First row wheels, [((t)Bu(3)SiS)MX](12)(M = Co, X = Cl; M = Ni, X = Br), are common amongst both simpler and more complex aggregates.
Sydora, Orson L; Wolczanski, Peter T; Lobkovsky, Emil B; Rumberger, Evan; Hendrickson, David N; Chemical communications (Cambridge, England)  (2004) 650–651; doi:10.1039/b311212h

data_7102512
_publ_section_title
;
 First row wheels, [((t)Bu(3)SiS)MX](12)(M = Co, X = Cl; M = Ni, X =
 Br), are common amongst both simpler and more complex aggregates.
;
_journal_issue                   6
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              650
_journal_page_last               651
_journal_paper_doi               10.1039/b311212h
_journal_year                    2004
_chemical_formula_sum            'C24 H54 Br2 Ni2 S2 Si2'
_chemical_formula_weight         740.21
_chemical_name_systematic
;
?
;
_space_group_IT_number           186
_symmetry_cell_setting           hexagonal
_symmetry_space_group_name_Hall  'P 6c -2c'
_symmetry_space_group_name_H-M   'P 63 m c'
_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                120.00
_cell_formula_units_Z            12
_cell_length_a                   26.128(16)
_cell_length_b                   26.128(16)
_cell_length_c                   24.69(2)
_cell_measurement_temperature    173(2)
_cell_volume                     14597(18)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_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      173(2)
_diffrn_measured_fraction_theta_full 0.850
_diffrn_measured_fraction_theta_max 0.850
_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  0.1259
_diffrn_reflns_av_sigmaI/netI    0.2481
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            9646
_diffrn_reflns_theta_full        22.20
_diffrn_reflns_theta_max         22.20
_diffrn_reflns_theta_min         1.22
_exptl_absorpt_coefficient_mu    2.559
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.010
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             4608
_exptl_crystal_size_max          0.6
_exptl_crystal_size_mid          0.6
_exptl_crystal_size_min          0.5
_refine_diff_density_max         0.925
_refine_diff_density_min         -0.984
_refine_diff_density_rms         0.165
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.09(7)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.128
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     192
_refine_ls_number_reflns         3730
_refine_ls_number_restraints     67
_refine_ls_restrained_S_all      1.137
_refine_ls_R_factor_all          0.2261
_refine_ls_R_factor_gt           0.1491
_refine_ls_shift/su_max          1.947
_refine_ls_shift/su_mean         0.171
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.2000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.3646
_refine_ls_wR_factor_ref         0.4001
_reflns_number_gt                1627
_reflns_number_total             3730
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b311212h.txt
_cod_data_source_block           Ni12_(5)
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Hexagonal' changed to 'hexagonal'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      'P6(3)mc '
_cod_database_code               7102512