A delocalized arene-bridged diuranium single-molecule magnet.
Mills, David P.; Moro, Fabrizio; McMaster, Jonathan; van Slageren, Joris; Lewis, William; Blake, Alexander J.; Liddle, Stephen T.; Nature chemistry 3 (2011) 454–460; doi:10.1038/nchem.1028

data_1507935
_publ_section_title
;
 A delocalized arene-bridged diuranium single-molecule magnet.
;
_journal_issue                   6
_journal_name_full               'Nature chemistry'
_journal_page_first              454
_journal_page_last               460
_journal_paper_doi               10.1038/nchem.1028
_journal_volume                  3
_journal_year                    2011
_chemical_formula_moiety         'C35 H47 I2 N2 O P2 Si2 U, 3 C7H8'
_chemical_formula_sum            'C56 H71 I2 N2 O P2 Si2 U'
_chemical_formula_weight         1398.15
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   'geom, Me from difmap'
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           'enCIFer editing of SHELXL97 CIF output'
_cell_angle_alpha                74.697(4)
_cell_angle_beta                 78.713(4)
_cell_angle_gamma                81.039(4)
_cell_formula_units_Z            2
_cell_length_a                   9.836(3)
_cell_length_b                   12.370(3)
_cell_length_c                   22.185(6)
_cell_measurement_reflns_used    8381
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.44
_cell_measurement_theta_min      2.25
_cell_volume                     2537.7(12)
_computing_cell_refinement       'Bruker SAINT version 6.36a (Bruker, 2000)'
_computing_data_collection       'Bruker SMART version 5.625 (Bruker, 2001)'
_computing_data_reduction        'Bruker SAINT; Bruker SHELXTL (Bruker, 2001)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material
'enCIFer(Allen et al.,2004);PLATON(Spek,2003)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.943
_diffrn_measurement_device_type  'Bruker SMART APEX CCD diffractometer'
_diffrn_measurement_method       '\w rotation with narrow frames'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'normal-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0609
_diffrn_reflns_av_sigmaI/netI    0.0985
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            21381
_diffrn_reflns_theta_full        25.05
_diffrn_reflns_theta_max         27.86
_diffrn_reflns_theta_min         0.96
_diffrn_standards_decay_%        0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    4.548
_exptl_absorpt_correction_T_max  0.7124
_exptl_absorpt_correction_T_min  0.3731
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2001)'
_exptl_crystal_colour            purple
_exptl_crystal_density_diffrn    1.830
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1070
_exptl_crystal_size_max          0.27
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.08
_platon_squeeze_details
;
;
_refine_diff_density_max         8.126
_refine_diff_density_min         -2.983
_refine_diff_density_rms         0.258
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.956
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     412
_refine_ls_number_reflns         11364
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.956
_refine_ls_R_factor_all          0.0863
_refine_ls_R_factor_gt           0.0640
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1002P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1555
_refine_ls_wR_factor_ref         0.1648
_reflns_number_gt                8140
_reflns_number_total             11364
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            nchem.1028-s7.cif
_cod_data_source_block           6
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_database_code               1507935
_nottingham_internal_coll_name   UDPMLD
_nottingham_internal_coll_number 8715
_nottingham_internal_coll_client DPM/STL
_nottingham_internal_coll_type   SPHERE
_nottingham_internal_coll_frame_time 40s
_nottingham_internal_coll_frame_width '0.3 DEGREES'
_nottingham_internal_coll_frame_method '\w SCANS'
_nottingham_internal_coll_user   DPM
_nottingham_internal_coll_date   11/7/2009
_nottingham_internal_process_user DPM
_nottingham_internal_process_date 13/7/2009
_nottingham_internal_solution_user DPM
_nottingham_internal_solution_date 13/7/2009
_nottingham_internal_refinement_user DPM
_nottingham_internal_refinement_date 13/7/2009
_nottingham_internal_validation_user WL
_nottingham_internal_validation_date 5/8/2010
_nottingham_internal_archive_date 5/8/2010