Reactions of the Terminal NiII-OH Group in Substitution and Electrophilic Reactions with Carbon Dioxide and Other Substrates: Structural Definition of Binding Modes in an Intramolecular NiII...FeII Bridged Site
Deguang Huang; R. H. Holm; Journal of the American Chemical Society 132 (2010) 4693–4701; doi:10.1021/ja1003125

data_4102206
_publ_section_title
;
 Reactions of the Terminal NiII-OH Group in Substitution and Electrophilic
 Reactions with Carbon Dioxide and Other Substrates: Structural Definition
 of Binding Modes in an Intramolecular NiII...FeII Bridged Site
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              4693
_journal_page_last               4701
_journal_paper_doi               10.1021/ja1003125
_journal_volume                  132
_journal_year                    2010
_chemical_formula_moiety         'C24 H24 N3 Ni O3, C8 H20 N'
_chemical_formula_sum            'C32 H44 N4 Ni O3'
_chemical_formula_weight         591.42
_chemical_name_common            (Et4N)[Ni(PyN2(Me2))OMe]
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method
;
SHELXL-97

The Et4N+ cation in this structure was treated as a two-set disordered
model with occupanies of 0.64 and 0.36, respectively. All the
non-hydrogen atoms were anisotroped and their temperature factors
evened out by using commands DELU & SIMU. Hydrogens were
added geometrically to all the carbon atoms in this model.

Short intermolecular interactions of type Hx...Hy might occur between
hydrogens on Et4N+ and hydrogens on the main structure due to the
highly disordered carbon atoms on Et4N+ cation.

The final refinement of this model gave satisfied result with R = 0.472
and highest peak 0.73.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.532(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.8112(18)
_cell_length_b                   16.671(2)
_cell_length_c                   14.266(2)
_cell_measurement_reflns_used    8603
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.87
_cell_measurement_theta_min      2.44
_cell_volume                     3046.7(7)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_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      100(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.998
_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  0.0322
_diffrn_reflns_av_sigmaI/netI    0.0288
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            29413
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.91
_diffrn_reflns_theta_min         1.88
_exptl_absorpt_coefficient_mu    0.675
_exptl_absorpt_correction_T_max  0.9234
_exptl_absorpt_correction_T_min  0.8180
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.289
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1264
_exptl_crystal_size_max          0.31
_exptl_crystal_size_mid          0.27
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.726
_refine_diff_density_min         -0.741
_refine_diff_density_rms         0.078
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.043
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     434
_refine_ls_number_reflns         7280
_refine_ls_number_restraints     588
_refine_ls_restrained_S_all      1.107
_refine_ls_R_factor_all          0.0564
_refine_ls_R_factor_gt           0.0472
_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^)+(0.0717P)^2^+2.6463P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1237
_refine_ls_wR_factor_ref         0.1320
_reflns_number_gt                6170
_reflns_number_total             7280
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja1003125_si_014.cif
_cod_data_source_block           Compound3
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'none' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_cell_volume        3046.8(8)
_cod_original_sg_symbol_Hall     -P2yn
_cod_database_code               4102206