Sterically Hindered Carboxylate Ligands Support Water-Bridged Dimetallic Centers That Model Features of Metallohydrolase Active Sites
Dongwhan Lee; Pei-Lin Hung; Bernhard Spingler; Stephen J. Lippard; Inorganic Chemistry 41 (2002) 521–531; doi:10.1021/ic0107431

data_4317495
_publ_section_title
;
 Sterically Hindered Carboxylate Ligands Support Water-Bridged Dimetallic
 Centers That Model Features of Metallohydrolase Active Sites
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              521
_journal_page_last               531
_journal_paper_doi               10.1021/ic0107431
_journal_volume                  41
_journal_year                    2002
_chemical_formula_sum            'C95.5 H81 Cl3 N2 Ni2 O8'
_chemical_formula_weight         1608.39
_chemical_name_common            '[Ni2(m-O2CArTol)4(C5H5N)2]'
_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                88.881(2)
_cell_angle_beta                 81.516(2)
_cell_angle_gamma                75.843(2)
_cell_formula_units_Z            2
_cell_length_a                   14.5501(17)
_cell_length_b                   15.2644(18)
_cell_length_c                   19.321(2)
_cell_measurement_temperature    188(2)
_cell_volume                     4114.7(8)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      188(2)
_diffrn_measured_fraction_theta_full 0.879
_diffrn_measured_fraction_theta_max 0.879
_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  0.0241
_diffrn_reflns_av_sigmaI/netI    0.0656
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            25919
_diffrn_reflns_theta_full        28.30
_diffrn_reflns_theta_max         28.30
_diffrn_reflns_theta_min         1.94
_exptl_absorpt_coefficient_mu    0.613
_exptl_absorpt_correction_T_max  1.000000
_exptl_absorpt_correction_T_min  0.853240
_exptl_absorpt_correction_type   SADABS
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.298
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1678
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.940
_refine_diff_density_min         -0.878
_refine_diff_density_rms         0.072
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.926
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1017
_refine_ls_number_reflns         18017
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.926
_refine_ls_R_factor_all          0.0861
_refine_ls_R_factor_gt           0.0495
_refine_ls_shift/su_max          1.001
_refine_ls_shift/su_mean         0.019
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0948P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1319
_refine_ls_wR_factor_ref         0.1497
_reflns_number_gt                11864
_reflns_number_total             18017
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic0107431_6.cif
_cod_data_source_block           4
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to the built-in table from CIF Core dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 
;
_cod_original_cell_volume        4114.8(8)
_cod_original_formula_sum        'C95.50 H81 Cl3 N2 Ni2 O8'
_cod_database_code               4317495