High-nuclearity [Pd13Ni13(CO)34]4− containing a 26-atom Pd13Ni13 core with an unprecedented five-layer close-packed triangular stacking geometry: possible substitutional Pd/Ni crystal disorder at specific intralayer nickel sites †
Tran, Nguyet T.; Kawano, Masaki; Powell, Douglas R.; Dahl, Lawrence F.; Journal of the Chemical Society, Dalton Transactions  (2000) 4138–; doi:10.1039/b004595k

data_7009947
_publ_section_title
;
 High-nuclearity [Pd13Ni13(CO)34]4&#x2212; containing a 26-atom
 Pd13Ni13 core with an unprecedented five-layer close-packed triangular
 stacking geometry: possible substitutional Pd/Ni crystal disorder at
 specific intralayer nickel sites&#x200A;&#x2020;
;
_journal_issue                   22
_journal_name_full
'Journal of the Chemical Society, Dalton Transactions'
_journal_page_first              4138
_journal_paper_doi               10.1039/b004595k
_journal_year                    2000
_chemical_formula_moiety
'4[(C6 H5)4 P]+ [Pd13 Ni13 (C O)34]4- 0.5(C2 H3 N)'
_chemical_formula_sum            'C131 H81.5 N0.5 Ni13 O34 P4 Pd13'
_chemical_formula_weight         4476.78
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                82.306(3)
_cell_angle_beta                 87.368(3)
_cell_angle_gamma                70.283(3)
_cell_formula_units_Z            2
_cell_length_a                   17.205(3)
_cell_length_b                   18.061(3)
_cell_length_c                   22.922(4)
_cell_measurement_reflns_used    6348
_cell_measurement_temperature    133(2)
_cell_measurement_theta_max      28.29
_cell_measurement_theta_min      2.56
_cell_volume                     6645(2)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      133(2)
_diffrn_measured_fraction_theta_full 0.983
_diffrn_measured_fraction_theta_max 0.983
_diffrn_measurement_device       'Bruker SMART'
_diffrn_measurement_method       '\w scan frames'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0468
_diffrn_reflns_av_sigmaI/netI    0.0520
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            35088
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.76
_diffrn_standards_decay_%        0.03
_diffrn_standards_number         881
_exptl_absorpt_coefficient_mu    3.624
_exptl_absorpt_correction_T_max  0.546
_exptl_absorpt_correction_T_min  0.368
_exptl_absorpt_correction_type   empirical
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    2.237
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             4330
_exptl_crystal_size_max          0.27
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.04
_refine_diff_density_max         3.407
_refine_diff_density_min         -1.486
_refine_diff_density_rms         0.190
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.040
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           fullcycle
_refine_ls_number_parameters     1774
_refine_ls_number_reflns         23018
_refine_ls_number_restraints     79
_refine_ls_restrained_S_all      1.045
_refine_ls_R_factor_all          0.0681
_refine_ls_R_factor_gt           0.0503
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0786P)^2^+26.2774P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1346
_refine_ls_wR_factor_ref         0.1494
_reflns_number_gt                17604
_reflns_number_total             23018
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b004595k.txt
_cod_data_source_block           n99085
_cod_original_sg_symbol_H-M      P-1
_cod_original_formula_sum        'C131 H81.50 N0.50 Ni13 O34 P4 Pd13'
_cod_database_code               7009947