Octanuclear Copper(I) Clusters Inscribed in a Se12 Icosahedron: Anion-Induced Modulation of the Core Size and Symmetry
C. W. Liu; Bijay Sarkar; Yao-Jheng Huang; Ping-Kuei Liao; Ju-Chun Wang; Jean-Yves Saillard; Samia Kahlal; Journal of the American Chemical Society 131 (2009) 11222–11233; doi:10.1021/ja904089t

data_4104843
_publ_section_title
;
 Octanuclear Copper(I) Clusters Inscribed in a Se12 Icosahedron:
 Anion-Induced Modulation of the Core Size and Symmetry
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              11222
_journal_page_last               11233
_journal_paper_doi               10.1021/ja904089t
_journal_volume                  131
_journal_year                    2009
_chemical_formula_sum            'C24 H61 Cu8 F6 O12 P7 Se12'
_chemical_formula_weight         2328.36
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           167
_symmetry_cell_setting           trigonal
_symmetry_space_group_name_Hall  '-R 3 2"c'
_symmetry_space_group_name_H-M   'R -3 c :H'
_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                   17.6955(3)
_cell_length_b                   17.6955(3)
_cell_length_c                   71.878(3)
_cell_measurement_reflns_used    8880
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      26.28
_cell_measurement_theta_min      2.30
_cell_volume                     19491.8(9)
_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, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_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  0.0633
_diffrn_reflns_av_sigmaI/netI    0.0489
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       85
_diffrn_reflns_limit_l_min       -74
_diffrn_reflns_number            31392
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.44
_exptl_absorpt_coefficient_mu    9.520
_exptl_absorpt_correction_T_max  0.4671
_exptl_absorpt_correction_T_min  0.1041
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    2.380
_exptl_crystal_description       hexagonal
_exptl_crystal_F_000             13200
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.08
_refine_diff_density_max         1.708
_refine_diff_density_min         -1.458
_refine_diff_density_rms         0.270
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.091
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     233
_refine_ls_number_reflns         3827
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.091
_refine_ls_R_factor_all          0.0685
_refine_ls_R_factor_gt           0.0518
_refine_ls_shift/su_max          0.007
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1092P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1505
_refine_ls_wR_factor_ref         0.1620
_reflns_number_gt                2947
_reflns_number_total             3827
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja904089t_si_002_5.cif
_cod_data_source_block           3b
_cod_original_cell_volume        19491.8(8)
_cod_original_sg_symbol_H-M      'R -3 c'
_cod_database_code               4104843