Experimental and Computational Studies of a Uranium Metallacyclocumulene
Zhang, Lei; Fang, Bo; Hou, Guohua; Zi, Guofu; Ding, Wanjian; Walter, Marc D.; Organometallics 36 (2017) 898–; doi:10.1021/acs.organomet.6b00936

data_4087119
_publ_section_title
;
 Experimental and Computational Studies of a Uranium Metallacyclocumulene
;
_journal_issue                   4
_journal_name_full               Organometallics
_journal_page_first              898
_journal_paper_doi               10.1021/acs.organomet.6b00936
_journal_volume                  36
_journal_year                    2017
_chemical_formula_moiety         'C59 H71 O2 Si2 Th'
_chemical_formula_sum            'C59 H71 O2 Si2 Th'
_chemical_formula_weight         1100.37
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                90
_cell_angle_beta                 92.524(9)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   44.48(2)
_cell_length_b                   10.089(5)
_cell_length_c                   24.390(13)
_cell_measurement_reflns_used    6825
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      24.92
_cell_measurement_theta_min      2.22
_cell_volume                     10935(9)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.991
_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  0.1014
_diffrn_reflns_av_unetI/netI     0.1209
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.991
_diffrn_reflns_limit_h_max       42
_diffrn_reflns_limit_h_min       -57
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            33273
_diffrn_reflns_point_group_measured_fraction_full 0.997
_diffrn_reflns_point_group_measured_fraction_max 0.991
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.502
_diffrn_reflns_theta_min         1.671
_exptl_absorpt_coefficient_mu    2.810
_exptl_absorpt_correction_T_max  0.75
_exptl_absorpt_correction_T_min  0.48
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.337
_exptl_crystal_description       block
_exptl_crystal_F_000             4472
_exptl_crystal_size_max          0.200
_exptl_crystal_size_mid          0.200
_exptl_crystal_size_min          0.150
_refine_diff_density_max         6.531
_refine_diff_density_min         -3.701
_refine_diff_density_rms         0.246
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.049
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     606
_refine_ls_number_reflns         12451
_refine_ls_number_restraints     61
_refine_ls_restrained_S_all      1.049
_refine_ls_R_factor_all          0.1038
_refine_ls_R_factor_gt           0.0763
_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^)+(0.0862P)^2^+132.6010P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1823
_refine_ls_wR_factor_ref         0.1979
_reflns_Friedel_coverage         0.000
_reflns_number_gt                9168
_reflns_number_total             12451
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            om6b00936_si_002.cif
_cod_data_source_block           compound17
_cod_original_cell_volume        10936(10)
_cod_database_code               4087119
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.603
_shelx_estimated_absorpt_t_max   0.678
_shelx_res_checksum              41737
_shelx_hkl_checksum              90372