Steric Effects in the Reductive Coupling of CO by Mixed-Sandwich Uranium(III) Complexes
Tsoureas, Nikolaos; Summerscales, Owen T.; Cloke, F. Geoffrey N.; Roe, S. Mark; Organometallics 32 (2013) 1353–; doi:10.1021/om301045k

data_4080294
_publ_section_title
;
 Steric Effects in the Reductive Coupling of CO by Mixed-Sandwich
 Uranium(III) Complexes
;
_journal_issue                   5
_journal_name_full               Organometallics
_journal_page_first              1353
_journal_paper_doi               10.1021/om301045k
_journal_volume                  32
_journal_year                    2013
_chemical_formula_moiety         'C24 H39 Si2 U'
_chemical_formula_sum            'C24 H39 Si2 U'
_chemical_formula_weight         621.76
_chemical_name_common            complex_10b
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           159
_symmetry_cell_setting           trigonal
_symmetry_space_group_name_Hall  'P 3 -2c'
_symmetry_space_group_name_H-M   'P 3 1 c'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                120.00
_cell_formula_units_Z            6
_cell_length_a                   19.1449(14)
_cell_length_b                   19.1449(14)
_cell_length_c                   11.9066(9)
_cell_measurement_reflns_used    37085
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.485
_cell_measurement_theta_min      0.998
_cell_volume                     3779.4(5)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Bruker AXS BV, 1997-2004)'
_computing_data_reduction        'HKL Denzo and Scalepack (Otwinowski 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      173(2)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       'CCD rotation images, thick slices'
_diffrn_radiation_monochromator  'horizonally mounted graphite crystal'
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1368
_diffrn_reflns_av_sigmaI/netI    0.0959
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -23
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            27334
_diffrn_reflns_theta_full        27.21
_diffrn_reflns_theta_max         27.21
_diffrn_reflns_theta_min         3.42
_exptl_absorpt_coefficient_mu    6.544
_exptl_absorpt_correction_T_max  0.9374
_exptl_absorpt_correction_T_min  0.3270
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS 2007/2 (Sheldrick, G.M., 2007)'
_exptl_crystal_colour            Brown
_exptl_crystal_density_diffrn    1.639
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Needle
_exptl_crystal_F_000             1818
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.04
_exptl_crystal_size_min          0.01
_refine_diff_density_max         1.518
_refine_diff_density_min         -1.713
_refine_diff_density_rms         0.242
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.26(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.106
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     254
_refine_ls_number_reflns         5243
_refine_ls_number_restraints     153
_refine_ls_restrained_S_all      1.095
_refine_ls_R_factor_all          0.1020
_refine_ls_R_factor_gt           0.0693
_refine_ls_shift/su_max          0.008
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0346P)^2^+67.7963P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1285
_refine_ls_wR_factor_ref         0.1397
_reflns_number_gt                4033
_reflns_number_total             5243
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om301045k_si_002.cif
_cod_data_source_block           10b
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Trigonal' changed to 'trigonal'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_Hall     'P3 -2c'
_cod_original_sg_symbol_H-M      P31c
_cod_database_code               4080294