Ligand-Centered Redox in Nickel(II) Complexes of 2-(Arylazo)pyridine and Isolation of 2-Pyridyl-Substituted Triaryl Hydrazines via Catalytic N-Arylation of Azo-Function.
Sengupta, Debabrata; Ghosh, Pradip; Chatterjee, Tanmay; Datta, Harashit; Paul, Nanda D.; Goswami, Sreebrata; Inorganic chemistry  (2014) 141105122752002–; doi:10.1021/ic501656s

data_4341451
_publ_section_title
;
 Ligand-Centered Redox in Nickel(II) Complexes of 2-(Arylazo)pyridine and
 Isolation of 2-Pyridyl-Substituted Triaryl Hydrazines via Catalytic
 N-Arylation of Azo-Function.
;
_journal_name_full               'Inorganic chemistry'
_journal_page_first              141105122752002
_journal_paper_doi               10.1021/ic501656s
_journal_year                    2014
_chemical_formula_moiety         'C22 H18 N6 Ni'
_chemical_formula_sum            'C22 H18 N6 Ni'
_chemical_formula_weight         425.11
_space_group_crystal_system      orthorhombic
_space_group_IT_number           33
_space_group_name_Hall           'P 2c -2n'
_space_group_name_H-M_alt        'P n a 21'
_symmetry_space_group_name_Hall  'P 2c -2n'
_symmetry_space_group_name_H-M   'P n a 21'
_atom_sites_solution_hydrogens   geom
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_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   32.4726(16)
_cell_length_b                   8.6450(4)
_cell_length_c                   13.5478(7)
_cell_measurement_temperature    150(2)
_cell_volume                     3803.2(3)
_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      150(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0327
_diffrn_reflns_av_unetI/netI     0.0247
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       42
_diffrn_reflns_limit_h_min       -42
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            50725
_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         27.498
_diffrn_reflns_theta_min         1.254
_exptl_absorpt_coefficient_mu    1.042
_exptl_absorpt_correction_T_max  0.901
_exptl_absorpt_correction_T_min  0.791
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            Brown
_exptl_crystal_density_diffrn    1.485
_exptl_crystal_description       Plate
_exptl_crystal_F_000             1760
_exptl_crystal_size_max          0.180
_exptl_crystal_size_mid          0.160
_exptl_crystal_size_min          0.090
_refine_diff_density_max         1.363
_refine_diff_density_min         -0.574
_refine_diff_density_rms         0.065
_refine_ls_abs_structure_details
;
 Refined as an inversion twin.
;
_refine_ls_abs_structure_Flack   0.532(14)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.057
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     524
_refine_ls_number_reflns         8393
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.057
_refine_ls_R_factor_all          0.0378
_refine_ls_R_factor_gt           0.0357
_refine_ls_shift/su_max          0.011
_refine_ls_shift/su_mean         0.002
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0509P)^2^+2.4689P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0893
_refine_ls_wR_factor_ref         0.0905
_reflns_Friedel_coverage         0.918
_reflns_Friedel_fraction_full    1.000
_reflns_Friedel_fraction_max     1.000
_reflns_number_gt                8028
_reflns_number_total             8393
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ic501656s_si_002.cif
_cod_data_source_block           3a
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Empirical' changed to
'empirical' according to
/home/saulius/struct/COD-crude-data--automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2827 2014-09-09 07:05:25Z andrius 
;
_cod_database_code               4341451
_shelx_estimated_absorpt_t_min   0.353
_shelx_estimated_absorpt_t_max   0.560
_shelxl_version_number           2013-4
_shelx_res_checksum              802
_shelx_hkl_checksum              3184