Hydrogen evolution by cobalt tetraimine catalysts adsorbed on electrode surfaces.
Berben, Louise A; Peters, Jonas C; Chemical communications (Cambridge, England) 46 (2010) 398–400; doi:10.1039/b921559j

data_7105161
_publ_section_title
;
 Hydrogen evolution by cobalt tetraimine catalysts adsorbed on
 electrode surfaces.
;
_journal_issue                   3
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              398
_journal_page_last               400
_journal_paper_doi               10.1039/b921559j
_journal_volume                  46
_journal_year                    2010
_chemical_formula_moiety         'C20 H22 B Br2 Co F2 N4 O2'
_chemical_formula_sum            'C20 H22 B Br2 Co F2 N4 O2'
_chemical_formula_weight         617.98
_chemical_name_systematic
;
?
;
_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                   12.2153(8)
_cell_length_b                   13.1102(8)
_cell_length_c                   28.6077(18)
_cell_measurement_temperature    100(2)
_cell_volume                     4581.4(5)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  APEX2
_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  0.1098
_diffrn_reflns_av_sigmaI/netI    0.0425
_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       37
_diffrn_reflns_limit_l_min       -37
_diffrn_reflns_number            85831
_diffrn_reflns_theta_full        27.72
_diffrn_reflns_theta_max         27.72
_diffrn_reflns_theta_min         1.42
_exptl_absorpt_coefficient_mu    4.279
_exptl_absorpt_correction_T_max  0.5662
_exptl_absorpt_correction_T_min  0.4143
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Blessing, Acta. Cryst.'
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    1.792
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2448
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.881
_refine_diff_density_min         -0.704
_refine_diff_density_rms         0.108
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.021
_refine_ls_hydrogen_treatment    none
_refine_ls_matrix_type           full
_refine_ls_number_parameters     293
_refine_ls_number_reflns         5361
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.021
_refine_ls_R_factor_all          0.0501
_refine_ls_R_factor_gt           0.0350
_refine_ls_shift/su_max          0.010
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0416P)^2^+3.2325P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0803
_refine_ls_wR_factor_ref         0.0872
_reflns_number_gt                4251
_reflns_number_total             5361
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b921559j.txt
_cod_data_source_block           08113
_cod_original_sg_symbol_H-M      Pbca
_cod_database_code               7105161