Ruthenium-Catalyzed Alkyne trans-Hydrometalation: Mechanistic Insights and Preparative Implications.
Roşca, Dragoş-Adrian; Radkowski, Karin; Wolf, Larry M.; Wagh, Minal; Goddard, Richard; Thiel, Walter; Fürstner, Alois; Journal of the American Chemical Society 139 (2017) 2443–2455; doi:10.1021/jacs.6b12517

data_4125788
_publ_section_title
;
 Ruthenium-Catalyzed Alkyne trans-Hydrometalation: Mechanistic Insights
 and Preparative Implications.
;
_journal_issue                   6
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              2443
_journal_page_last               2455
_journal_paper_doi               10.1021/jacs.6b12517
_journal_volume                  139
_journal_year                    2017
_chemical_compound_source        pentane
_chemical_formula_moiety         'C40 H60 Cl4 Ru4, C7 H12'
_chemical_formula_sum            'C47 H72 Cl4 Ru4'
_chemical_formula_weight         1183.12
_chemical_name_systematic
;
 tetrakis(pentamethylcyclopentadienyl-ruthenium-chloride)
 4,4-dimethyl-2-pentyne
;
_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'
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_block_code                ROD-RA-420-01_100K_10113
_audit_creation_date             2016-06-14
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                90
_cell_angle_beta                 94.351(14)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   11.375(8)
_cell_length_b                   21.717(15)
_cell_length_c                   19.940(14)
_cell_measurement_reflns_used    8316
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      35.5984
_cell_measurement_theta_min      2.9769
_cell_volume                     4912(6)
_computing_cell_refinement       'SAINT software (Bruker AXS, 2004)'
_computing_data_collection       'APEX2 (Bruker AXS, 2005-2013)'
_computing_data_reduction        'SAINT software (Bruker AXS, 2004)'
_computing_molecular_graphics    'DIAMOND (Crystal Impact GbR, 1997-2014)'
_computing_structure_refinement  'SHELXL (G. M. Sheldrick, 2013)'
_computing_structure_solution    'SHELXT (G. M. Sheldrick, 2015)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 66.67
_diffrn_measured_fraction_theta_full 0.983
_diffrn_measured_fraction_theta_max 0.986
_diffrn_measurement_device_type  'Bruker-AXS Kappa Mach3 APEX-II'
_diffrn_measurement_method       'CCD \f- and \w-scans'
_diffrn_radiation_monochromator  'Incoatec Helios mirrors'
_diffrn_radiation_source         1\mS
_diffrn_radiation_type           Mo-K\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0452
_diffrn_reflns_av_unetI/netI     0.0302
_diffrn_reflns_Laue_measured_fraction_full 0.983
_diffrn_reflns_Laue_measured_fraction_max 0.986
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       33
_diffrn_reflns_limit_k_min       -33
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            132567
_diffrn_reflns_point_group_measured_fraction_full 0.983
_diffrn_reflns_point_group_measured_fraction_max 0.986
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         33.142
_diffrn_reflns_theta_min         3.392
_exptl_absorpt_coefficient_mu    1.454
_exptl_absorpt_correction_T_max  0.97816
_exptl_absorpt_correction_T_min  0.87041
_exptl_absorpt_correction_type   gaussian
_exptl_absorpt_process_details   'SADABS (Bruker AXS, 2012)'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.600
_exptl_crystal_description       prism
_exptl_crystal_F_000             2392
_exptl_crystal_size_max          0.146
_exptl_crystal_size_mid          0.122
_exptl_crystal_size_min          0.031
_refine_diff_density_max         1.119
_refine_diff_density_min         -1.052
_refine_diff_density_rms         0.118
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.912
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     520
_refine_ls_number_reflns         18486
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.912
_refine_ls_R_factor_all          0.0459
_refine_ls_R_factor_gt           0.0308
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0683P)^2^+4.5224P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0889
_refine_ls_wR_factor_ref         0.1006
_reflns_Friedel_coverage         0.000
_reflns_number_gt                14850
_reflns_number_total             18486
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja6b12517_si_003.cif
_cod_data_source_block           1_10
_cod_database_code               4125788
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.816
_shelx_estimated_absorpt_t_max   0.956
_shelx_res_checksum              142
_shelx_hkl_checksum              64660