Highly luminescent bis-diketone lanthanide complexes with triple-stranded dinuclear structure.
Li, Hong-Feng; Yan, Peng-Fei; Chen, Peng; Wang, Yan; Xu, Hui; Li, Guang-Ming; Dalton transactions (Cambridge, England : 2003) 41 (2012) 900–907; doi:10.1039/c1dt11496d

data_7017826
_publ_section_title
;
 Highly luminescent bis-diketone lanthanide complexes with triple-stranded
 dinuclear structure.
;
_journal_issue                   3
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              900
_journal_page_last               907
_journal_paper_doi               10.1039/c1dt11496d
_journal_volume                  41
_journal_year                    2012
_chemical_formula_sum            'C64 H46 Eu2 F18 O16'
_chemical_formula_weight         1716.93
_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                 119.76(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   20.417(4)
_cell_length_b                   21.521(4)
_cell_length_c                   17.649(3)
_cell_measurement_temperature    293(2)
_cell_volume                     6732(3)
_computing_cell_refinement       SAINT-plus
_computing_data_collection       SMART
_computing_data_reduction        SAINT-plus
_computing_molecular_graphics    SHELXL97
_computing_structure_refinement  SHELXL97
_computing_structure_solution    SHELXS97
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker SMART1000 CCD'
_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  0.0338
_diffrn_reflns_av_sigmaI/netI    0.0288
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       27
_diffrn_reflns_limit_k_min       -27
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            32099
_diffrn_reflns_theta_full        27.46
_diffrn_reflns_theta_max         27.46
_diffrn_reflns_theta_min         3.06
_exptl_absorpt_coefficient_mu    1.961
_exptl_absorpt_correction_T_max  0.760
_exptl_absorpt_correction_T_min  0.738
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            buff
_exptl_crystal_density_diffrn    1.694
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             3384
_exptl_crystal_size_max          0.16
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.14
_refine_diff_density_max         1.971
_refine_diff_density_min         -0.661
_refine_diff_density_rms         0.132
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.070
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     458
_refine_ls_number_reflns         7681
_refine_ls_number_restraints     4
_refine_ls_restrained_S_all      1.070
_refine_ls_R_factor_all          0.0557
_refine_ls_R_factor_gt           0.0457
_refine_ls_shift/su_max          0.163
_refine_ls_shift/su_mean         0.015
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0895P)^2^+11.5786P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1348
_refine_ls_wR_factor_ref         0.1437
_reflns_number_gt                6225
_reflns_number_total             7681
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c1dt11496d.txt
_cod_data_source_block           shelxl_c
_cod_original_cell_volume        6732(2)
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               7017826