Axial Ligand Exchange of N-heterocyclic Cobalt(III) Schiff Base Complexes: Molecular Structure and NMR Solution Dynamics
Lisa M. Manus; Robert J. Holbrook; Tulay A. Atesin; Marie C. Heffern; Allison S. Harney; Amanda L. Eckermann; Thomas J. Meade; Inorganic Chemistry 52 (2013) 1069–1076; doi:10.1021/ic302379j

data_4333638
_publ_contact_author_email       tmeade@northwestern.edu
_publ_contact_author_name        'Thomas J. Meade'
_publ_section_title
;
 Axial Ligand Exchange of N-heterocyclic Cobalt(III) Schiff Base
 Complexes: Molecular Structure and NMR Solution Dynamics
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              1069
_journal_page_last               1076
_journal_paper_doi               10.1021/ic302379j
_journal_volume                  52
_journal_year                    2013
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C12 H24 Co N4 O2, C24 H20 B'
_chemical_formula_sum            'C36 H44 B Co N4 O2'
_chemical_formula_weight         634.49
_chemical_name_systematic
;
 trans-bis(ammine)-(N,N'-ethylene-bis(acetylacetoniminato))
-cobalt(iii) tetraphenylborate  
;
_space_group_crystal_system      monoclinic
_space_group_IT_number           9
_space_group_name_Hall           'C -2yc'
_space_group_name_H-M_alt        'C 1 c 1'
_symmetry_space_group_name_Hall  'C -2yc'
_symmetry_space_group_name_H-M   'C 1 c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             2012-06-05
_audit_creation_method
;
  Olex2 1.2
  (compiled May  9 2012 12:37:22, GUI svn.r4230)
;
_cell_angle_alpha                90.00
_cell_angle_beta                 93.308(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.4323(5)
_cell_length_b                   17.3432(7)
_cell_length_c                   15.4529(6)
_cell_measurement_reflns_used    9718
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      29.10
_cell_measurement_theta_min      2.35
_cell_volume                     3326.3(2)
_computing_molecular_graphics
;
O. V. Dolomanov, L. J. Bourhis, R. J. Gildea, J. A. K. Howard and H. Puschmann,
OLEX2: a complete structure solution, refinement and analysis program.
J. Appl. Cryst. (2009). 42, 339-341.
;
_computing_publication_material
;
O. V. Dolomanov, L. J. Bourhis, R. J. Gildea, J. A. K. Howard and H. Puschmann,
OLEX2: a complete structure solution, refinement and analysis program.
J. Appl. Cryst. (2009). 42, 339-341.
;
_computing_structure_refinement
;
XL, G.M. Sheldrick, Acta Cryst.
(2008). A64, 112-122
;
_computing_structure_solution
;
XS, G.M. Sheldrick, Acta Cryst.
(2008). A64, 112-122
;
_diffrn_ambient_temperature      99.97
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0513
_diffrn_reflns_av_unetI/netI     0.0584
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            27717
_diffrn_reflns_theta_full        26.37
_diffrn_reflns_theta_max         26.37
_diffrn_reflns_theta_min         2.02
_diffrn_source                   'fine-focus sealed tube'
_diffrn_source_current           30.0
_diffrn_source_power             1.5
_diffrn_source_voltage           50.0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.553
_exptl_absorpt_correction_T_max  0.7460
_exptl_absorpt_correction_T_min  0.6677
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2008/1 (Bruker,2008) was used for absorption correction.
wR2(int) was 0.0627 before and 0.0541 after correction.
The Ratio of minimum to maximum transmission is 0.8950.
The \l/2 correction factor is 0.0015.
;
_exptl_crystal_colour            orange
_exptl_crystal_colour_primary    orange
_exptl_crystal_density_diffrn    1.267
_exptl_crystal_description       plate
_exptl_crystal_F_000             1344
_exptl_crystal_size_max          0.27
_exptl_crystal_size_mid          0.211
_exptl_crystal_size_min          0.054
_refine_diff_density_max         0.279
_refine_diff_density_min         -0.382
_refine_diff_density_rms         0.056
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.004(15)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.809
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     403
_refine_ls_number_reflns         6248
_refine_ls_number_restraints     128
_refine_ls_restrained_S_all      0.801
_refine_ls_R_factor_all          0.0636
_refine_ls_R_factor_gt           0.0426
_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^)+(0.1000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1107
_refine_ls_wR_factor_ref         0.1250
_reflns_number_gt                4713
_reflns_number_total             6248
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic302379j_si_002_2.cif
_cod_data_source_block           Co(acacen)(NH3)2
_cod_database_code               4333638