The Lanthanide Contraction Revisited
Michael Seitz; Allen G. Oliver; Kenneth N. Raymond; Journal of the American Chemical Society 129 (2007) 11153–11160; doi:10.1021/ja072750f

data_4109885
_publ_section_title
;
 The Lanthanide Contraction Revisited
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              11153
_journal_page_last               11160
_journal_paper_doi               10.1021/ja072750f
_journal_volume                  129
_journal_year                    2007
_chemical_formula_sum            'C36 H34 Eu N7 O11'
_chemical_formula_weight         892.66
_chemical_name_systematic
;
 ?
;
_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     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 96.470(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.380(3)
_cell_length_b                   26.314(5)
_cell_length_c                   10.612(2)
_cell_measurement_reflns_used    822
_cell_measurement_temperature    158(2)
_cell_measurement_theta_max      15.66
_cell_measurement_theta_min      2.48
_cell_volume                     3435.0(12)
_computing_cell_refinement       'SAINT 7.07B (Bruker, 2006)'
_computing_data_collection       'APEX V6.5.31 (Bruker, 2006)'
_computing_data_reduction        'SAINT 7.07B (Bruker, 2006)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR92 (Altomare et al., 1993)'
_diffrn_ambient_temperature      158(2)
_diffrn_detector_area_resol_mean 83.66
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.988
_diffrn_measurement_device_type  'Bruker APEX-I'
_diffrn_measurement_method       \w/2\q-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  0.0992
_diffrn_reflns_av_sigmaI/netI    0.1441
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       32
_diffrn_reflns_limit_k_min       -29
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            19433
_diffrn_reflns_theta_full        26.37
_diffrn_reflns_theta_max         26.37
_diffrn_reflns_theta_min         1.55
_diffrn_standards_decay_%        0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.902
_exptl_absorpt_correction_T_max  0.927
_exptl_absorpt_correction_T_min  0.749
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2005)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.726
_exptl_crystal_description       plate
_exptl_crystal_F_000             1800
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.07
_exptl_crystal_size_min          0.04
_refine_diff_density_max         1.360
_refine_diff_density_min         -0.751
_refine_diff_density_rms         0.163
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.008
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     496
_refine_ls_number_reflns         6936
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.008
_refine_ls_R_factor_all          0.1120
_refine_ls_R_factor_gt           0.0584
_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^)+(0.0359P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1183
_refine_ls_wR_factor_ref         0.1345
_reflns_number_gt                4280
_reflns_number_total             6936
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja072750fsi20070419_055759.cif
_cod_data_source_block           tren_eu
_cod_database_code               4109885