Hydrogenolysis of Tantalum Hydrocarbyl Complexes: Intermediates on the Road to a Dinuclear Tantalum Tetrahydride Derivative
Parker, Kyle D. J.; Nied, Dominik; Fryzuk, Michael D.; Organometallics 34 (2015) 3546–; doi:10.1021/acs.organomet.5b00344

data_4087588
_publ_section_title
;
 Hydrogenolysis of Tantalum Hydrocarbyl Complexes: Intermediates on the
 Road to a Dinuclear Tantalum Tetrahydride Derivative
;
_journal_issue                   14
_journal_name_full               Organometallics
_journal_page_first              3546
_journal_paper_doi               10.1021/acs.organomet.5b00344
_journal_volume                  34
_journal_year                    2015
_chemical_formula_moiety         'C46 H59 N2 P Si2 Ta'
_chemical_formula_sum            'C46 H59 N2 P Si2 Ta'
_chemical_formula_weight         908.05
_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
_audit_creation_date             2015-04-24
_audit_creation_method
;
Olex2 1.2
(compiled 2015.01.26 svn.r3150 for OlexSys, GUI svn.r4998)
;
_cell_angle_alpha                83.5460(9)
_cell_angle_beta                 89.9168(9)
_cell_angle_gamma                78.3662(9)
_cell_formula_units_Z            2
_cell_length_a                   11.2627(5)
_cell_length_b                   12.3980(5)
_cell_length_c                   18.6084(8)
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      25.37
_cell_measurement_theta_min      1.85
_cell_volume                     2528.27(19)
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_diffrn_ambient_temperature      100.15
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.986
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_unetI/netI     0.0328
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.986
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            9148
_diffrn_reflns_point_group_measured_fraction_full 0.997
_diffrn_reflns_point_group_measured_fraction_max 0.986
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.368
_diffrn_reflns_theta_min         1.846
_exptl_absorpt_coefficient_mu    2.281
_exptl_absorpt_correction_T_max  0.7960
_exptl_absorpt_correction_T_min  0.6620
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_density_diffrn    1.193
_exptl_crystal_description       needles
_exptl_crystal_F_000             930
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.783
_refine_diff_density_min         -0.886
_refine_diff_density_rms         0.078
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.056
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     483
_refine_ls_number_reflns         9148
_refine_ls_number_restraints     468
_refine_ls_restrained_S_all      1.035
_refine_ls_R_factor_all          0.0278
_refine_ls_R_factor_gt           0.0228
_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^)+(0.0317P)^2^+0.5571P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0564
_refine_ls_wR_factor_ref         0.0579
_reflns_Friedel_coverage         0.000
_reflns_number_gt                8248
_reflns_number_total             9148
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            om5b00344_si_002.cif
_cod_data_source_block           mo_mf906_0m
_cod_original_cell_volume        2528.25(30)
_cod_database_code               4087588
_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
2. Rigid body (RIGU) restrains
 All non-hydrogen atoms
 with sigma for 1-2 distances of 0.004 and sigma for 1-3 distances of 0.004
3.a Ternary CH refined with riding coordinates:
 C39(H39), C43(H43)
3.b Aromatic/amide H refined with riding coordinates:
 C02(H02), C03(H03), C04(H04), C05(H05), C06(H06), C08(H08), C10(H10),
 C11(H11), C16(H16), C18(H18), C25(H25), C27(H27), C33(H33), C34(H34), C36(H36)
3.c Idealised Me refined as rotating group:
 C13(H13A,H13B,H13C), C20(H20A,H20B,H20C), C21(H21A,H21B,H21C), C22(H22A,H22B,
 H22C), C29(H29A,H29B,H29C), C30(H30A,H30B,H30C), C31(H31A,H31B,H31C), C38(H38A,
 H38B,H38C), C40(H40A,H40B,H40C), C41(H41A,H41B,H41C), C42(H42A,H42B,H42C),
 C44(H44A,H44B,H44C), C45(H45A,H45B,H45C), C46(H46A,H46B,H46C)
;
_shelx_res_checksum              59828
_shelx_hkl_checksum              48391
_shelx_shelxl_version_number     2014/7
_olex2_submission_special_instructions 'No special instructions were received'