Ni-Cu tetracarbide carbonyls with vacant Ni(CO) fragments as borderline compounds between molecular and quasi-molecular clusters.
Bernardi, Alessandro; Ciabatti, Iacopo; Femoni, Cristina; Iapalucci, Maria Carmela; Longoni, Giuliano; Zacchini, Stefano; Dalton transactions (Cambridge, England : 2003) 42 (2013) 407–421; doi:10.1039/c2dt31719b

data_7020699
_publ_section_title
;
 Ni-Cu tetracarbide carbonyls with vacant Ni(CO) fragments as borderline
 compounds between molecular and quasi-molecular clusters.
;
_journal_issue                   2
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              407
_journal_page_last               421
_journal_paper_doi               10.1039/c2dt31719b
_journal_volume                  42
_journal_year                    2013
_chemical_formula_sum            'C62 H60 Cu2 N8 Ni30 O34'
_chemical_formula_weight         3349.56
_chemical_name_systematic
;
?
;
_space_group_IT_number           56
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ab 2ac'
_symmetry_space_group_name_H-M   'P c c n'
_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                90.00
_cell_formula_units_Z            4
_cell_length_a                   22.493(3)
_cell_length_b                   18.848(2)
_cell_length_c                   21.768(3)
_cell_measurement_reflns_used    9938
_cell_measurement_temperature    295(2)
_cell_measurement_theta_max      27.4125
_cell_measurement_theta_min      2.343
_cell_volume                     9229(2)
_computing_cell_refinement       'APEX2 (Bruker AXS, 2006)'
_computing_data_collection       'APEX2 (Bruker AXS, 2006)'
_computing_data_reduction        'SAINT (Bruker AXS, 2004)'
_computing_molecular_graphics    'ORTEPIII (johnson, 1996)'
_computing_publication_material  'XCIF (Bruker AXS, 2001)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      295(2)
_diffrn_measured_fraction_theta_full 0.967
_diffrn_measured_fraction_theta_max 0.967
_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  0.2061
_diffrn_reflns_av_sigmaI/netI    0.0992
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            66916
_diffrn_reflns_theta_full        22.99
_diffrn_reflns_theta_max         22.99
_diffrn_reflns_theta_min         1.81
_exptl_absorpt_coefficient_mu    6.479
_exptl_absorpt_correction_T_max  0.5359
_exptl_absorpt_correction_T_min  0.4238
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details
;
Data were corrected for Lorentz polarization and absorption
effects (empirical absorption correction SADABS).
R(int) = 0.1272 (selected reflections only, before parameter refinement)
R(int) = 0.0649 (selected reflections only, after parameter refinement)
;
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    2.411
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             6632
_exptl_crystal_size_max          0.16
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.11
_refine_diff_density_max         1.238
_refine_diff_density_min         -0.869
_refine_diff_density_rms         0.190
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.059
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     581
_refine_ls_number_reflns         6205
_refine_ls_number_restraints     1132
_refine_ls_restrained_S_all      1.024
_refine_ls_R_factor_all          0.1810
_refine_ls_R_factor_gt           0.0704
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0919P)^2^+193.2445P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1611
_refine_ls_wR_factor_ref         0.2407
_reflns_number_gt                2943
_reflns_number_total             6205
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2dt31719b.txt
_cod_data_source_block           ni30cutma4_pccn
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      Pccn
_cod_database_code               7020699