Single Crystal Structures and Theoretical Calculations of Uranium Endohedral Metallofullerenes (U@C2n, 2n=74, 82) Show Cage Isomer Dependent Oxidation States for U
Cai, Wenting; Morales-Martínez, Roser; Zhang, Xingxing; Najera, Daniel; Romero, Elkin; Metta Magana, Alejandro Jose; Rodriguez-Fortea, Antonio; Fortier, Skye; Chen, Ning; Poblet, Josep M.; Echegoyen, Luis; Chem. Sci.  (2017) –; doi:10.1039/C7SC01711A

data_1546091
_publ_section_title
;
 Single Crystal Structures and Theoretical Calculations of Uranium
 Endohedral Metallofullerenes (U@C2n, 2n=74, 82) Show Cage Isomer
 Dependent Oxidation States for U
;
_journal_name_full               'Chem. Sci.'
_journal_paper_doi               10.1039/C7SC01711A
_journal_year                    2017
_chemical_formula_sum            'C122 H56 N4 Ni U'
_chemical_formula_weight         1874.44
_chemical_name_systematic
;
 ?
;
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_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-2013
_audit_update_record
;
2016-10-06 deposited with the CCDC.
2017-05-22 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 94.044(2)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   25.102(3)
_cell_length_b                   14.9208(19)
_cell_length_c                   38.636(5)
_cell_measurement_reflns_used    10703
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      54.666
_cell_measurement_theta_min      4.390
_cell_volume                     14435(3)
_computing_cell_refinement       'Bruker XSCANS'
_computing_data_collection       'Bruker XSCANS'
_computing_data_reduction        'Bruker SHELXTL'
_computing_publication_material  'SHELXL-2013 (Sheldrick, 2013)'
_computing_structure_refinement  'SHELXL-2013 (Sheldrick, 2013)'
_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.988
_diffrn_measurement_device_type  'Bruker P4'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0981
_diffrn_reflns_av_unetI/netI     0.1150
_diffrn_reflns_Laue_measured_fraction_full 0.994
_diffrn_reflns_Laue_measured_fraction_max 0.988
_diffrn_reflns_limit_h_max       33
_diffrn_reflns_limit_h_min       -33
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       51
_diffrn_reflns_limit_l_min       -47
_diffrn_reflns_number            70532
_diffrn_reflns_point_group_measured_fraction_full 0.994
_diffrn_reflns_point_group_measured_fraction_max 0.988
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.464
_diffrn_reflns_theta_min         1.627
_diffrn_source                   'sealed tube'
_exptl_absorpt_coefficient_mu    2.571
_exptl_absorpt_correction_T_max  0.773
_exptl_absorpt_correction_T_min  0.562
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    1.725
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             7488
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.19
_exptl_crystal_size_min          0.10
_refine_diff_density_max         2.153
_refine_diff_density_min         -2.043
_refine_diff_density_rms         0.157
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.813
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1873
_refine_ls_number_reflns         18022
_refine_ls_number_restraints     3929
_refine_ls_restrained_S_all      1.872
_refine_ls_R_factor_all          0.1705
_refine_ls_R_factor_gt           0.1247
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
;
 w=1/[\s^2^(Fo^2^)+(0.1000P)^2^]
 where P=(Fo^2^+2Fc^2^)/3
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.3214
_refine_ls_wR_factor_ref         0.3355
_reflns_Friedel_coverage         0.000
_reflns_number_gt                11937
_reflns_number_total             18022
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c7sc01711a2.cif
_cod_data_source_block           26
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Multi-scan' changed to
'multi-scan' according to
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 4973 2017-02-22 13:04:09Z antanas 
;
_cod_original_formula_sum        'C122 H56 N4 Ni1 U1'
_cod_database_code               1546091
_shelxl_version_number           2013-2
_shelx_res_checksum              11891