Nickel poly-acetylide carbonyl clusters: structural features, bonding and electrochemical behaviour.
Femoni, Cristina; Iapalucci, Maria Carmela; Longoni, Giuliano; Zacchini, Stefano; Fedi, Serena; Fabrizi de Biani, Fabrizia; Dalton transactions (Cambridge, England : 2003) 41 (2012) 4649–4663; doi:10.1039/c2dt11806h

data_7018360
_publ_section_title
;
 Nickel poly-acetylide carbonyl clusters: structural features, bonding and
 electrochemical behaviour.
;
_journal_issue                   15
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              4649
_journal_page_last               4663
_journal_paper_doi               10.1039/c2dt11806h
_journal_volume                  41
_journal_year                    2012
_chemical_formula_sum            'C81 H98 N4 Ni25 O35'
_chemical_formula_weight         3155.38
_chemical_name_systematic
;
?
;
_space_group_IT_number           13
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yac'
_symmetry_space_group_name_H-M   'P 1 2/n 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                 91.4890(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   17.2678(8)
_cell_length_b                   14.1381(6)
_cell_length_c                   22.0522(10)
_cell_measurement_reflns_used    9924
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      24.3095
_cell_measurement_theta_min      2.343
_cell_volume                     5381.9(4)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(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  0.0680
_diffrn_reflns_av_sigmaI/netI    0.0539
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            55055
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         1.44
_exptl_absorpt_coefficient_mu    4.328
_exptl_absorpt_correction_T_max  0.6247
_exptl_absorpt_correction_T_min  0.4935
_exptl_absorpt_correction_type   empirical
_exptl_crystal_colour            dark-brown
_exptl_crystal_density_diffrn    1.947
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             3184
_exptl_crystal_size_max          0.19
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.878
_refine_diff_density_min         -0.526
_refine_diff_density_rms         0.102
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.000
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     624
_refine_ls_number_reflns         10574
_refine_ls_number_restraints     114
_refine_ls_restrained_S_all      1.040
_refine_ls_R_factor_all          0.0893
_refine_ls_R_factor_gt           0.0417
_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^)+(0.0421P)^2^+9.5882P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0873
_refine_ls_wR_factor_ref         0.1089
_reflns_number_gt                6456
_reflns_number_total             10574
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2dt11806h.txt
_cod_data_source_block           p2n
_cod_original_sg_symbol_H-M      P2/n
_cod_database_code               7018360