Mercury Complexes of N-Heterocyclic Carbenes Derived from Imidazolium-Linked Cyclophanes: Synthesis, Structure, and Reactivity
Baker, Murray V.; Brown, David H.; Haque, Rosenani A.; Simpson, Peter V.; Skelton, Brian W.; White, Allan H.; Williams, Charlotte C.; Organometallics 28 (2009) 3793–; doi:10.1021/om8011745

data_4068946
_publ_section_title
;
 Mercury Complexes of N-Heterocyclic Carbenes Derived from
 Imidazolium-Linked Cyclophanes: Synthesis, Structure, and Reactivity
;
_journal_issue                   13
_journal_name_full               Organometallics
_journal_page_first              3793
_journal_paper_doi               10.1021/om8011745
_journal_volume                  28
_journal_year                    2009
_chemical_formula_moiety         'C22 H20 Hg N4, 2(F6 P)'
_chemical_formula_sum            'C22 H20 F12 Hg N4 P2'
_chemical_formula_weight         830.95
_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_date             2008-10-15T14:28:32-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                62.078(4)
_cell_angle_beta                 64.551(4)
_cell_angle_gamma                72.364(4)
_cell_formula_units_Z            1
_cell_length_a                   8.451(2)
_cell_length_b                   9.533(2)
_cell_length_c                   9.622(2)
_cell_measurement_reflns_used    6586
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      37.42
_cell_measurement_theta_min      2.5
_cell_volume                     613.4(2)
_computing_cell_refinement       'Siemens SAINT (Siemens, 1995)'
_computing_data_collection       'Siemens SMART (Siemens, 1995)'
_computing_data_reduction        'xtal ADDREF SORTRF'
_computing_molecular_graphics    xtal
_computing_publication_material  WinGX
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    xtal
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.985
_diffrn_measured_fraction_theta_max 0.984
_diffrn_measurement_device_type
;
Bruker SMART CCD diffractometer
;
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.094
_diffrn_reflns_av_unetI/netI     0.1879
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            11997
_diffrn_reflns_theta_full        32
_diffrn_reflns_theta_max         32.5
_diffrn_reflns_theta_min         2.44
_exptl_absorpt_coefficient_mu    6.518
_exptl_absorpt_correction_T_max  .77
_exptl_absorpt_correction_T_min  .22
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
 SADABS; Sheldrick, 1996
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    2.249
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             398
_exptl_crystal_size_max          .16
_exptl_crystal_size_mid          .11
_exptl_crystal_size_min          .04
_refine_diff_density_max         4.955
_refine_diff_density_min         -4.316
_refine_diff_density_rms         0.362
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.97
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     187
_refine_ls_number_reflns         4375
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.97
_refine_ls_R_factor_all          0.0749
_refine_ls_R_factor_gt           0.0688
_refine_ls_shift/su_max          0
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1259P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1867
_refine_ls_wR_factor_ref         0.2031
_reflns_number_gt                4064
_reflns_number_total             4375
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            om8011745_si_001.cif
_cod_data_source_block           rh318
_cod_original_sg_symbol_Hall     -p_1
_cod_original_sg_symbol_H-M      P_-1
_cod_database_code               4068946