Highly luminescent charge-neutral europium(iii) and terbium(iii) complexes with tridentate nitrogen ligands.
Senthil Kumar, Kuppusamy; Schäfer, Bernhard; Lebedkin, Sergei; Karmazin, Lydia; Kappes, Manfred M.; Ruben, Mario; Dalton transactions (Cambridge, England : 2003) 44 (2015) 15611–15619; doi:10.1039/c5dt02186c

data_7035996
_publ_section_title
;
 Highly luminescent charge-neutral europium(iii) and terbium(iii)
 complexes with tridentate nitrogen ligands.
;
_journal_issue                   35
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              15611
_journal_page_last               15619
_journal_paper_doi               10.1039/c5dt02186c
_journal_volume                  44
_journal_year                    2015
_chemical_formula_moiety         'C27 H18 N21 Tb, 3(C H4 O)'
_chemical_formula_sum            'C30 H30 N21 O3 Tb'
_chemical_formula_weight         891.67
_space_group_crystal_system      trigonal
_space_group_IT_number           148
_space_group_name_Hall           '-R 3'
_space_group_name_H-M_alt        'R -3 :H'
_symmetry_space_group_name_Hall  '-R 3'
_symmetry_space_group_name_H-M   'R -3 :H'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2013
_audit_update_record
;
2015-03-31 deposited with the CCDC.
2015-07-29 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            6
_cell_length_a                   16.980(5)
_cell_length_b                   16.980(5)
_cell_length_c                   21.806(5)
_cell_measurement_reflns_used    7426
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      31.03
_cell_measurement_theta_min      2.33
_cell_volume                     5445(3)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2013 (Sheldrick, 2013)'
_computing_structure_solution    'SHELXS-2013 (Sheldrick, 2013)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0291
_diffrn_reflns_av_unetI/netI     0.0277
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            14660
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         31.031
_diffrn_reflns_theta_min         1.670
_diffrn_source                   'fine focus sealed tube'
_exptl_absorpt_coefficient_mu    2.014
_exptl_absorpt_correction_T_max  0.7462
_exptl_absorpt_correction_T_min  0.6662
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.632
_exptl_crystal_description       prism
_exptl_crystal_F_000             2676
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.20
_platon_squeeze_details
;
 The residual electron density was assigned to third a molecule of the
 methanol solvent [116/18 = 6 e per asymmetric unit; third a molecule
 of CH3OH would give 6e].
;
_refine_diff_density_max         1.313
_refine_diff_density_min         -0.527
_refine_diff_density_rms         0.088
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.078
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     168
_refine_ls_number_reflns         3871
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.078
_refine_ls_R_factor_all          0.0274
_refine_ls_R_factor_gt           0.0228
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0267P)^2^+3.1512P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0510
_refine_ls_wR_factor_ref         0.0519
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3514
_reflns_number_total             3871
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c5dt02186c2.cif
_cod_data_source_block           ldskk150120
_cod_depositor_comments
'Adding full bibliography for 7035995--7035996.cif.'
_cod_database_code               7035996
_shelxl_version_number           2013-4
_shelx_res_checksum              79495