Stepwise alkyne insertion in Au(i) acetylides: influence of the nuclearity.
Cayuela-Castillo, Juan; Fernández-de-Córdova, Francisco J; See, Matthew S.; Fernández, Israel; Ríos, Pablo; Chemical science 16 (2025) 4684–4694; doi:10.1039/d4sc08227c

data_1573905
_publ_section_title
;
 Stepwise alkyne insertion in Au(i) acetylides: influence of the
 nuclearity.
;
_journal_issue                   11
_journal_name_full               'Chemical science'
_journal_page_first              4684
_journal_page_last               4694
_journal_paper_doi               10.1039/d4sc08227c
_journal_volume                  16
_journal_year                    2025
_chemical_formula_moiety         'C32 H45 Au N2 Si'
_chemical_formula_sum            'C32 H45 Au N2 Si'
_chemical_formula_weight         682.75
_chemical_properties_physical    Air-sensitive,Moisture-sensitive
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2024-07-08
_audit_creation_method
;
Olex2 1.5
(compiled 2024.02.16 svn.r378c4104 for OlexSys, GUI svn.r6928)
;
_audit_update_record
;
2024-07-22 deposited with the CCDC.	2025-02-10 downloaded from the CCDC.
;
_cell_angle_alpha                80.824(2)
_cell_angle_beta                 89.441(2)
_cell_angle_gamma                78.132(2)
_cell_formula_units_Z            2
_cell_length_a                   9.0241(5)
_cell_length_b                   12.0583(7)
_cell_length_c                   15.9337(8)
_cell_measurement_reflns_used    9655
_cell_measurement_temperature    193.00
_cell_measurement_theta_max      28.25
_cell_measurement_theta_min      2.34
_cell_volume                     1674.58(16)
_computing_cell_refinement       'SAINT V8.40B (?, 2016)'
_computing_data_reduction        'SAINT V8.40B (?, 2016)'
_computing_molecular_graphics    'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL  (Sheldrick, 2008)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      193.00
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.998
_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  0.0589
_diffrn_reflns_av_unetI/netI     0.0231
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            112194
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.297
_diffrn_reflns_theta_min         2.001
_diffrn_source_current           1.4
_diffrn_source_power             0.07
_diffrn_source_voltage           50.0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    4.448
_exptl_absorpt_correction_T_max  0.7457
_exptl_absorpt_correction_T_min  0.4975
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.1165 before and 0.0695 after correction.
The Ratio of minimum to maximum transmission is 0.6672.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.354
_exptl_crystal_description       prism
_exptl_crystal_F_000             688
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: Pentane'
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.07
_refine_diff_density_max         1.097
_refine_diff_density_min         -0.821
_refine_diff_density_rms         0.086
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.112
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     357
_refine_ls_number_reflns         8271
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.112
_refine_ls_R_factor_all          0.0274
_refine_ls_R_factor_gt           0.0208
_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^)+(0.0143P)^2^+1.7982P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0457
_refine_ls_wR_factor_ref         0.0500
_reflns_Friedel_coverage         0.000
_reflns_number_gt                7483
_reflns_number_total             8271
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d4sc08227c6.cif
_cod_data_source_block           pr0623a_0m
_cod_depositor_comments
'Adding full bibliography for 1573902--1573910.cif.'
_cod_database_code               1573905
_shelx_shelxl_version_number     2019/1
_shelx_estimated_absorpt_t_max   0.746
_shelx_estimated_absorpt_t_min   0.403
_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. Restrained distances
 C17-C18 \\sim C17-C18A
 with sigma of 0.02
 C17-C19 \\sim C17-C19A
 with sigma of 0.02
3. Others
 Sof(H17A)=Sof(C19A)=Sof(H19D)=Sof(H19E)=Sof(H19F)=Sof(C18A)=Sof(H18D)=
 Sof(H18E)=Sof(H18F)=1-FVAR(1)
 Sof(H17)=Sof(C18)=Sof(H18A)=Sof(H18B)=Sof(H18C)=Sof(C19)=Sof(H19A)=Sof(H19B)=
 Sof(H19C)=FVAR(1)
4.a Ternary CH refined with riding coordinates:
 C5(H5), C12(H12), C17(H17), C17(H17A), C24(H24)
4.b Aromatic/amide H refined with riding coordinates:
 C31(H31), C2(H2), C8(H8), C9(H9), C10(H10), C20(H20), C21(H21), C22(H22)
4.c Idealised Me refined as rotating group:
 C6(H6A,H6B,H6C), C7(H7A,H7B,H7C), C13(H13A,H13B,H13C), C14(H14A,H14B,H14C),
 C18(H18A,H18B,H18C), C19(H19A,H19B,H19C), C25(H25A,H25B,H25C), C26(H26A,H26B,
 H26C), C28(H28A,H28B,H28C), C29(H29A,H29B,H29C), C30(H30A,H30B,H30C),
 C19A(H19D,H19E,H19F), C18A(H18D,H18E,H18F)
;
_shelx_res_checksum              53477
_olex2_submission_special_instructions 'No special instructions were received'