Surprisingly Bright Near-Infrared Luminescence and Short Radiative Lifetimes of Ytterbium in Hetero-Binuclear Yb-Na Chelates
Nail M. Shavaleev; Rosario Scopelliti; Frédéric Gumy; Jean-Claude G. Bünzli; Inorganic Chemistry 48 (2009) 7937–7946; doi:10.1021/ic900888m

data_4302955
_publ_contact_author_address
;Ecole polytechnique f\'ed\'erale de Lausanne
Institut des sciences et ing\'enierie chimiques
EPFL SB ISIC LCSL
BCH 1402 (B\^at. BCH)
CH-1015 Lausanne
Switzerland
;
_publ_contact_author_email       jean-claude.bunzli@epfl.ch
_publ_contact_author_fax         '+41 21 693 98 25'
_publ_contact_author_name        'Jean-Claude B\"unzli'
_publ_contact_author_phone       '+41 21 693 98 21'
_publ_section_title
;
Surprisingly Bright Near-Infrared Luminescence and Short Radiative
Lifetimes of Ytterbium in Hetero-Binuclear Yb-Na Chelates
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              7937
_journal_page_last               7946
_journal_paper_doi               10.1021/ic900888m
_journal_volume                  48
_journal_year                    2009
_chemical_formula_moiety         'C64 H32 Cl4 N8 Na O8 Yb'
_chemical_formula_sum            'C64 H32 Cl4 N8 Na O8 Yb'
_chemical_formula_weight         1378.81
_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                 100.95(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   22.139(9)
_cell_length_b                   19.226(6)
_cell_length_c                   13.166(3)
_cell_measurement_reflns_used    84
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      12.697
_cell_measurement_theta_min      3.244
_cell_volume                     5502(3)
_computing_cell_refinement       'Dirax/lsq (Duisenberg & Schreurs, 1989-2000)'
_computing_data_collection       'Collect (Bruker AXS BV, 1997-2004)'
_computing_data_reduction        'EvalCCD (Duisenberg & Schreurs, 1990-2000)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'Bruker APEX II CCD'
_diffrn_measurement_method       'phi and omega 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  0.1709
_diffrn_reflns_av_sigmaI/netI    0.0941
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            45131
_diffrn_reflns_theta_full        21.10
_diffrn_reflns_theta_max         21.10
_diffrn_reflns_theta_min         3.31
_exptl_absorpt_coefficient_mu    1.970
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.5816
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS V2.10, G.M. Sheldrick, 2003'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.664
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             2740
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.09
_exptl_crystal_size_min          0.06
_refine_diff_density_max         4.829
_refine_diff_density_min         -1.497
_refine_diff_density_rms         0.189
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.059
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     713
_refine_ls_number_reflns         5939
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.060
_refine_ls_R_factor_all          0.1248
_refine_ls_R_factor_gt           0.0789
_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^)+(0.1091P)^2^+0.3525P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1804
_refine_ls_wR_factor_ref         0.2107
_reflns_number_gt                4008
_reflns_number_total             5939
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic900888m_si_002_3.cif
_cod_data_source_block           Na[Yb(LCl)4]
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_database_code               4302955