Lanthanide(III)/actinide(III) differentiation in coordination of azine molecules to tris(cyclopentadienyl) complexes of cerium and uranium.
Mehdoui, Thouraya; Berthet, Jean-Claude; Thuéry, Pierre; Ephritikhine, Michel; Dalton transactions (Cambridge, England : 2003)  (2004) 579–590; doi:10.1039/b313992a

data_7013761
_publ_section_title
;
 Lanthanide(III)/actinide(III) differentiation in coordination of azine
 molecules to tris(cyclopentadienyl) complexes of cerium and uranium.
;
_journal_issue                   4
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              579
_journal_page_last               590
_journal_paper_doi               10.1039/b313992a
_journal_year                    2004
_chemical_formula_sum            'C33 H47 Ce N2'
_chemical_formula_weight         611.85
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     patter
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 102.978(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   19.9794(10)
_cell_length_b                   20.3310(11)
_cell_length_c                   15.4327(6)
_cell_measurement_reflns_used    41749
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      25.68
_cell_measurement_theta_min      2.86
_cell_volume                     6108.7(5)
_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, 1997)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_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  0.0877
_diffrn_reflns_av_sigmaI/netI    0.0836
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            41749
_diffrn_reflns_theta_full        25.68
_diffrn_reflns_theta_max         25.68
_diffrn_reflns_theta_min         2.86
_diffrn_standards_decay_%        0
_diffrn_standards_interval_time  0
_exptl_absorpt_coefficient_mu    1.512
_exptl_absorpt_correction_T_max  0.984
_exptl_absorpt_correction_T_min  0.744
_exptl_absorpt_correction_type   refdelf
_exptl_absorpt_process_details   'program DELABS from PLATON (Spek, 2000)'
_exptl_crystal_colour            'translucent light orange'
_exptl_crystal_density_diffrn    1.331
_exptl_crystal_density_meas      ?
_exptl_crystal_description       platelet
_exptl_crystal_F_000             2536
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.612
_refine_diff_density_min         -0.633
_refine_diff_density_rms         0.136
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.967
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     671
_refine_ls_number_reflns         11544
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.967
_refine_ls_R_factor_all          0.1248
_refine_ls_R_factor_gt           0.0520
_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^)+(0.0235P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0866
_refine_ls_wR_factor_ref         0.1070
_reflns_number_gt                6401
_reflns_number_total             11544
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b313992a.txt
_cod_data_source_block           (Ce,Bu^t^,dimethylpyrazine)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7013761