A Family of {Cr(III)2Ln(III)2} Butterfly Complexes: Effect of the Lanthanide Ion on the Single-Molecule Magnet Properties.
Langley, Stuart K.; Wielechowski, Daniel P.; Chilton, Nicholas F.; Moubaraki, Boujemaa; Murray, Keith S.; Inorganic chemistry 54 (2015) 10497–10503; doi:10.1021/acs.inorgchem.5b01999

data_4344390
_publ_section_title
;
 A Family of {Cr(III)2Ln(III)2} Butterfly Complexes: Effect of the
 Lanthanide Ion on the Single-Molecule Magnet Properties.
;
_journal_issue                   21
_journal_name_full               'Inorganic chemistry'
_journal_page_first              10497
_journal_page_last               10503
_journal_paper_doi               10.1021/acs.inorgchem.5b01999
_journal_volume                  54
_journal_year                    2015
_chemical_formula_sum            'C40 H48 Cr2 Gd2 N4 O20'
_chemical_formula_weight         1323.32
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_cell_length_c                   17.3417(6)
_cell_measurement_reflns_used    8912
_cell_measurement_temperature    123(2)
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_cell_volume                     2379.20(15)
_computing_cell_refinement       'Bruker Apex2 V2.0'
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_computing_data_reduction        'Bruker Apex2 V2.0'
_computing_molecular_graphics    X-Seed
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_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 0.960
_diffrn_measured_fraction_theta_max 0.960
_diffrn_measurement_device_type  'APEX X8'
_diffrn_measurement_method       'scans in phi and omega'
_diffrn_radiation_monochromator  graphite
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_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
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_diffrn_reflns_limit_h_max       5
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_diffrn_reflns_limit_k_min       -24
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_diffrn_reflns_limit_l_min       -24
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_diffrn_reflns_theta_full        30.52
_diffrn_reflns_theta_max         30.52
_diffrn_reflns_theta_min         2.63
_exptl_absorpt_coefficient_mu    3.277
_exptl_absorpt_correction_T_max  0.721
_exptl_absorpt_correction_T_min  0.460
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            purple
_exptl_crystal_density_diffrn    1.847
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1304
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_refine_ls_number_reflns         6979
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_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
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'calc w=1/[\s^2^(Fo^2^)+(0.0515P)^2^+1.6650P] where P=(Fo^2^+2Fc^2^)/3'
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_reflns_threshold_expression     >2sigma(I)
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_cod_depositor_comments
'Adding full bibliography for 4344389--4344394.cif.'
_cod_original_sg_symbol_H-M      p21/n
_cod_database_code               4344390