me refined as rotating group:
 C6(H6A,H6B,H6C), C8(H8A,H8B,H8C), C10(H10A,H10B,H10C), C12(H12A,H12B,H12C)
;
_shelx_res_checksum              98520
_olex2_submission_special_instructions 'No special instructions were received'