Synthesis and Characterization of Uranium(IV) Tetrachloro Complexes in Bis-Pyrazolylpyridine Ligand Environments
Korzekwa, Jana; Scheurer, Andreas; Heinemann, Frank; Meyer, Karsten; Dalton Trans.  (2017) –; doi:10.1039/C7DT02947K

data_7044299
_publ_section_title
;
 Synthesis and Characterization of Uranium(IV) Tetrachloro Complexes in
 Bis-Pyrazolylpyridine Ligand Environments
;
_journal_name_full               'Dalton Trans.'
_journal_paper_doi               10.1039/C7DT02947K
_journal_year                    2017
_chemical_formula_moiety         'C19 H25 Cl4 N5 U, 2(C4 H8 O)'
_chemical_formula_sum            'C27 H41 Cl4 N5 O2 U'
_chemical_formula_weight         847.48
_chemical_name_systematic
;
 ? 
;
_chemical_properties_physical    ', Air-sensitive,Moisture-sensitive'
_space_group_crystal_system      orthorhombic
_space_group_IT_number           61
_space_group_name_Hall           '-P 2ac 2ab'
_space_group_name_H-M_alt        'P b c a'
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_atom_sites_solution_hydrogens   mixed
_audit_creation_date             2017-07-04
_audit_creation_method
;
Olex2 1.2
(compiled 2017.03.28 svn.r3405 for OlexSys, GUI svn.r5337)
;
_audit_update_record
;
2017-07-05 deposited with the CCDC.
2017-09-21 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   21.9855(16)
_cell_length_b                   9.6676(7)
_cell_length_c                   30.261(2)
_cell_measurement_reflns_used    9836
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      29.52
_cell_measurement_theta_min      2.69
_cell_volume                     6431.9(8)
_computing_cell_refinement       'SAINT v7.68A (Bruker, 2009)'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'SAINT v7.68A (Bruker, 2009)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_computing_structure_solution    'SHELXTL 6.12 (Bruker AXS, 2002)'
_diffrn_ambient_temperature      150.15
_diffrn_detector_area_resol_mean 83.33
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker Kappa APEX II'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  'Quazar focussing montel optics'
_diffrn_radiation_source         'ImuS micro-focus tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0435
_diffrn_reflns_av_unetI/netI     0.0275
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       29
_diffrn_reflns_limit_h_min       -29
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       40
_diffrn_reflns_limit_l_min       -40
_diffrn_reflns_number            58595
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.700
_diffrn_reflns_theta_min         2.666
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    5.412
_exptl_absorpt_correction_T_max  0.7433
_exptl_absorpt_correction_T_min  0.5425
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2008/1 (Bruker,2008) was used for absorption correction.
wR2(int) was 0.0876 before and 0.0492 after correction.
The Ratio of minimum to maximum transmission is 0.7299.
The \l/2 correction factor is 0.0015.
;
_exptl_crystal_colour            green
_exptl_crystal_colour_primary    green
_exptl_crystal_density_diffrn    1.750
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             3312
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: diethylether, tetrahydrofuran, n-hexane'
_exptl_crystal_size_max          0.12
_exptl_crystal_size_mid          0.09
_exptl_crystal_size_min          0.06
_refine_diff_density_max         3.022
_refine_diff_density_min         -0.794
_refine_diff_density_rms         0.117
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.057
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     366
_refine_ls_number_reflns         8293
_refine_ls_number_restraints     30
_refine_ls_restrained_S_all      1.066
_refine_ls_R_factor_all          0.0413
_refine_ls_R_factor_gt           0.0268
_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^)+(0.0336P)^2^+7.3880P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0627
_refine_ls_wR_factor_ref         0.0692
_reflns_Friedel_coverage         0.000
_reflns_number_gt                6634
_reflns_number_total             8293
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c7dt02947k1.cif
_cod_data_source_block           sa1204
_cod_database_code               7044299
_shelx_shelxl_version_number     2016/6
_shelx_estimated_absorpt_t_max   0.737
_shelx_estimated_absorpt_t_min   0.563
_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. Uiso/Uaniso restraints and constraints
O200 \\sim C201 \\sim C202 \\sim C203 \\sim C204: within 2A with sigma of 0.01
and sigma for terminal atoms of 0.02
3.a Secondary CH2 refined with riding coordinates:
 C101(H10A,H10B), C102(H10C,H10D), C103(H10E,H10F), C104(H10G,H10H), C201(H20A,
 H20B), C202(H20C,H20D), C203(H20E,H20F), C204(H20G,H20H)
3.b Aromatic/amide H refined with riding coordinates:
 C2(H2A), C5(H5A), C6(H6), C7(H7), C10(H10)
3.c Idealised Me refined as rotating group:
 C13(H13A,H13B,H13C), C14(H14A,H14B,H14C), C15(H15A,H15B,H15C), C17(H17A,H17B,
 H17C), C18(H18A,H18B,H18C), C19(H19A,H19B,H19C)
;
_shelx_res_checksum              27187
_olex2_submission_special_instructions 'No special instructions were received'