Synthesis and carbene-transfer reactivity of dimeric nickel carbene cations supported by N-heterocyclic carbene ligands
Laskowski, Carl A.; Hillhouse, Gregory L.; Chemical Science 2 (2011) 321–; doi:10.1039/c0sc00464b

data_1515418
_publ_section_title
;
 Synthesis and carbene-transfer reactivity of dimeric nickel carbene
 cations supported by N-heterocyclic carbene ligands
;
_journal_issue                   2
_journal_name_full               'Chemical Science'
_journal_page_first              321
_journal_paper_doi               10.1039/c0sc00464b
_journal_volume                  2
_journal_year                    2011
_chemical_formula_sum            'C91 H96 B Cl3 F24 N4 Ni2 Si'
_chemical_formula_weight         1964.39
_chemical_name_systematic
;
?
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                69.525(6)
_cell_angle_beta                 73.169(6)
_cell_angle_gamma                82.761(6)
_cell_formula_units_Z            2
_cell_length_a                   13.729(5)
_cell_length_b                   17.963(6)
_cell_length_c                   20.822(7)
_cell_measurement_temperature    100(2)
_cell_volume                     4603(3)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.973
_diffrn_measured_fraction_theta_max 0.973
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_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  0.1402
_diffrn_reflns_av_sigmaI/netI    0.1098
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            23070
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.33
_exptl_absorpt_coefficient_mu    0.604
_exptl_absorpt_correction_T_max  0.6215
_exptl_absorpt_correction_T_min  0.3775
_exptl_absorpt_correction_type   psi-scan
_exptl_absorpt_process_details   'Norton et. al.'
_exptl_crystal_colour            purple
_exptl_crystal_density_diffrn    1.417
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2024
_exptl_crystal_size_max          0.60
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.961
_refine_diff_density_min         -0.624
_refine_diff_density_rms         0.096
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.942
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1158
_refine_ls_number_reflns         15798
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.942
_refine_ls_R_factor_all          0.0765
_refine_ls_R_factor_gt           0.0493
_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^)+(0.0604P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1105
_refine_ls_wR_factor_ref         0.1230
_reflns_number_gt                11202
_reflns_number_total             15798
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c0sc00464b.txt
_cod_data_source_block           7
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to
/usr/data/users/saulius/automatic-downloads/retrospective/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               1515418