Influence of Pyrazolate vs N-Heterocyclic Carbene Ligands on the Slow Magnetic Relaxation of Homoleptic Trischelate Lanthanide(III) and Uranium(III) Complexes.
Meihaus, Katie R.; Minasian, Stefan G.; Lukens, Jr, Wayne W; Kozimor, Stosh A.; Shuh, David K.; Tyliszczak, Tolek; Long, Jeffrey R.; Journal of the American Chemical Society 136 (2014) 6056–6068; doi:10.1021/ja501569t

data_4121652
_publ_section_title
;
 Influence of Pyrazolate vs N-Heterocyclic Carbene Ligands on the Slow
 Magnetic Relaxation of Homoleptic Trischelate Lanthanide(III) and
 Uranium(III) Complexes.
;
_journal_issue                   16
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              6056
_journal_page_last               6068
_journal_paper_doi               10.1021/ja501569t
_journal_volume                  136
_journal_year                    2014
_chemical_formula_sum            'C24 H36 B3 N12 Tb'
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_chemical_name_common            km20
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           148
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_computing_cell_refinement       'Bruker APEX2 v. 2009.1'
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_computing_molecular_graphics    ORTEP-32
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_diffrn_measured_fraction_theta_full 0.951
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_diffrn_measurement_device_type  'Bruker APEX-I CCD'
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_diffrn_reflns_number            17648
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_diffrn_reflns_theta_max         28.27
_diffrn_reflns_theta_min         1.79
_exptl_absorpt_coefficient_mu    2.419
_exptl_absorpt_correction_T_max  0.9094
_exptl_absorpt_correction_T_min  0.6982
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.530
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
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_refine_ls_number_reflns         2218
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.085
_refine_ls_R_factor_all          0.0216
_refine_ls_R_factor_gt           0.0194
_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^)+(0.0216P)^2^+2.0282P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0428
_refine_ls_wR_factor_ref         0.0437
_reflns_number_gt                2087
_reflns_number_total             2218
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja501569t_si_005.cif
_cod_data_source_block           shelxl
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Hexagonal' changed to 'hexagonal'
according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 

 Adding full bibliography for 4121642--4121653.cif.
;
_cod_original_sg_symbol_H-M      R-3
_cod_database_code               4121652