Enhancing the barrier height for magnetization reversal in 4d/4f RuIII2LnIII2 "butterfly" single molecule magnets (Ln = Gd, Dy) <i>via</i> targeted structural alterations.
Swain, Abinash; Martin, Robert; Vignesh, Kuduva R.; Rajaraman, Gopalan; Murray, Keith S.; Langley, Stuart K.; Dalton transactions (Cambridge, England : 2003) 50 (2021) 12265–12274; doi:10.1039/d1dt01770e

data_7708023
_publ_section_title
;
 Enhancing the barrier height for magnetization reversal in 4d/4f
 RuIII2LnIII2 "butterfly" single molecule magnets (Ln = Gd, Dy) <i>via</i>
 targeted structural alterations.
;
_journal_issue                   35
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              12265
_journal_page_last               12274
_journal_paper_doi               10.1039/d1dt01770e
_journal_volume                  50
_journal_year                    2021
_chemical_formula_sum            'C40 H48 Gd2 N4 O20 Ru2'
_chemical_formula_weight         1421.46
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2021-05-25 deposited with the CCDC.	2021-08-09 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 92.35(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   8.0820(16)
_cell_length_b                   17.209(3)
_cell_length_c                   17.212(3)
_cell_measurement_reflns_used    9362
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      27.34
_cell_measurement_theta_min      2.12
_cell_volume                     2391.9(8)
_computing_cell_refinement       'Bruker Apex2 V2.0'
_computing_data_collection       'Bruker Apex2 V2.0'
_computing_data_reduction        'Bruker Apex2 V2.0'
_computing_molecular_graphics    X-SEED
_computing_publication_material  CIFTAAB
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 0.980
_diffrn_measured_fraction_theta_max 0.980
_diffrn_measurement_device_type  'Bruker X8 Apex CCD'
_diffrn_measurement_method       'thin slice phi and omega'
_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  0.0538
_diffrn_reflns_av_sigmaI/netI    0.0331
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            38797
_diffrn_reflns_theta_full        27.92
_diffrn_reflns_theta_max         27.92
_diffrn_reflns_theta_min         2.65
_exptl_absorpt_coefficient_mu    3.436
_exptl_absorpt_correction_T_max  0.709
_exptl_absorpt_correction_T_min  0.302
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    1.974
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1384
_exptl_crystal_size_max          0.5
_exptl_crystal_size_mid          0.3
_exptl_crystal_size_min          0.1
_refine_diff_density_max         1.733
_refine_diff_density_min         -1.011
_refine_diff_density_rms         0.123
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.087
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     309
_refine_ls_number_reflns         5612
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.087
_refine_ls_R_factor_all          0.0338
_refine_ls_R_factor_gt           0.0332
_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^)+(0.0241P)^2^+7.5539P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0803
_refine_ls_wR_factor_ref         0.0807
_reflns_number_gt                5454
_reflns_number_total             5612
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            d1dt01770e2.cif
_cod_data_source_block           pt6012_CCDC2
_cod_depositor_comments
'Adding full bibliography for 7708021--7708025.cif.'
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               7708023