Synthesis and structural characterization of novel mixed-valent samarium and divalent ytterbium and europium complexes supported by amine bis(phenolate) ligands.
Guo, Huadong; Zhou, Hui; Yao, Yingming; Zhang, Yong; Shen, Qi; Dalton transactions (Cambridge, England : 2003)  (2007) 3555–3561; doi:10.1039/b705353c

data_7005790
_publ_section_title
;
 Synthesis and structural characterization of novel mixed-valent
 samarium and divalent ytterbium and europium complexes supported by
 amine bis(phenolate) ligands.
;
_journal_issue                   32
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              3555
_journal_page_last               3561
_journal_paper_doi               10.1039/b705353c
_journal_year                    2007
_chemical_formula_moiety         'C68 H108 Eu2 N4 O4, C4 H8 O'
_chemical_formula_sum            'C72 H116 Eu2 N4 O5'
_chemical_formula_weight         1421.61
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_Int_Tables_number      2
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                88.847(9)
_cell_angle_beta                 86.999(9)
_cell_angle_gamma                84.992(7)
_cell_formula_units_Z            2
_cell_length_a                   9.6760(11)
_cell_length_b                   14.2953(19)
_cell_length_c                   27.072(4)
_cell_measurement_reflns_used    14696
_cell_measurement_temperature    193(2)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      3.0
_cell_volume                     3724.8(9)
_computing_cell_refinement       CrystalClear
_computing_data_collection       CrystalClear
_computing_data_reduction        CrystalStructure
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      193(2)
_diffrn_detector_area_resol_mean 7.31
_diffrn_measured_fraction_theta_full 0.977
_diffrn_measured_fraction_theta_max 0.977
_diffrn_measurement_device_type  'Rigaku Mercury'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71070
_diffrn_reflns_av_R_equivalents  0.0516
_diffrn_reflns_av_sigmaI/netI    0.0821
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       34
_diffrn_reflns_limit_l_min       -32
_diffrn_reflns_number            39679
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         3.01
_exptl_absorpt_coefficient_mu    1.715
_exptl_absorpt_correction_T_max  0.7364
_exptl_absorpt_correction_T_min  0.5618
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Jacobson, R. (1998) Private communication'
_exptl_crystal_colour            orange-yellow
_exptl_crystal_density_diffrn    1.268
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1484
_exptl_crystal_size_max          0.38
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.19
_refine_diff_density_max         2.908
_refine_diff_density_min         -1.682
_refine_diff_density_rms         0.166
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.106
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     752
_refine_ls_number_reflns         16724
_refine_ls_number_restraints     5
_refine_ls_restrained_S_all      1.107
_refine_ls_R_factor_all          0.1171
_refine_ls_R_factor_gt           0.0867
_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^)+(0.0671P)^2^+31.8314P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1894
_refine_ls_wR_factor_ref         0.2103
_reflns_number_gt                12279
_reflns_number_total             16724
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b705353c.txt
_cod_data_source_block           complexl
_cod_original_cell_volume        3724.8(8)
_cod_original_sg_symbol_Hall     '-p 1'
_cod_original_sg_symbol_H-M      'p -1'
_cod_database_code               7005790