The co-ordination chemistry of bis(2,2'-bipyrid-6'-yl)ketone with first row transition metals: the reversible interconversion of a mononuclear complex and a dinuclear hemiketal containing species.
Knight, James C.; Amoroso, Angelo J.; Edwards, Peter G.; Prabaharan, Ravi; Singh, Neha; Dalton transactions (Cambridge, England : 2003) 39 (2010) 8925–8936; doi:10.1039/c0dt00344a

data_7026325
_publ_section_title
;
 The co-ordination chemistry of bis(2,2'-bipyrid-6'-yl)ketone with first
 row transition metals: the reversible interconversion of a mononuclear
 complex and a dinuclear hemiketal containing species.
;
_journal_issue                   38
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              8925
_journal_page_last               8936
_journal_paper_doi               10.1039/c0dt00344a
_journal_volume                  39
_journal_year                    2010
_chemical_formula_moiety         'C21 H18 Co N4 O3, 2(Cl O4)'
_chemical_formula_sum            'C21 H18 Cl2 Co N4 O11'
_chemical_formula_weight         632.22
_chemical_name_common            aja0712
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   11.3538(3)
_cell_length_b                   15.1853(5)
_cell_length_c                   29.0604(8)
_cell_measurement_reflns_used    17313
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.485
_cell_measurement_theta_min      2.91
_cell_volume                     5010.3(3)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Nonius BV, 1997-2000)'
_computing_data_reduction
'HKL Denzo and Scalepack (Otwinowski & Minor 1997)'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1986)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       CCD
_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  0.1389
_diffrn_reflns_av_sigmaI/netI    0.1411
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       37
_diffrn_reflns_limit_l_min       -36
_diffrn_reflns_number            20942
_diffrn_reflns_theta_full        27.49
_diffrn_reflns_theta_max         27.49
_diffrn_reflns_theta_min         3.03
_exptl_absorpt_coefficient_mu    0.967
_exptl_absorpt_correction_T_max  0.7668
_exptl_absorpt_correction_T_min  0.7284
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sortav (Blessing, 1995)'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.676
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2568
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.33
_exptl_crystal_size_min          0.29
_refine_diff_density_max         0.753
_refine_diff_density_min         -0.763
_refine_diff_density_rms         0.173
_refine_ls_extinction_coef       0.0024(6)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.014
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     399
_refine_ls_number_reflns         5707
_refine_ls_number_restraints     138
_refine_ls_restrained_S_all      1.040
_refine_ls_R_factor_all          0.1847
_refine_ls_R_factor_gt           0.0738
_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^)+(0.1138P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1820
_refine_ls_wR_factor_ref         0.2308
_reflns_number_gt                2616
_reflns_number_total             5707
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c0dt00344a.txt
_cod_data_source_block           aja0712
_cod_database_code               7026325