Trigonal versus tetragonal or pentagonal coordination of the uranyl ion by hexahomotrioxacalix[3]arenes: solid state and solution investigations
Masci, Bernardo; Nierlich, Martine; Thuéry, Pierre; New Journal of Chemistry 26 (2002) 120–; doi:10.1039/b108947c

data_7050756
_publ_section_title
;
 Trigonal versus tetragonal or pentagonal coordination of the uranyl
 ion by hexahomotrioxacalix[3]arenes: solid state and solution
 investigations
;
_journal_issue                   1
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              120
_journal_paper_doi               10.1039/b108947c
_journal_volume                  26
_journal_year                    2002
_chemical_formula_sum            'C33 H43 N O8 U'
_chemical_formula_weight         819.71
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_atom_sites_solution_hydrogens   geom
_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            8
_cell_length_a                   16.3031(6)
_cell_length_b                   19.6564(8)
_cell_length_c                   19.6680(8)
_cell_measurement_reflns_used    41417
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      25.68
_cell_measurement_theta_min      2.63
_cell_volume                     6302.8(4)
_computing_cell_refinement       'DENZO-SMN (Otwinowski & Minor, 1997)'
_computing_data_collection       'Kappa-CCD software (Nonius B.V., 1998)'
_computing_data_reduction        'DENZO-SMN (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 1999)'
_computing_publication_material  'SHELXTL (Sheldrick, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 18
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Nonius Kappa-CCD'
_diffrn_measurement_method       '\f scans'
_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  0.0792
_diffrn_reflns_av_sigmaI/netI    0.0445
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            41417
_diffrn_reflns_theta_full        25.68
_diffrn_reflns_theta_max         25.68
_diffrn_reflns_theta_min         2.63
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    5.202
_exptl_absorpt_correction_T_max  0.594
_exptl_absorpt_correction_T_min  0.446
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'program DELABS from PLATON (Spek, 2000)'
_exptl_crystal_colour            'translucent intense orange'
_exptl_crystal_density_diffrn    1.728
_exptl_crystal_density_meas      ?
_exptl_crystal_description       parallelepipedic
_exptl_crystal_F_000             3232
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.550
_refine_diff_density_min         -0.525
_refine_diff_density_rms         0.097
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.008
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     394
_refine_ls_number_reflns         5961
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.008
_refine_ls_R_factor_all          0.0515
_refine_ls_R_factor_gt           0.0295
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0059P)^2^+10.8520P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0518
_refine_ls_wR_factor_ref         0.0574
_reflns_number_gt                4467
_reflns_number_total             5961
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b108947c.txt
_cod_data_source_block           3
_cod_original_sg_symbol_H-M      Pbca
_cod_database_code               7050756