Molecular and electronic structure of terminal and alkali metal-capped uranium(V) nitride complexes
David M. King; Peter A. Cleaves; Ashley J. Wooles; Benedict M. Gardner; Nicholas F. Chilton; Floriana Tuna; William Lewis; Eric J. L. McInnes; Stephen T. Liddle; Nature Communications 7 (2016) 13773–; doi:10.1038/ncomms13773

data_1548089
_publ_section_title
;
 Molecular and electronic structure of terminal and alkali metal-capped
 uranium(V) nitride complexes
;
_journal_name_full               'Nature Communications'
_journal_page_first              13773
_journal_paper_doi               10.1038/ncomms13773
_journal_volume                  7
_journal_year                    2016
_chemical_formula_moiety         'C33 H75 N5 Si3 U, C20 H40 K O10'
_chemical_formula_sum            'C53 H115 K N5 O10 Si3 U'
_chemical_formula_weight         1343.89
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                79.554(3)
_cell_angle_beta                 85.928(2)
_cell_angle_gamma                81.641(2)
_cell_formula_units_Z            2
_cell_length_a                   11.3428(3)
_cell_length_b                   16.5053(5)
_cell_length_c                   18.3155(5)
_cell_measurement_reflns_used    14129
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      74.43
_cell_measurement_theta_min      4.01
_cell_volume                     3332.79(17)
_computing_cell_refinement
;
CrysAlisPro, Agilent Technologies,
Version 1.171.36.28 (release 01-02-2013 CrysAlis171 .NET)
(compiled Feb  1 2013,16:14:44)
;
_computing_data_collection
;
CrysAlisPro, Agilent Technologies,
Version 1.171.36.28 (release 01-02-2013 CrysAlis171 .NET)
(compiled Feb  1 2013,16:14:44)
;
_computing_data_reduction
;
CrysAlisPro, Agilent Technologies,
Version 1.171.36.28 (release 01-02-2013 CrysAlis171 .NET)
(compiled Feb  1 2013,16:14:44)
;
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'SHELXS (Sheldrick, 2008)'
_diffrn_ambient_temperature      120(2)
_diffrn_detector_area_resol_mean 10.3613
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.970
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, Atlas'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0382
_diffrn_reflns_av_unetI/netI     0.0469
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.970
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            25566
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.970
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         74.544
_diffrn_reflns_theta_min         3.353
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    8.345
_exptl_absorpt_correction_T_max  1.021
_exptl_absorpt_correction_T_min  0.630
_exptl_absorpt_correction_type   gaussian
_exptl_absorpt_process_details
;
CrysAlisPro, Agilent Technologies,
Version 1.171.36.28 (release 01-02-2013 CrysAlis171 .NET)
(compiled Feb  1 2013,16:14:44)
Numerical absorption correction based on gaussian integration over
a multifaceted crystal model
;
_exptl_crystal_colour            yellow
_exptl_crystal_colour_primary    yellow
_exptl_crystal_density_diffrn    1.339
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       tablet
_exptl_crystal_F_000             1402
_exptl_crystal_size_max          0.2462
_exptl_crystal_size_mid          0.0787
_exptl_crystal_size_min          0.0362
_refine_diff_density_max         1.495
_refine_diff_density_min         -2.565
_refine_diff_density_rms         0.106
_refine_ls_extinction_coef       .
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.044
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     687
_refine_ls_number_reflns         13234
_refine_ls_number_restraints     172
_refine_ls_restrained_S_all      1.056
_refine_ls_R_factor_all          0.0349
_refine_ls_R_factor_gt           0.0321
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0418P)^2^+2.9893P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0803
_refine_ls_wR_factor_ref         0.0823
_reflns_Friedel_coverage         0.000
_reflns_Friedel_fraction_full    .
_reflns_Friedel_fraction_max     .
_reflns_number_gt                12396
_reflns_number_total             13234
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            5.cif
_cod_data_source_block           5
_cod_database_code               1548089
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2. Restrained distances
 C31-C29 \\sim C31A-C29 \\sim C30-C29 \\sim C25-C23 \\sim C24-C23 \\sim C27-C26
\\sim C28-C26 \\sim C16-
 C15 \\sim C17-C15 \\sim C19-C18 \\sim C20-C18 \\sim C13-C12 \\sim C14-C12
\\sim C2-C1 \\sim C3-C1 \\sim C9-C7
 \\sim C8-C7 \\sim C5-C4 \\sim C6-C4
 with sigma of 0.01
 C31-C30 \\sim C30-C31A
 with sigma of 0.02
3. Others
 Sof(H29)=Sof(C31A)=Sof(H31D)=Sof(H31E)=Sof(H31F)=1-FVAR(1)
 Sof(H29A)=Sof(C31)=Sof(H31A)=Sof(H31B)=Sof(H31C)=FVAR(1)
4.a Ternary CH refined with riding coordinates:
 C1(H1), C4(H4), C7(H7), C12(H12), C15(H15), C18(H18), C23(H23), C26(H26),
 C29(H29A), C29(H29)
4.b Secondary CH2 refined with riding coordinates:
 C10(H10A,H10B), C11(H11A,H11B), C21(H21A,H21B), C22(H22A,H22B), C32(H32A,
 H32B), C33(H33A,H33B), C34(H34A,H34B), C35(H35A,H35B), C36(H36A,H36B),
 C37(H37A,H37B), C38(H38A,H38B), C39(H39A,H39B), C40(H40A,H40B), C41(H41A,H41B),
  C42(H42A,H42B), C43(H43A,H43B), C44(H44A,H44B), C45(H45A,H45B), C46(H46A,
 H46B), C47(H47A,H47B), C48(H48A,H48B), C49(H49A,H49B), C50(H50A,H50B),
 C51(H51A,H51B), C52(H52A,H52B), C53(H53A,H53B)
4.c Idealised Me refined as rotating group:
 C2(H2A,H2B,H2C), C3(H3A,H3B,H3C), C5(H5A,H5B,H5C), C6(H6A,H6B,H6C), C8(H8A,
 H8B,H8C), C9(H9A,H9B,H9C), C13(H13A,H13B,H13C), C14(H14A,H14B,H14C), C16(H16A,
 H16B,H16C), C17(H17A,H17B,H17C), C19(H19A,H19B,H19C), C20(H20A,H20B,H20C),
 C24(H24A,H24B,H24C), C25(H25A,H25B,H25C), C27(H27A,H27B,H27C), C28(H28A,H28B,
 H28C), C30(H30A,H30B,H30C), C31(H31A,H31B,H31C), C31A(H31D,H31E,H31F)
;
_shelx_res_checksum              38681
_shelx_hkl_checksum              79592
_olex2_submission_special_instructions 'No special instructions were received'