Cluster Core Isomerism Induced by Crystal Packing Effects in the [HCo<sub>15</sub>Pd<sub>9</sub>C<sub>3</sub>(CO)<sub>38</sub>]<sup>2-</sup> Molecular Nanocluster.
Berti, Beatrice; Ciabatti, Iacopo; Femoni, Cristina; Iapalucci, Maria Carmela; Zacchini, Stefano; ACS omega 3 (2018) 13239–13250; doi:10.1021/acsomega.8b02109

data_4515891
_publ_section_title
;
 Cluster Core Isomerism Induced by Crystal Packing Effects in the
 [HCo<sub>15</sub>Pd<sub>9</sub>C<sub>3</sub>(CO)<sub>38</sub>]<sup>2-</sup>
 Molecular Nanocluster.
;
_journal_issue                   10
_journal_name_full               'ACS omega'
_journal_page_first              13239
_journal_page_last               13250
_journal_paper_doi               10.1021/acsomega.8b02109
_journal_volume                  3
_journal_year                    2018
_chemical_formula_sum            'C79 H36 Co15 O38 P2 Pd9'
_chemical_formula_weight         3496.57
_space_group_crystal_system      trigonal
_space_group_IT_number           146
_space_group_name_Hall           'R 3'
_space_group_name_H-M_alt        'R 3 :H'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            3
_cell_length_a                   18.9827(5)
_cell_length_b                   18.9827(5)
_cell_length_c                   22.7666(14)
_cell_measurement_reflns_used    9947
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      28.375
_cell_measurement_theta_min      2.176
_cell_volume                     7104.7(5)
_computing_cell_refinement       'APEX2 (Bruker AXS, 2006)'
_computing_data_collection       'APEX2 (Bruker AXS, 2006)'
_computing_data_reduction        'SAINT (Bruker AXS, 2004)'
_computing_molecular_graphics    'SCHAKAL99 (Keller, 1999)'
_computing_publication_material  'XCIF (Bruker AXS, 2001)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXL-2014/7 (Sheldrick, 2014)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_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  0.0866
_diffrn_reflns_av_unetI/netI     0.0610
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -23
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            33436
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.680
_diffrn_reflns_theta_min         1.528
_exptl_absorpt_coefficient_mu    4.323
_exptl_absorpt_correction_T_max  0.7457
_exptl_absorpt_correction_T_min  0.2824
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details
;
 Data were corrected for Lorentz polarization and absorption
 effects (empirical absorption corrections SADABS).
 R(int) = 0.1724 (selected reflections only, before parameter refinement)
 R(int) = 0.0926 (selected reflections only, after parameter refinement)
;
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    2.452
_exptl_crystal_description       prism
_exptl_crystal_F_000             4989
_exptl_crystal_size_max          0.240
_exptl_crystal_size_mid          0.180
_exptl_crystal_size_min          0.140
_refine_diff_density_max         1.732
_refine_diff_density_min         -1.061
_refine_diff_density_rms         0.142
_refine_ls_abs_structure_details
;
 Refined as an inversion twin.
;
_refine_ls_abs_structure_Flack   0.68(4)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.034
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     431
_refine_ls_number_reflns         6008
_refine_ls_number_restraints     218
_refine_ls_restrained_S_all      1.038
_refine_ls_R_factor_all          0.0497
_refine_ls_R_factor_gt           0.0387
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0390P)^2^+32.4285P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0935
_refine_ls_wR_factor_ref         0.1017
_reflns_Friedel_coverage         1.000
_reflns_Friedel_fraction_full    1.000
_reflns_Friedel_fraction_max     1.000
_reflns_number_gt                5191
_reflns_number_total             6008
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ao8b02109_si_001.cif
_cod_data_source_block           8
_cod_original_cell_volume        7104.7(6)
_cod_database_code               4515891
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.423
_shelx_estimated_absorpt_t_max   0.583
_shelx_res_checksum              71460
_shelx_hkl_checksum              61490