Insights into the mechanism of active catalyst generation for the Pd<sup>II</sup>(acac)<sub>2</sub>/PPh<sub>3</sub> system in the context of telomerization of 1,3-butadiene.
Bouley, Bailey S.; Bae, Dae Young; Chakrabarti, Sagnik; Rosen, Mari; Kennedy, Robert D.; Mirica, Liviu M.; Chemical science 16 (2025) 15486–15498; doi:10.1039/d5sc02171e

data_1575141
_publ_section_title
;
 Insights into the mechanism of active catalyst generation for the
 Pd<sup>II</sup>(acac)<sub>2</sub>/PPh<sub>3</sub> system in the context
 of telomerization of 1,3-butadiene.
;
_journal_issue                   34
_journal_name_full               'Chemical science'
_journal_page_first              15486
_journal_page_last               15498
_journal_paper_doi               10.1039/d5sc02171e
_journal_volume                  16
_journal_year                    2025
_chemical_formula_moiety         'C40 H36 O4 P2 Pd, H2 O'
_chemical_formula_sum            'C40 H38 O5 P2 Pd'
_chemical_formula_weight         767.04
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     dual
_audit_creation_date             2024-01-15
_audit_creation_method
;
Olex2 1.5
(compiled 2023.08.24 svn.re1ec1418 for OlexSys, GUI svn.r6817)
;
_audit_update_record
;
2024-08-09 deposited with the CCDC.	2025-07-21 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   18.7562(10)
_cell_length_b                   10.3796(6)
_cell_length_c                   34.981(2)
_cell_measurement_reflns_used    8205
_cell_measurement_temperature    100.0
_cell_measurement_theta_max      25.31
_cell_measurement_theta_min      2.28
_cell_volume                     6810.2(7)
_computing_cell_refinement       'SAINT V8.38A (Bruker, 2018)'
_computing_data_reduction        'SAINT V8.38A (Bruker, 2018)'
_computing_molecular_graphics    'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2018/3 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      100.0
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1745
_diffrn_reflns_av_unetI/netI     0.1297
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.992
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       42
_diffrn_reflns_limit_l_min       -41
_diffrn_reflns_number            64543
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.991
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.481
_diffrn_reflns_theta_min         2.047
_diffrn_source_current           1.0
_diffrn_source_power             0.05
_diffrn_source_voltage           50.0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.684
_exptl_absorpt_correction_T_max  0.7452
_exptl_absorpt_correction_T_min  0.4926
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.1450 before and 0.0875 after correction.
The Ratio of minimum to maximum transmission is 0.6610.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.496
_exptl_crystal_description       prism
_exptl_crystal_F_000             3152
_refine_diff_density_max         1.027
_refine_diff_density_min         -1.101
_refine_diff_density_rms         0.176
_refine_ls_abs_structure_details
;
 Flack x determined using 2876 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.02(3)
_refine_ls_extinction_coef       0.0100(7)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2018/3 (Sheldrick 2018)'
_refine_ls_goodness_of_fit_ref   1.042
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     876
_refine_ls_number_reflns         12537
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.042
_refine_ls_R_factor_all          0.1138
_refine_ls_R_factor_gt           0.0730
_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^)+(0.0885P)^2^+5.4057P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1588
_refine_ls_wR_factor_ref         0.1866
_reflns_Friedel_coverage         0.804
_reflns_Friedel_fraction_full    0.999
_reflns_Friedel_fraction_max     0.990
_reflns_number_gt                8949
_reflns_number_total             12537
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d5sc02171e2.cif
_cod_data_source_block           4
_cod_depositor_comments
'Adding full bibliography for 1575141--1575143.cif.'
_cod_database_code               1575141
_shelx_shelxl_version_number     2018/3
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups, All O(H,H) groups
2.a Free rotating group:
 O9(H9A,H9B), O10(H10A,H10B)
2.b Aromatic/amide H refined with riding coordinates:
 C2(H2), C3(H3), C4(H4), C5(H5), C6(H6), C8(H8), C9(H9), C10(H10), C11(H11),
 C12(H12), 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), C42(H42), C43(H43),
  C44(H44), C45(H45), C46(H46), C48(H48), C49(H49), C50(H50), C51(H51),
 C52(H52), C54(H54), C55(H55), C56(H56), C57(H57), C58(H58), C60(H60), C61(H61),
  C62(H62), C63(H63), C64(H64), C66(H66), C67(H67), C68(H68), C69(H69),
 C70(H70), C72(H72), C73(H73), C74(H74), C75(H75), C76(H76)
2.c Idealised Me refined as rotating group:
 C38(H38A,H38B,H38C), C40(H40A,H40B,H40C), C78(H78A,H78B,H78C), C80(H80A,H80B,
 H80C)
;
_shelx_res_checksum              73829
_olex2_submission_special_instructions 'No special instructions were received'