Slow Magnetic Relaxation in Novel Dy4 and Dy8 Compounds
Pei-Pei Yang; Xi-Feng Gao; Hai-Bin Song; Sai Zhang; Xue-Lan Mei; Li-Cun Li; Dai-Zheng Liao; Inorganic Chemistry 50 (2011) 720–722; doi:10.1021/ic1021643

data_4324375
_publ_section_title
;
 Slow Magnetic Relaxation in Novel Dy4 and Dy8 Compounds
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              720
_journal_page_last               722
_journal_paper_doi               10.1021/ic1021643
_journal_volume                  50
_journal_year                    2011
_chemical_formula_sum            'C146.18 H139.27 Dy8 N17.09 O83'
_chemical_formula_weight         4763.50
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           13
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yac'
_symmetry_space_group_name_H-M   'P 1 2/n 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                 95.524(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   18.164(3)
_cell_length_b                   15.223(2)
_cell_length_c                   31.266(5)
_cell_measurement_reflns_used    29450
_cell_measurement_temperature    113(2)
_cell_measurement_theta_max      28.0
_cell_measurement_theta_min      1.5
_cell_volume                     8605(2)
_computing_cell_refinement       CrystalClear
_computing_data_collection       CrystalClear
_computing_data_reduction        CrystalClear
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'CrystalStructure 3.8'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      113(2)
_diffrn_detector_area_resol_mean 14.63
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Rigaku Saturn CCD area detector'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  multilayer
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0389
_diffrn_reflns_av_sigmaI/netI    0.0396
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       37
_diffrn_reflns_limit_l_min       -37
_diffrn_reflns_number            57558
_diffrn_reflns_theta_full        25.02
_diffrn_reflns_theta_max         25.02
_diffrn_reflns_theta_min         1.31
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    3.533
_exptl_absorpt_correction_T_max  0.6193
_exptl_absorpt_correction_T_min  0.5384
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   CrystalClear
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.838
_exptl_crystal_description       block
_exptl_crystal_F_000             4656
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.15
_refine_diff_density_max         1.674
_refine_diff_density_min         -1.582
_refine_diff_density_rms         0.138
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.161
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1171
_refine_ls_number_reflns         15171
_refine_ls_number_restraints     221
_refine_ls_restrained_S_all      1.165
_refine_ls_R_factor_all          0.0417
_refine_ls_R_factor_gt           0.0393
_refine_ls_shift/su_max          0.008
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0243P)^2^+51.5007P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0885
_refine_ls_wR_factor_ref         0.0896
_reflns_number_gt                14518
_reflns_number_total             15171
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic1021643_si_002_2.cif
_cod_data_source_block           2
_cod_database_code               4324375