Template Synthesis and Single-Molecule Magnetism Properties of a Complex with Spin S=16 and a [Mn8O8]8+ Saddle-Like Core
Anastasios J. Tasiopoulos; Wolfgang Wernsdorfer; Brian Moulton; Michael J. Zaworotko; George Christou; Journal of the American Chemical Society 125 (2003) 15274–15275; doi:10.1021/ja0385134

data_4114502
_publ_section_title
;
 Template Synthesis and Single-Molecule Magnetism Properties of a Complex
 with Spin S=16 and a [Mn8O8]8+ Saddle-Like Core
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              15274
_journal_page_last               15275
_journal_paper_doi               10.1021/ja0385134
_journal_volume                  125
_journal_year                    2003
_chemical_formula_sum            'C24 H52 Ce Mn8 N0 O40'
_chemical_formula_weight         1560.30
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           82
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  'I -4'
_symmetry_space_group_name_H-M   'I -4'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   23.947(6)
_cell_length_b                   23.947(6)
_cell_length_c                   9.953(5)
_cell_measurement_temperature    100(2)
_cell_volume                     5708(4)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_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      100(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_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  0.1675
_diffrn_reflns_av_sigmaI/netI    0.2235
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -23
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       6
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            7469
_diffrn_reflns_theta_full        20.77
_diffrn_reflns_theta_max         20.77
_diffrn_reflns_theta_min         1.20
_exptl_absorpt_coefficient_mu    2.584
_exptl_absorpt_correction_T_max  1.000000
_exptl_absorpt_correction_T_min  0.096771
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.816
_exptl_crystal_density_meas      0
_exptl_crystal_description       needle
_exptl_crystal_F_000             3096
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.01
_refine_diff_density_max         1.674
_refine_diff_density_min         -0.958
_refine_diff_density_rms         0.370
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.03(8)
_refine_ls_extinction_coef       0.0088(9)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.033
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     336
_refine_ls_number_reflns         2958
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.033
_refine_ls_R_factor_all          0.1496
_refine_ls_R_factor_gt           0.0899
_refine_ls_shift/su_max          1.534
_refine_ls_shift/su_mean         0.010
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1310P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2163
_refine_ls_wR_factor_ref         0.2450
_reflns_number_gt                1833
_reflns_number_total             2958
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja0385134si20031103_042117.cif
_cod_data_source_block           uf0505b
_cod_database_code               4114502