What a Difference a 5f Element Makes: Trivalent and Tetravalent Uranium Halide Complexes Supported by One and Two Bis[2-(diisopropylphosphino)-4-methylphenyl]amido (PNP) Ligands
Thibault Cantat; Brian L. Scott; David E. Morris; Jaqueline L. Kiplinger; Inorganic Chemistry 48 (2009) 2114–2127; doi:10.1021/ic802061x

data_4301594
_publ_section_title
;
What a Difference a 5f Element Makes: Trivalent and Tetravalent Uranium
Halide Complexes Supported by One and Two
Bis[2-(diisopropylphosphino)-4-methylphenyl]amido (PNP) Ligands
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              2114
_journal_page_last               2127
_journal_paper_doi               10.1021/ic802061x
_journal_volume                  48
_journal_year                    2009
_chemical_formula_sum            'C56 H88 Cl2 N2 O P4 U'
_chemical_formula_weight         1238.09
_chemical_name_systematic
; 
 ? 
;
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_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
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_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
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_cell_angle_beta                 110.0870(10)
_cell_angle_gamma                113.5150(10)
_cell_formula_units_Z            2
_cell_length_a                   13.6641(18)
_cell_length_b                   14.1260(18)
_cell_length_c                   17.874(2)
_cell_measurement_temperature    120(1)
_cell_volume                     2916.0(6)
_computing_cell_refinement       'SAINT+, v. 7.06 (Bruker AXS, 2001)'
_computing_data_collection       'APEX II, v. 1.08 (Bruker AXS, 2003)'
_computing_data_reduction        'SAINT+, v. 7.06 (Bruker AXS, 2001)'
_computing_molecular_graphics    'SHELXTL, v. 6.10, (Bruker AXS, 2000)'
_computing_publication_material  'SHELXTL, v. 6.10, (Bruker AXS, 2000)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      120(1)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.910
_diffrn_measurement_device_type  'Bruker D8 with APEXII CCD'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0625
_diffrn_reflns_av_sigmaI/netI    0.0815
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -17
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_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -22
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_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         28.33
_diffrn_reflns_theta_min         1.79
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    3.022
_exptl_absorpt_correction_T_max  0.7940
_exptl_absorpt_correction_T_min  0.5561
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS 2.03 (Sheldrick, 2001)'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.410
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1264
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.786
_refine_diff_density_min         -0.762
_refine_diff_density_rms         0.148
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.872
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     595
_refine_ls_number_reflns         13237
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.872
_refine_ls_R_factor_all          0.0501
_refine_ls_R_factor_gt           0.0406
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0712P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1021
_refine_ls_wR_factor_ref         0.1090
_reflns_number_gt                11341
_reflns_number_total             13237
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic802061x_si_001_2.cif
_cod_data_source_block           apx644
_cod_original_cell_volume        2916.0(7)
_cod_database_code               4301594