Towards nanostructured arrays of single molecule magnets: new Fe19 oxyhydroxide clusters displaying high ground state spins and hysteresis †
Goodwin, Jeremy C.; Sessoli, Roberta; Gatteschi, Dante; Wernsdorfer, Wolfgang; Powell, Annie K.; Heath, Sarah L.; Journal of the Chemical Society, Dalton Transactions  (2000) 1835–; doi:10.1039/b002135k

data_7009581
_publ_section_title
;
 Towards nanostructured arrays of single molecule magnets: new Fe19
 oxyhydroxide clusters displaying high ground state spins and
 hysteresis&#x200A;&#x2020;
;
_journal_issue                   12
_journal_name_full
'Journal of the Chemical Society, Dalton Transactions'
_journal_page_first              1835
_journal_paper_doi               10.1039/b002135k
_journal_year                    2000
_chemical_formula_sum            'C80 H255 Cl Fe19 N10 O130.5'
_chemical_formula_weight         4542.54
_chemical_name_common            'Etheidi Chloride Crust'
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           2
_symmetry_cell_setting           P-1
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                117.717(2)
_cell_angle_beta                 91.271(2)
_cell_angle_gamma                91.711(2)
_cell_formula_units_Z            1
_cell_length_a                   13.4249(14)
_cell_length_b                   18.7748(19)
_cell_length_c                   20.099(2)
_cell_measurement_reflns_used    4530
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.46
_cell_measurement_theta_min      2.45
_cell_volume                     4478.9(8)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SMART'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.919
_diffrn_measured_fraction_theta_max 0.919
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.0463
_diffrn_reflns_av_sigmaI/netI    0.1645
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            29833
_diffrn_reflns_theta_full        28.35
_diffrn_reflns_theta_max         28.35
_diffrn_reflns_theta_min         1.86
_exptl_absorpt_coefficient_mu    1.619
_exptl_absorpt_correction_T_max  0.874863
_exptl_absorpt_correction_T_min  0.743117
_exptl_absorpt_correction_type   Semi-empirical
_exptl_absorpt_process_details   'repeated and equivalent reflections'
_exptl_crystal_colour            Brown
_exptl_crystal_density_diffrn    1.684
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             2360
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.03
_refine_diff_density_max         1.488
_refine_diff_density_min         -1.203
_refine_diff_density_rms         0.146
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.881
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1034
_refine_ls_number_reflns         20546
_refine_ls_number_restraints     85
_refine_ls_restrained_S_all      0.883
_refine_ls_R_factor_all          0.1502
_refine_ls_R_factor_gt           0.0668
_refine_ls_shift/su_max          0.009
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0869P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1577
_refine_ls_wR_factor_ref         0.1860
_reflns_number_gt                9640
_reflns_number_total             20546
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b002135k.txt
_cod_data_source_block           ihs48s
_cod_original_cell_volume        4479.0(8)
_cod_original_sg_symbol_H-M      triclinic
_cod_original_formula_sum        'C80 H255 Cl Fe19 N10 O130.50'
_cod_database_code               7009581