Structures and Bonding in K0.91U1.79S6and KU2Se6
Mizoguchi, Hiroshi; Gray, Danielle; Huang, Fu Qiang; Ibers, James A.; Inorganic Chemistry 45 (2006) 3307–3311; doi:10.1021/ic052140l

data_4332078
_publ_section_title
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 Structures and Bonding in K0.91U1.79S6and KU2Se6
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_journal_issue                   8
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              3307
_journal_page_last               3311
_journal_paper_doi               10.1021/ic052140l
_journal_volume                  45
_journal_year                    2006
_chemical_formula_sum            'K Se6 U2'
_chemical_formula_weight         988.92
_chemical_name_systematic        'potassium diuranium hexaselenide'
_space_group_IT_number           71
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-I 2 2'
_symmetry_space_group_name_H-M   'I m m m'
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   4.0586(6)
_cell_length_b                   5.5578(8)
_cell_length_c                   21.683(3)
_cell_measurement_reflns_used    2610
_cell_measurement_temperature    153(2)
_cell_measurement_theta_max      28.289
_cell_measurement_theta_min      3.760
_cell_volume                     489.10(12)
_computing_cell_refinement       'SMART Version 5.054 (Bruker, 2000)'
_computing_data_collection       'SMART Version 5.054 (Bruker, 2000)'
_computing_data_reduction        'Saint-Plus version 6.45a (Bruker, 2003)'
_computing_molecular_graphics    'SHELXTL-97 (Sheldrick, 1997)'
_computing_publication_material  'SHELXTL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      153(2)
_diffrn_measured_fraction_theta_full 0.930
_diffrn_measured_fraction_theta_max 0.930
_diffrn_measurement_device_type  'Bruker Smart 1000 CCD'
_diffrn_measurement_method       \w
_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  0.0248
_diffrn_reflns_av_sigmaI/netI    0.0140
_diffrn_reflns_limit_h_max       5
_diffrn_reflns_limit_h_min       -5
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            2855
_diffrn_reflns_theta_full        28.56
_diffrn_reflns_theta_max         28.56
_diffrn_reflns_theta_min         1.88
_diffrn_standards_decay_%        <2
_diffrn_standards_interval_count none
_diffrn_standards_interval_time  none
_diffrn_standards_number         none
_exptl_absorpt_coefficient_mu    55.738
_exptl_absorpt_correction_T_max  0.31462
_exptl_absorpt_correction_T_min  0.02622
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'faces indexed'
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    6.715
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'platelike needle'
_exptl_crystal_F_000             814
_exptl_crystal_size_max          0.773
_exptl_crystal_size_mid          0.039
_exptl_crystal_size_min          0.016
_refine_diff_density_max         2.966
_refine_diff_density_min         -1.965
_refine_diff_density_rms         0.382
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.648
_refine_ls_matrix_type           full
_refine_ls_number_parameters     18
_refine_ls_number_reflns         372
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.648
_refine_ls_R_factor_all          0.0206
_refine_ls_R_factor_gt           0.0204
_refine_ls_shift/su_max          0.042
_refine_ls_shift/su_mean         0.011
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0280P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0564
_refine_ls_wR_factor_ref         0.0564
_reflns_number_gt                369
_reflns_number_total             372
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic052140lsup1.cif
_cod_data_source_block           KU2Se6
_cod_depositor_comments
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The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
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_cod_original_cell_volume        489.11(13)
_cod_database_code               4332078