Employing Dianionic Macrocyclic Tetracarbenes To Synthesize Neutral Divalent Metal Complexes
Bass, Heather M.; Cramer, S. Alan; McCullough, Alexander S.; Bernstein, Karl J.; Murdock, Christopher R.; Jenkins, David M.; Organometallics 32 (2013) 2160–; doi:10.1021/om400043z

data_4080509
_publ_section_title
;
 Employing Dianionic Macrocyclic Tetracarbenes To Synthesize Neutral
 Divalent Metal Complexes
;
_journal_issue                   7
_journal_name_full               Organometallics
_journal_page_first              2160
_journal_paper_doi               10.1021/om400043z
_journal_volume                  32
_journal_year                    2013
_chemical_formula_sum            'C20 H28 B2 N8 Pd'
_chemical_formula_weight         508.52
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_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                 122.2570(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   16.957(2)
_cell_length_b                   12.5805(15)
_cell_length_c                   12.1662(14)
_cell_measurement_temperature    100(2)
_cell_volume                     2194.8(4)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.945
_diffrn_measurement_device_type  'Bruker Apex II CCD'
_diffrn_measurement_method       '\w scan'
_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  0.0273
_diffrn_reflns_av_sigmaI/netI    0.0229
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            12409
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         28.48
_diffrn_reflns_theta_min         2.15
_exptl_absorpt_coefficient_mu    0.871
_exptl_absorpt_correction_T_max  0.9743
_exptl_absorpt_correction_T_min  0.9578
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.539
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1040
_exptl_crystal_size_max          0.05
_exptl_crystal_size_mid          0.04
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.610
_refine_diff_density_min         -0.727
_refine_diff_density_rms         0.074
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.061
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     143
_refine_ls_number_reflns         2626
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.061
_refine_ls_R_factor_all          0.0330
_refine_ls_R_factor_gt           0.0277
_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^)+(0.0233P)^2^+5.4000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0625
_refine_ls_wR_factor_ref         0.0653
_reflns_number_gt                2353
_reflns_number_total             2626
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om400043z_si_002.cif
_cod_data_source_block           Pd
_cod_original_sg_symbol_H-M      'c 2/c'
_cod_database_code               4080509