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_4080296
_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         'C54 H90 O2 Si6 U2'
_chemical_formula_sum            'C54 H90 O2 Si6 U2'
_chemical_formula_weight         1415.86
_chemical_name_common            complex_14
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_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                 93.03(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   18.694(4)
_cell_length_b                   26.788(5)
_cell_length_c                   12.122(2)
_cell_measurement_reflns_used    21930
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.485
_cell_measurement_theta_min      0.998
_cell_volume                     6062(2)
_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
'SIR-92 (Altomare, A. J. Appl. Cryst. (1994), 27, 435.)'
_diffrn_ambient_temperature      173(2)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_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  0.0984
_diffrn_reflns_av_sigmaI/netI    0.0639
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       34
_diffrn_reflns_limit_k_min       -34
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            43458
_diffrn_reflns_theta_full        27.45
_diffrn_reflns_theta_max         27.45
_diffrn_reflns_theta_min         2.53
_exptl_absorpt_coefficient_mu    5.490
_exptl_absorpt_correction_T_max  0.8103
_exptl_absorpt_correction_T_min  0.6678
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS 2007/2 (Sheldrick, G.M., 2007)'
_exptl_crystal_colour            Red
_exptl_crystal_density_diffrn    1.551
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Plate
_exptl_crystal_F_000             2792
_exptl_crystal_size_max          0.08
_exptl_crystal_size_mid          0.06
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.711
_refine_diff_density_min         -1.627
_refine_diff_density_rms         0.191
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.026
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     289
_refine_ls_number_reflns         6920
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.026
_refine_ls_R_factor_all          0.0666
_refine_ls_R_factor_gt           0.0384
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0336P)^2^+7.2412P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0719
_refine_ls_wR_factor_ref         0.0800
_reflns_number_gt                5138
_reflns_number_total             6920
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om301045k_si_002.cif
_cod_data_source_block           14
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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_H-M      C2/c
_cod_database_code               4080296