Heteroatomic Deltahedral Clusters: Synthesis and Structures of closo-[Bi3Ni4(CO)6]3-, closo-[Bi4Ni4(CO)6]2-, the Open Cluster [Bi3Ni6(CO)9]3-, and the Intermetalloid closo-[Nix@{Bi6Ni6(CO)8}]4-
Jose M. Goicoechea; Michael W. Hull; Slavi C. Sevov; Journal of the American Chemical Society 129 (2007) 7885–7893; doi:10.1021/ja071044b

data_4109558
_publ_section_title
;
 Heteroatomic Deltahedral Clusters: Synthesis and Structures of
 closo-[Bi3Ni4(CO)6]3-, closo-[Bi4Ni4(CO)6]2-, the Open Cluster
 [Bi3Ni6(CO)9]3-, and the Intermetalloid closo-[Nix@{Bi6Ni6(CO)8}]4-
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              7885
_journal_page_last               7893
_journal_paper_doi               10.1021/ja071044b
_journal_volume                  129
_journal_year                    2007
_chemical_formula_sum            'C69 H124 K3 N8 Ni4 O24 Sb3'
_chemical_formula_weight         2167.15
_chemical_name_systematic
;
 (K-crypt)3[Sb3Ni4(CO)6]*en*tol
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_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                 99.6280(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   21.0938(8)
_cell_length_b                   18.9442(7)
_cell_length_c                   22.6611(8)
_cell_measurement_temperature    100(2)
_cell_volume                     8927.9(6)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_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  0.0739
_diffrn_reflns_av_sigmaI/netI    0.0638
_diffrn_reflns_limit_h_max       25
_diffrn_reflns_limit_h_min       -25
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            74480
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.15
_exptl_absorpt_coefficient_mu    1.931
_exptl_absorpt_correction_T_max  0.6544
_exptl_absorpt_correction_T_min  0.5352
_exptl_crystal_density_diffrn    1.612
_exptl_crystal_F_000             4432
_exptl_crystal_size_max          0.37
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.24
_refine_diff_density_max         1.266
_refine_diff_density_min         -1.151
_refine_diff_density_rms         0.111
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.038
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1101
_refine_ls_number_reflns         15722
_refine_ls_number_restraints     12
_refine_ls_restrained_S_all      1.040
_refine_ls_R_factor_all          0.1128
_refine_ls_R_factor_gt           0.0646
_refine_ls_shift/su_max          0.012
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1007P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1667
_refine_ls_wR_factor_ref         0.1927
_reflns_number_gt                9168
_reflns_number_total             15722
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja071044bsi20070213_043014_2.cif
_cod_data_source_block           1b
_cod_database_code               4109558