Regulating the magnetic properties of seven-coordinated Dy(III) single-ion magnets through the effect of positional isomers on axial crystal-field.
Dong, Yubao; Zhu, Li; Yin, Bing; Zhu, Xinrui; Li, Dongfeng; Dalton transactions (Cambridge, England : 2003)  (2021) –; doi:10.1039/d1dt02925h

data_7708883
_publ_section_title
;
 Regulating the magnetic properties of seven-coordinated Dy(III)
 single-ion magnets through the effect of positional isomers on axial
 crystal-field.
;
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_paper_doi               10.1039/d1dt02925h
_journal_year                    2021
_chemical_formula_moiety         'C30 H32 Br Dy N4 O4'
_chemical_formula_sum            'C30 H32 Br Dy N4 O4'
_chemical_formula_weight         755.00
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_audit_creation_date             2020-11-02
_audit_creation_method
;
Olex2 1.3-alpha
(compiled 2019.04.09 svn.r3586 for OlexSys, GUI svn.r5731)
;
_audit_update_record
;
2021-03-19 deposited with the CCDC.	2021-11-01 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 113.9130(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   20.971(2)
_cell_length_b                   9.7062(11)
_cell_length_c                   15.6099(17)
_cell_measurement_reflns_used    9971
_cell_measurement_temperature    296.15
_cell_measurement_theta_max      27.92
_cell_measurement_theta_min      2.35
_cell_volume                     2904.6(5)
_computing_cell_refinement       'SAINT v7.68A (Bruker, 2009)'
_computing_data_reduction        'SAINT v7.68A (Bruker, 2009)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXS (Sheldrick, 2008)'
_diffrn_ambient_temperature      296.15
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0262
_diffrn_reflns_av_unetI/netI     0.0249
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.996
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -27
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            12319
_diffrn_reflns_point_group_measured_fraction_full 0.997
_diffrn_reflns_point_group_measured_fraction_max 0.996
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.919
_diffrn_reflns_theta_min         2.125
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    3.990
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.3990
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2008/1 (Bruker,2008) was used for absorption correction.
wR2(int) was 0.1407 before and 0.0438 after correction.
The Ratio of minimum to maximum transmission is 0.5351.
The \l/2 correction factor is 0.0015.
;
_exptl_crystal_colour            'clear light colourless'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   light
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.726
_exptl_crystal_description       block
_exptl_crystal_F_000             1492
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.626
_refine_diff_density_min         -0.732
_refine_diff_density_rms         0.076
_refine_ls_extinction_coef       0.00030(6)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2018/3 (Sheldrick 2018)'
_refine_ls_goodness_of_fit_ref   1.119
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     184
_refine_ls_number_reflns         3476
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.119
_refine_ls_R_factor_all          0.0208
_refine_ls_R_factor_gt           0.0182
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0220P)^2^+2.3024P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0472
_refine_ls_wR_factor_ref         0.0486
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3255
_reflns_number_total             3476
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d1dt02925h2.cif
_cod_data_source_block           t_CCDC1
_cod_original_cell_volume        2904.7(6)
_cod_database_code               7708883
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.691
_shelx_estimated_absorpt_t_min   0.503
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Secondary CH2 refined with riding coordinates:
 C6(H6A,H6B), C7(H7A,H7B), C8(H8A,H8B)
2.b Aromatic/amide H refined with riding coordinates:
 C1(H1), C2(H2), C3(H3), C4(H4), C10(H10), C11(H11), C13(H13)
2.c Idealised Me refined as rotating group:
 C15(H15A,H15B,H15C)
;
_shelx_res_checksum              55614
_shelx_hkl_checksum              2887
_olex2_submission_special_instructions 'No special instructions were received'