Effects of coordination sphere on unusually large zero field splitting and slow magnetic relaxation in trigonally symmetric molecules.
Schulte, Kelsey A.; Vignesh, Kuduva R.; Dunbar, Kim R.; Chemical science 9 (2018) 9018–9026; doi:10.1039/c8sc02820f

data_1549976
_publ_section_title
;
 Effects of coordination sphere on unusually large zero field splitting
 and slow magnetic relaxation in trigonally symmetric molecules.
;
_journal_issue                   48
_journal_name_full               'Chemical science'
_journal_page_first              9018
_journal_page_last               9026
_journal_paper_doi               10.1039/c8sc02820f
_journal_volume                  9
_journal_year                    2018
_chemical_formula_moiety         'C33 H47 Fe N4 O7 S3, C4 H12 N'
_chemical_formula_sum            'C37 H59 Fe N5 O7 S3'
_chemical_formula_weight         837.92
_chemical_properties_physical    Air-sensitive
_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'
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_date             2018-06-22
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2018-06-22 deposited with the CCDC.
2018-09-17 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90.4400(10)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   26.6560(8)
_cell_length_b                   9.6645(3)
_cell_length_c                   31.5226(9)
_cell_measurement_reflns_used    53741
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      28.30
_cell_measurement_theta_min      2.24
_cell_volume                     8120.5(4)
_computing_cell_refinement       'SAINT+ Ver. 8.34A (Bruker-AXS, 2014)'
_computing_data_collection       'APEX3(Bruker-AXS, 2015)'
_computing_data_reduction        'SAINT+ Ver. 8.34A (Bruker-AXS, 2014)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_computing_structure_solution    'SHELXTL (Sheldrick, 2008-2013)'
_diffrn_ambient_temperature      100.0
_diffrn_detector_area_resol_mean 7.9
_diffrn_detector_type            'CMOS area detector'
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.984
_diffrn_measurement_device       'three-circle diffractometer'
_diffrn_measurement_device_type  Quest
_diffrn_measurement_method       '0.5\ \w and 0.5\ \f scans'
_diffrn_radiation_collimation    'focusing mirrors'
_diffrn_radiation_monochromator  'mirror optics'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0581
_diffrn_reflns_av_unetI/netI     0.0339
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.984
_diffrn_reflns_limit_h_max       35
_diffrn_reflns_limit_h_min       -35
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       41
_diffrn_reflns_limit_l_min       -41
_diffrn_reflns_number            132790
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.984
_diffrn_reflns_theta_full        26.000
_diffrn_reflns_theta_max         28.365
_diffrn_reflns_theta_min         2.585
_diffrn_source                   'microfocus sealed X-ray tube'
_diffrn_source_type              'Incoatec I\ms'
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.579
_exptl_absorpt_correction_T_max  0.9607
_exptl_absorpt_correction_T_min  0.7890
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2014/5 (Bruker,2014/5) was used for absorption correction. wR2(int) was 0.1489 before and 0.0645 after correction. The Ratio of minimum to maximum transmission is 0.8213. The \l/2 correction factor is 0.00150.'
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.371
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             3568
_exptl_crystal_size_max          0.584
_exptl_crystal_size_mid          0.134
_exptl_crystal_size_min          0.129
_refine_diff_density_max         0.441
_refine_diff_density_min         -0.536
_refine_diff_density_rms         0.070
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.055
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     523
_refine_ls_number_reflns         9983
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.055
_refine_ls_R_factor_all          0.0549
_refine_ls_R_factor_gt           0.0384
_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^)+(0.0355P)^2^+15.5110P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0851
_refine_ls_wR_factor_ref         0.0906
_reflns_Friedel_coverage         0.000
_reflns_number_gt                8192
_reflns_number_total             9983
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8sc02820f2.cif
_cod_data_source_block           fe_mst_oh2
_cod_depositor_comments
'Adding full bibliography for 1549971--1549976.cif.'
_cod_database_code               1549976
_shelx_shelxl_version_number     2014/7
_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, All O(H,H) groups
2. Others
 Sof(C37A)=Sof(H37D)=Sof(H37E)=Sof(H37F)=Sof(C35A)=Sof(H35D)=Sof(H35E)=
 Sof(H35F)=Sof(C36A)=Sof(H36D)=Sof(H36E)=Sof(H36F)=1-FVAR(1)
 Sof(C37)=Sof(H37A)=Sof(H37B)=Sof(H37C)=Sof(C35)=Sof(H35A)=Sof(H35B)=Sof(H35C)=
 Sof(C36)=Sof(H36A)=Sof(H36B)=Sof(H36C)=FVAR(1)
3.a Rotating group:
 O7(H7A,H7B)
3.b Secondary CH2 refined with riding coordinates:
 C2(H2A,H2B), C12(H12A,H12B), C23(H23A,H23B), C1(H1A,H1B), C13(H13A,H13B),
 C24(H24A,H24B)
3.c Aromatic/amide H refined with riding coordinates:
 C6(H6), C9(H9), C20(H20), C31(H31), C17(H17), C28(H28)
3.d Idealised Me refined as rotating group:
 C5(H5A,H5B,H5C), C22(H22A,H22B,H22C), C16(H16A,H16B,H16C), C33(H33A,H33B,
 H33C), C11(H11A,H11B,H11C), C8(H8A,H8B,H8C), C30(H30A,H30B,H30C), C27(H27A,
 H27B,H27C), C19(H19A,H19B,H19C), C34(H34A,H34B,H34C), C37(H37A,H37B,H37C),
 C35(H35A,H35B,H35C), C36(H36A,H36B,H36C), C37A(H37D,H37E,H37F), C35A(H35D,H35E,
 H35F), C36A(H36D,H36E,H36F)
;
_olex2_submission_special_instructions 'No special instructions were received'