Single-Molecule Magnet Behavior for an Antiferromagnetically Superexchange-Coupled Dinuclear Dysprosium(III) Complex
Jérôme Long; Fatemah Habib; Po-Heng Lin; Ilia Korobkov; Gary Enright; Liviu Ungur; Wolfgang Wernsdorfer; Liviu F. Chibotaru; Muralee Murugesu; Journal of the American Chemical Society 133 (2011) 5319–5328; doi:10.1021/ja109706y

data_4105900
_publ_section_title
;
 Single-Molecule Magnet Behavior for an Antiferromagnetically
 Superexchange-Coupled Dinuclear Dysprosium(III) Complex
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              5319
_journal_page_last               5328
_journal_paper_doi               10.1021/ja109706y
_journal_volume                  133
_journal_year                    2011
_chemical_formula_sum            'C40 H46 Ho2 N8 O14'
_chemical_formula_weight         1192.71
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                66.414(2)
_cell_angle_beta                 65.1260(10)
_cell_angle_gamma                79.981(2)
_cell_formula_units_Z            1
_cell_length_a                   10.5104(4)
_cell_length_b                   10.5297(4)
_cell_length_c                   11.4828(4)
_cell_measurement_reflns_used    9900
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      28.31
_cell_measurement_theta_min      2.34
_cell_volume                     1056.59(7)
_computing_cell_refinement       'APEX II, Bruker (2009)'
_computing_data_collection       'APEX II, Bruker (2009)'
_computing_data_reduction        'XPREP, Bruker (2009)'
_computing_molecular_graphics    'SHELXTL, Bruker (2004)'
_computing_publication_material  'SHELXTL, Bruker (2004)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      200(2)
_diffrn_measured_fraction_theta_full 0.983
_diffrn_measured_fraction_theta_max 0.983
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w 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  0.0139
_diffrn_reflns_av_sigmaI/netI    0.0132
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            16595
_diffrn_reflns_theta_full        28.31
_diffrn_reflns_theta_max         28.31
_diffrn_reflns_theta_min         2.11
_exptl_absorpt_coefficient_mu    3.795
_exptl_absorpt_correction_T_max  0.5174
_exptl_absorpt_correction_T_min  0.5029
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS, Bruker (2003)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.874
_exptl_crystal_description       block
_exptl_crystal_F_000             588
_exptl_crystal_size_max          0.21
_exptl_crystal_size_mid          0.21
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.395
_refine_diff_density_min         -0.781
_refine_diff_density_rms         0.090
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.057
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     289
_refine_ls_number_reflns         5157
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.057
_refine_ls_R_factor_all          0.0131
_refine_ls_R_factor_gt           0.0130
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0218P)^2^+0.3973P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0346
_refine_ls_wR_factor_ref         0.0347
_reflns_number_gt                5109
_reflns_number_total             5157
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja109706y_si_mm002.cif
_cod_data_source_block           mm002
_cod_database_code               4105900