Probing the potential of N-heterocyclic carbenes in molecular electronics: redox-active metal centers interlinked by a rigid ditopic carbene ligand
Mercs, Laszlo; Neels, Antonia; Albrecht, Martin; Dalton Transactions  (2008) 5570–5576; doi:10.1039/b809721f

data_7004648
_publ_section_title
;
 Probing the potential of N-heterocyclic carbenes in molecular
 electronics: redox-active metal centers interlinked by a rigid ditopic
 carbene ligand
;
_journal_issue                   41
_journal_name_full               'Dalton Transactions'
_journal_page_first              5570
_journal_page_last               5576
_journal_paper_doi               10.1039/b809721f
_journal_year                    2008
_chemical_formula_sum            'C54 H90 Cl4 N4 Ru2'
_chemical_formula_weight         1139.24
_chemical_name_systematic
;
?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/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                 91.422(5)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   11.6954(7)
_cell_length_b                   7.1268(3)
_cell_length_c                   34.419(2)
_cell_measurement_reflns_used    34484
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      25.68
_cell_measurement_theta_min      1.18
_cell_volume                     2868.0(3)
_computing_cell_refinement       'STOE X-AREA'
_computing_data_collection       'STOE X-AREA'
_computing_data_reduction        'STOE X-RED'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_detector_area_resol_mean 6.67
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'STOE IPDS 2'
_diffrn_measurement_method       'rotation method'
_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  0.1066
_diffrn_reflns_av_sigmaI/netI    0.0569
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       40
_diffrn_reflns_limit_l_min       -41
_diffrn_reflns_number            28304
_diffrn_reflns_theta_full        25.15
_diffrn_reflns_theta_max         25.15
_diffrn_reflns_theta_min         1.18
_exptl_absorpt_coefficient_mu    0.749
_exptl_absorpt_correction_T_max  0.720
_exptl_absorpt_correction_T_min  0.269
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'DELrefABS, (PLATON03, Speck, 2003)'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.319
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1196
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.45
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.625
_refine_diff_density_min         -0.694
_refine_diff_density_rms         0.074
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.114
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     292
_refine_ls_number_reflns         5106
_refine_ls_number_restraints     8
_refine_ls_restrained_S_all      1.115
_refine_ls_R_factor_all          0.0547
_refine_ls_R_factor_gt           0.0497
_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^)+(0.0606P)^2^+2.7489P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1333
_refine_ls_wR_factor_ref         0.1367
_reflns_number_gt                4617
_reflns_number_total             5106
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b809721f.txt
_cod_data_source_block           compound3a
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7004648