Magnetic Exchange Coupling in Chloride-Bridged 5f-3d Heterometallic Complexes Generated via Insertion into a Uranium(IV) Dimethylpyrazolate Dimer
Stosh A. Kozimor; Bart M. Bartlett; Jeffrey D. Rinehart; Jeffrey R. Long; Journal of the American Chemical Society 129 (2007) 10672–10674; doi:10.1021/ja0725044

data_4109844
_publ_section_title
;
 Magnetic Exchange Coupling in Chloride-Bridged 5f-3d Heterometallic
 Complexes Generated via Insertion into a Uranium(IV) Dimethylpyrazolate
 Dimer
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              10672
_journal_page_last               10674
_journal_paper_doi               10.1021/ja0725044
_journal_volume                  129
_journal_year                    2007
_chemical_formula_sum            'C24 H36 N8 O U'
_chemical_formula_weight         690.64
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           11
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_symmetry_space_group_name_Hall  '-P 2yb'
_symmetry_space_group_name_H-M   'P 1 21/m 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                 91.258(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   8.6148(8)
_cell_length_b                   18.0404(17)
_cell_length_c                   8.8525(8)
_cell_measurement_reflns_used    1638
_cell_measurement_temperature    170(2)
_cell_measurement_theta_max      19.42
_cell_measurement_theta_min      2.26
_cell_volume                     1375.5(2)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      170(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0398
_diffrn_reflns_av_sigmaI/netI    0.0553
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            7751
_diffrn_reflns_theta_full        26.05
_diffrn_reflns_theta_max         26.05
_diffrn_reflns_theta_min         2.26
_exptl_absorpt_coefficient_mu    5.931
_exptl_absorpt_correction_T_max  0.7173
_exptl_absorpt_correction_T_min  0.4699
_exptl_absorpt_correction_type   none
_exptl_absorpt_process_details   'Bruker SADABS'
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.668
_exptl_crystal_density_meas      0
_exptl_crystal_description       plate
_exptl_crystal_F_000             672
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.956
_refine_diff_density_min         -0.492
_refine_diff_density_rms         0.127
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.007
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     159
_refine_ls_number_reflns         2794
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.007
_refine_ls_R_factor_all          0.0421
_refine_ls_R_factor_gt           0.0323
_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^)+(0.0373P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0721
_refine_ls_wR_factor_ref         0.0746
_reflns_number_gt                2380
_reflns_number_total             2794
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja0725044si20070410_071858.cif
_cod_data_source_block           centric
_cod_database_code               4109844