What Controls the Sign and Magnitude of Magnetic Anisotropy in Tetrahedral Cobalt(II) Single-Ion Magnets?
Vaidya, Shefali; Tewary, Subrata; Singh, Saurabh Kumar; Langley, Stuart K.; Murray, Keith S.; Lan, Yanhua; Wernsdorfer, Wolfgang; Rajaraman, Gopalan; Shanmugam, Maheswaran; Inorganic chemistry 55 (2016) 9564–9578; doi:10.1021/acs.inorgchem.6b01073

data_4348214
_publ_section_title
;
 What Controls the Sign and Magnitude of Magnetic Anisotropy in
 Tetrahedral Cobalt(II) Single-Ion Magnets?
;
_journal_issue                   19
_journal_name_full               'Inorganic chemistry'
_journal_page_first              9564
_journal_page_last               9578
_journal_paper_doi               10.1021/acs.inorgchem.6b01073
_journal_volume                  55
_journal_year                    2016
_chemical_formula_sum            'C72 H160 Cl4 N16 O16 S8 Zn2'
_chemical_formula_weight         2035.17
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                82.912(3)
_cell_angle_beta                 81.025(3)
_cell_angle_gamma                89.725(2)
_cell_formula_units_Z            2
_cell_length_a                   12.8924(4)
_cell_length_b                   19.8431(6)
_cell_length_c                   20.7826(6)
_cell_measurement_reflns_used    34791
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      31.2140
_cell_measurement_theta_min      2.0520
_cell_volume                     5210.9(3)
_computing_cell_refinement       'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXL-2014/7 (Sheldrick, 2014)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Enhance (Mo) X-ray Source'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0636
_diffrn_reflns_av_unetI/netI     0.0427
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            81491
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        24.998
_diffrn_reflns_theta_max         24.998
_diffrn_reflns_theta_min         1.525
_diffrn_source                   'fine-focus sealed X-ray tube'
_exptl_absorpt_coefficient_mu    0.785
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.82379
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            WHITE
_exptl_crystal_density_diffrn    1.297
_exptl_crystal_description       BLOCK
_exptl_crystal_F_000             2176
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.21
_exptl_crystal_size_min          0.14
_refine_diff_density_max         1.165
_refine_diff_density_min         -0.874
_refine_diff_density_rms         0.203
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.198
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1077
_refine_ls_number_reflns         18350
_refine_ls_number_restraints     20
_refine_ls_restrained_S_all      1.200
_refine_ls_R_factor_all          0.0740
_refine_ls_R_factor_gt           0.0633
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0495P)^2^+29.5488P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1651
_refine_ls_wR_factor_ref         0.1784
_reflns_Friedel_coverage         0.000
_reflns_number_gt                15970
_reflns_number_total             18350
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ic6b01073_si_007.cif
_cod_data_source_block           znbutyl
_cod_database_code               4348214
_shelx_shelxl_version_number     2014/7
_shelx_res_checksum              42825
_shelx_hkl_checksum              66507