Synthesis and Characterization of a Novel Tetranuclear 5f Compound: A New Synthon for Exploring U(IV) Chemistry
Brian S. Newell; Trevor C. Schwaab; Matthew P. Shores; Inorganic Chemistry 50 (2011) 12108–12115; doi:10.1021/ic201670z

data_4327016
_publ_contact_author_address
;Department of Chemistry
Colorado State University
Fort Collins, CO 80521
;
_publ_contact_author_email       shores@lamar.colostate.edu
_publ_contact_author_fax         011(970)4911801
_publ_contact_author_name        'Matthew P. Shores'
_publ_contact_author_phone       011(970)4916033
_publ_section_title
;
 Synthesis and Characterization of a Novel Tetranuclear 5f Compound: A New
 Synthon for Exploring U(IV) Chemistry
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              12108
_journal_page_last               12115
_journal_paper_doi               10.1021/ic201670z
_journal_volume                  50
_journal_year                    2011
_chemical_formula_moiety         'C16 H44 P4 U'
_chemical_formula_sum            'C16 H44 P4 U'
_chemical_formula_weight         598.42
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           96
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  'P 4nw 2abw'
_symmetry_space_group_name_H-M   'P 43 21 2'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     patt
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.2692(9)
_cell_length_b                   12.2692(9)
_cell_length_c                   17.0398(14)
_cell_measurement_reflns_used    9096
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      27.47
_cell_measurement_theta_min      2.63
_cell_volume                     2565.1(3)
_computing_cell_refinement       'Bruker APEX2 (Bruker, 2009)'
_computing_data_collection       'Bruker APEX2 (Bruker, 2009)'
_computing_data_reduction        'Bruker APEX2 (Bruker, 2009)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXTL (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXTL (Sheldrick, 2008)'
_computing_structure_solution    'SHELXTL (Sheldrick, 2008)'
_diffrn_ambient_temperature      120(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \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  0.0658
_diffrn_reflns_av_sigmaI/netI    0.0323
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            37499
_diffrn_reflns_theta_full        27.53
_diffrn_reflns_theta_max         27.53
_diffrn_reflns_theta_min         2.05
_exptl_absorpt_coefficient_mu    6.573
_exptl_absorpt_correction_T_max  0.2651
_exptl_absorpt_correction_T_min  0.1187
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SCALE (Bruker, 2009)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.550
_exptl_crystal_description       block
_exptl_crystal_F_000             1168
_exptl_crystal_size_max          0.56
_exptl_crystal_size_mid          0.46
_exptl_crystal_size_min          0.28
_refine_diff_density_max         3.043
_refine_diff_density_min         -1.851
_refine_diff_density_rms         0.167
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.012(12)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.298
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     96
_refine_ls_number_reflns         2950
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.298
_refine_ls_R_factor_all          0.0370
_refine_ls_R_factor_gt           0.0318
_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^)+(0.0274P)^2^+9.3360P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0815
_refine_ls_wR_factor_ref         0.0841
_reflns_number_gt                2749
_reflns_number_total             2950
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic201670z_si_002_3.cif
_cod_data_source_block           2
_cod_database_code               4327016