Series of dinuclear and tetranuclear lanthanide clusters encapsulated by salen-type and β-diketionate ligands: single-molecule magnet and fluorescence properties.
Sun, Wen-Bin; Han, Bing-Lu; Lin, Po-Heng; Li, Hong-Feng; Chen, Peng; Tian, Yong-Mei; Murugesu, Muralee; Yan, Peng-Fei; Dalton transactions (Cambridge, England : 2003) 42 (2013) 13397–13403; doi:10.1039/c3dt51227d

data_7021833
_publ_section_title
;
 Series of dinuclear and tetranuclear lanthanide clusters encapsulated by
 salen-type and \b-diketionate ligands: single-molecule magnet and
 fluorescence properties.
;
_journal_issue                   37
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              13397
_journal_page_last               13403
_journal_paper_doi               10.1039/c3dt51227d
_journal_volume                  42
_journal_year                    2013
_chemical_formula_sum            'C63 H76 N4 O19 Tb4'
_chemical_formula_weight         1828.96
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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                 115.9440(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   25.4209(13)
_cell_length_b                   14.9879(8)
_cell_length_c                   21.0093(11)
_cell_measurement_reflns_used    4320
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      27.26
_cell_measurement_theta_min      2.16
_cell_volume                     7198.0(7)
_computing_cell_refinement       'SAINT (Bruker, 2007)'
_computing_data_collection       'APEX 2 (Bruker, 2007)'
_computing_data_reduction        SAINT-plus
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_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  0.0398
_diffrn_reflns_av_sigmaI/netI    0.0472
_diffrn_reflns_limit_h_max       32
_diffrn_reflns_limit_h_min       -33
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            25792
_diffrn_reflns_theta_full        28.26
_diffrn_reflns_theta_max         28.26
_diffrn_reflns_theta_min         1.62
_exptl_absorpt_coefficient_mu    3.949
_exptl_absorpt_correction_T_max  0.5367
_exptl_absorpt_correction_T_min  0.4384
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.688
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             3576
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.21
_exptl_crystal_size_min          0.18
_refine_diff_density_max         1.420
_refine_diff_density_min         -1.586
_refine_diff_density_rms         0.138
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.042
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     416
_refine_ls_number_reflns         8903
_refine_ls_number_restraints     25
_refine_ls_restrained_S_all      1.042
_refine_ls_R_factor_all          0.0945
_refine_ls_R_factor_gt           0.0486
_refine_ls_shift/su_max          0.016
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0366P)^2^+74.4291P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1064
_refine_ls_wR_factor_ref         0.1274
_reflns_number_gt                5378
_reflns_number_total             8903
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3dt51227d.txt
_cod_data_source_block           42
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               7021833