A series of tetrabromocatecholate chelated cobalt(iii) complexes with various N-donor ancillary ligands: syntheses, crystal structures, co-crystallization, thermally induced valence tautomerism and electrochemical studies
Panja, Anangamohan; RSC Advances 3 (2013) 4954–; doi:10.1039/c3ra22897e

data_7238910
_publ_section_title
;
 A series of tetrabromocatecholate chelated cobalt(iii) complexes with
 various N-donor ancillary ligands: syntheses, crystal structures,
 co-crystallization, thermally induced valence tautomerism and
 electrochemical studies
;
_journal_issue                   15
_journal_name_full               'RSC Advances'
_journal_page_first              4954
_journal_paper_doi               10.1039/c3ra22897e
_journal_volume                  3
_journal_year                    2013
_chemical_formula_sum            'C18 H16 Br4 Cl Co N4 O6'
_chemical_formula_weight         798.37
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_symmetry_cell_setting           monoclinic
_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                 104.774(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   6.546(2)
_cell_length_b                   31.167(11)
_cell_length_c                   11.809(3)
_cell_measurement_reflns_used    8545
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      1.0
_cell_volume                     2329.6(12)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'KappaCCD Server Software (Nonius, 1997)'
_computing_data_reduction
'HKL Denzo and Scalepack (Otwinowski & Minor 1997)'
_computing_molecular_graphics    'ORTEP-3 (Farrugia, 1997) and Mercury (CCDC)'
_computing_publication_material  'shelxl-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'Shelxs-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.983
_diffrn_measured_fraction_theta_max 0.983
_diffrn_measurement_device       '95mm CCD camera on \k-goniostat'
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       CCD
_diffrn_radiation_monochromator  'horizonally mounted graphite crystal'
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0243
_diffrn_reflns_av_sigmaI/netI    0.0342
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       40
_diffrn_reflns_limit_k_min       -40
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            5192
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         2.21
_exptl_absorpt_coefficient_mu    7.757
_exptl_absorpt_correction_T_max  0.6532
_exptl_absorpt_correction_T_min  0.3060
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   scalepack
_exptl_crystal_colour            greenish-red
_exptl_crystal_density_diffrn    2.276
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1536
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.06
_refine_diff_density_max         1.743
_refine_diff_density_min         -2.207
_refine_diff_density_rms         0.259
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.119
_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_parameters     173
_refine_ls_number_reflns         2640
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.119
_refine_ls_R_factor_all          0.0653
_refine_ls_R_factor_gt           0.0548
_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^)+(0.1130P)^2^+0.7815P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1402
_refine_ls_wR_factor_ref         0.1605
_reflns_number_gt                2231
_reflns_number_total             2640
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3ra22897e.txt
_cod_data_source_block           Complex4
_cod_original_cell_volume        2330(2)
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               7238910