The affinity and selectivity of terdentate nitrogen ligands towards trivalent lanthanide and uranium ions viewed from the crystal structures of the 1 ∶ 3 complexes
Jean-Claude Berthet; Yannick Miquel; Peter B. Iveson; Martine Nierlich; Pierre Thuéry; Charles Madic; Michel Ephritikhine; J. Chem. Soc., Dalton Trans.  (2002) 3265–3272; doi:10.1039/b203725d

data_7011765
_publ_section_title
;
 The affinity and selectivity of terdentate nitrogen ligands towards
 trivalent lanthanide and uranium ions viewed from the crystal
 structures of the 1 &#x2236; 3 complexes
;
_journal_issue                   16
_journal_name_full               'J. Chem. Soc., Dalton Trans.'
_journal_page_first              3265
_journal_page_last               3272
_journal_paper_doi               10.1039/b203725d
_journal_year                    2002
_chemical_formula_sum            'C51 H42 Ce I3 N12'
_chemical_formula_weight         1343.79
_space_group_IT_number           155
_symmetry_cell_setting           trigonal
_symmetry_space_group_name_Hall  'R 3 2"'
_symmetry_space_group_name_H-M   'R 3 2 :H'
_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                120.00
_cell_formula_units_Z            3
_cell_length_a                   12.6180(18)
_cell_length_b                   12.6180(18)
_cell_length_c                   27.903(6)
_cell_measurement_reflns_used    7985
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      25
_cell_measurement_theta_min      2
_cell_volume                     3847.4(11)
_computing_cell_refinement       'DENZO(Otwinowski& Minor,1997)'
_computing_data_collection       'DENZO(Otwinowski& Minor,1997)'
_computing_data_reduction        'DENZO(Otwinowski& Minor,1997)'
_computing_molecular_graphics    'SHELXTL (Sheldrick,1997)'
_computing_publication_material  'SHELXTL (Sheldrick,1997)'
_computing_structure_refinement  'SHELXL-93 (Sheldrick, 1990)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1990)'
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 0.930
_diffrn_measured_fraction_theta_max 0.930
_diffrn_measurement_device       'Nonius Kappa CCD diffractometer'
_diffrn_measurement_method       '\f rotation scans with 2\%steps'
_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  0.0253
_diffrn_reflns_av_sigmaI/netI    0.0358
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       32
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            7985
_diffrn_reflns_theta_full        24.69
_diffrn_reflns_theta_max         24.69
_diffrn_reflns_theta_min         3.23
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.740
_exptl_absorpt_correction_T_max  0.801
_exptl_absorpt_correction_T_min  0.610
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'MULABS in PLATON;Spek,1998'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.740
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       irregular
_exptl_crystal_F_000             1947
_exptl_crystal_size_max          0.200
_exptl_crystal_size_mid          0.150
_exptl_crystal_size_min          0.100
_refine_diff_density_max         0.807
_refine_diff_density_min         -0.825
_refine_diff_density_rms         0.108
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.00
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.029
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     108
_refine_ls_number_reflns         1362
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.029
_refine_ls_R_factor_all          0.0349
_refine_ls_R_factor_gt           0.0333
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0468P)^2^+26.9124P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0815
_refine_ls_wR_factor_ref         0.0828
_reflns_number_gt                1316
_reflns_number_total             1362
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b203725d.txt
_cod_data_source_block           2.3MeCN
_cod_original_sg_symbol_H-M      R32
_cod_database_code               7011765