Stabilization of a cobalt-cobalt bond by two cyclic alkyl amino carbenes.
Mondal, Kartik Chandra; Samuel, Prinson P.; Roesky, Herbert W.; Carl, Elena; Herbst-Irmer, Regine; Stalke, Dietmar; Schwederski, Brigitte; Kaim, Wolfgang; Ungur, Liviu; Chibotaru, Liviu F.; Hermann, Markus; Frenking, Gernot; Journal of the American Chemical Society 136 (2014) 1770–1773; doi:10.1021/ja4123285

data_4120566
_publ_section_title
;
 Stabilization of a cobalt-cobalt bond by two cyclic alkyl amino carbenes.
;
_journal_issue                   5
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              1770
_journal_page_last               1773
_journal_paper_doi               10.1021/ja4123285
_journal_volume                  136
_journal_year                    2014
_chemical_formula_moiety         'C20 H32 N, C4 H8 Cl3 Co O'
_chemical_formula_sum            'C24 H40 Cl3 Co N O'
_chemical_formula_weight         523.85
_chemical_name_systematic
;
 ?
;
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2013
_cell_angle_alpha                90.11(2)
_cell_angle_beta                 99.65(2)
_cell_angle_gamma                108.68(2)
_cell_formula_units_Z            4
_cell_length_a                   12.8180(10)
_cell_length_b                   14.3010(10)
_cell_length_c                   15.8490(10)
_cell_measurement_reflns_used    9048
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      25.6205
_cell_measurement_theta_min      2.6115
_cell_volume                     2708.5(5)
_computing_cell_refinement       'SAINT V8.30C'
_computing_data_collection       'APEX2 v2012.2'
_computing_data_reduction        'SAINT V8.30C'
_computing_molecular_graphics    'XP Version 5.1'
_computing_structure_refinement  'SHELXL-2013 (Sheldrick, 2013)'
_computing_structure_solution    'SHELXS-2012 (Sheldrick, 2012)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker Smart APEX II Quazar'
_diffrn_measurement_method       'omega scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0391
_diffrn_reflns_av_unetI/netI     0.0249
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            61259
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.684
_diffrn_reflns_theta_min         1.306
_diffrn_source                   'INCOATEC Mo Microsource'
_exptl_absorpt_coefficient_mu    0.945
_exptl_absorpt_correction_T_max  0.7453
_exptl_absorpt_correction_T_min  0.6798
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS-2012/1
_exptl_crystal_colour            blue
_exptl_crystal_density_diffrn    1.285
_exptl_crystal_description       block
_exptl_crystal_F_000             1108
_exptl_crystal_size_max          0.1
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.500
_refine_diff_density_min         -0.315
_refine_diff_density_rms         0.051
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.047
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     557
_refine_ls_number_reflns         10296
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.047
_refine_ls_R_factor_all          0.0350
_refine_ls_R_factor_gt           0.0282
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0284P)^2^+1.7599P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0668
_refine_ls_wR_factor_ref         0.0713
_reflns_Friedel_coverage         0.000
_reflns_number_gt                8902
_reflns_number_total             10296
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja4123285_si_003.cif
_cod_data_source_block           p-1_a
_cod_database_code               4120566
_shelxl_version_number           2013-4
_shelx_res_checksum              22600
_shelx_hkl_checksum              16403