Chromium Complexes of an Isomeric N-Donor Ligand, 2-[(N-Arylamino)phenylazo]pyridine: Amination Reactions, X-ray Structure, and Redox Properties
Kunal K. Kamar; Amrita Saha; Alfonso Castiñeiras; Chen-Hsiung Hung; Sreebrata Goswami; Inorganic Chemistry 41 (2002) 4531–4538; doi:10.1021/ic0201497

data_4318389
_publ_section_title
;
 Chromium Complexes of an Isomeric N-Donor Ligand,
 2-[(N-Arylamino)phenylazo]pyridine: Amination Reactions, X-ray Structure,
 and Redox Properties
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              4531
_journal_page_last               4538
_journal_paper_doi               10.1021/ic0201497
_journal_volume                  41
_journal_year                    2002
_chemical_formula_sum            'C28 H23 Cl2 Cr N7'
_chemical_formula_weight         580.43
_chemical_name_systematic
;
  ?
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 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                 107.729(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   28.666(2)
_cell_length_b                   11.8843(3)
_cell_length_c                   17.5429(10)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    213(2)
_cell_measurement_theta_max      49.801
_cell_measurement_theta_min      30.537
_cell_volume                     5692.6(5)
_computing_cell_refinement       'CAD4-Express Software (Nonius, 1994)'
_computing_data_collection       'CAD4-Express Software (Nonius, 1994)'
_computing_data_reduction        'GENHKL (Kretschmar, 1997)'
_computing_molecular_graphics    'PLATON (Spek, 2000)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      213(2)
_diffrn_measured_fraction_theta_full 0.460
_diffrn_measured_fraction_theta_max 0.460
_diffrn_measurement_device_type  'CAD4 Enraf Nonius'
_diffrn_measurement_method       omega
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0598
_diffrn_reflns_av_sigmaI/netI    0.0968
_diffrn_reflns_limit_h_max       32
_diffrn_reflns_limit_h_min       -33
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -1
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -1
_diffrn_reflns_number            5716
_diffrn_reflns_theta_full        64.98
_diffrn_reflns_theta_max         64.98
_diffrn_reflns_theta_min         5.11
_diffrn_standards_decay_%        none
_diffrn_standards_interval_time  60
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    5.273
_exptl_absorpt_correction_T_max  0.956
_exptl_absorpt_correction_T_min  0.588
_exptl_absorpt_correction_type   psi-scan
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    1.355
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             2384
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.375
_refine_diff_density_min         -0.514
_refine_diff_density_rms         0.072
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.872
_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_parameters     343
_refine_ls_number_reflns         4700
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.872
_refine_ls_R_factor_all          0.1248
_refine_ls_R_factor_gt           0.0613
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.1212P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1546
_refine_ls_wR_factor_ref         0.1858
_reflns_number_gt                2683
_reflns_number_total             4700
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic0201497_2.cif
_cod_data_source_block           '[CrCl2(pap)(HL2a)],(3a)'
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' tag value 'Psi-scans' was replaced
with 'psi-scan' value.

'_symmetry_cell_setting' value 'Monoclinic'
changed to 'monoclinic' 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 

The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.1212P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3' was
changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to
'w=1/[\s^2^(Fo^2^)+(0.1212P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               4318389