Giant Heterometallic Cu17Mn28 Cluster with Td Symmetry and High-Spin Ground State
Wen-Guo Wang; Ai-Ju Zhou; Wei-Xiong Zhang; Ming-Liang Tong; Xiao-Ming Chen; Motohiro Nakano; Christopher C. Beedle; David N. Hendrickson; Journal of the American Chemical Society 129 (2007) 1014–1015; doi:10.1021/ja065707l

data_4109045
_publ_section_title
;
 Giant Heterometallic Cu17Mn28 Cluster with Td Symmetry and High-Spin
 Ground State
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              1014
_journal_page_last               1015
_journal_paper_doi               10.1021/ja065707l
_journal_volume                  129
_journal_year                    2007
_chemical_formula_sum            'C78 H230 Cu17 Mn28 N12 O128'
_chemical_formula_weight         6003.24
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           217
_symmetry_cell_setting           cubic
_symmetry_space_group_name_Hall  'I -4 2 3'
_symmetry_space_group_name_H-M   'I -4 3 m'
_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            2
_cell_length_a                   20.3441(9)
_cell_length_b                   20.3441(9)
_cell_length_c                   20.3441(9)
_cell_measurement_temperature    123(2)
_cell_volume                     8420.1(6)
_computing_cell_refinement       'SAINT-PLUS, Ver. 6.0, 1997'
_computing_data_collection       'SMART, 1998.'
_computing_data_reduction        'SAINT-PLUS, Ver. 6.0, 1997'
_computing_molecular_graphics    'XP, Ver. 6.10, Bruker AXS Inc., 2000'
_computing_publication_material  'SHELXTL-Bruker AXS Inc., 1998'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 0.983
_diffrn_measured_fraction_theta_max 0.983
_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  0.0535
_diffrn_reflns_av_sigmaI/netI    0.0198
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       -26
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            46387
_diffrn_reflns_theta_full        27.91
_diffrn_reflns_theta_max         27.91
_diffrn_reflns_theta_min         2.00
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    4.229
_exptl_absorpt_correction_T_max  0.6511
_exptl_absorpt_correction_T_min  0.6157
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker, 2002)'
_exptl_crystal_density_diffrn    2.368
_exptl_crystal_F_000             5998
_exptl_crystal_size_max          0.13
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.11
_refine_diff_density_max         1.077
_refine_diff_density_min         -1.366
_refine_diff_density_rms         0.148
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.04(5)
_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     126
_refine_ls_number_reflns         1837
_refine_ls_number_restraints     33
_refine_ls_restrained_S_all      1.310
_refine_ls_R_factor_all          0.0481
_refine_ls_R_factor_gt           0.0456
_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^)+(0.0690P)^2^+68.8300P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1178
_refine_ls_wR_factor_ref         0.1195
_reflns_number_gt                1758
_reflns_number_total             1837
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja065707lsi20060807_124923.cif
_cod_data_source_block           mnm
_cod_database_code               4109045