Zwitterionic dithiocarboxylates derived from N-heterocyclic carbenes: coordination to gold surfaces.
Siemeling, Ulrich; Memczak, Henry; Bruhn, Clemens; Vogel, Florian; Träger, Frank; Baio, Joe E.; Weidner, Tobias; Dalton transactions (Cambridge, England : 2003) 41 (2012) 2986–2994; doi:10.1039/c2dt11976e

data_7018211
_publ_section_title
;
 Zwitterionic dithiocarboxylates derived from N-heterocyclic carbenes:
 coordination to gold surfaces.
;
_journal_issue                   10
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              2986
_journal_page_last               2994
_journal_paper_doi               10.1039/c2dt11976e
_journal_volume                  41
_journal_year                    2012
_chemical_formula_moiety         'C18 H16 N2 S2'
_chemical_formula_sum            'C18 H16 N2 S2'
_chemical_formula_weight         324.45
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_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                 91.115(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   11.5106(15)
_cell_length_b                   18.013(2)
_cell_length_c                   16.037(2)
_cell_measurement_reflns_used    15946
_cell_measurement_temperature    193(2)
_cell_measurement_theta_max      25.25
_cell_measurement_theta_min      2.10
_cell_volume                     3324.5(7)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      193(2)
_diffrn_detector                 'image plate (34 cm diameter)'
_diffrn_detector_area_resol_mean 6.67
_diffrn_detector_type            STOE
_diffrn_measured_fraction_theta_full 0.981
_diffrn_measured_fraction_theta_max 0.981
_diffrn_measurement_details      ' 180 frames, detector distance = 135 mm'
_diffrn_measurement_device       '2-circle goniometer'
_diffrn_measurement_device_type  'STOE IPDS 2'
_diffrn_measurement_method       'rotation method'
_diffrn_radiation_collimation    '0.5 mm diameter, multiple pinhole'
_diffrn_radiation_monochromator  'plane graphite'
_diffrn_radiation_polarisn_norm  0
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1497
_diffrn_reflns_av_sigmaI/netI    0.1013
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            21202
_diffrn_reflns_theta_full        25.36
_diffrn_reflns_theta_max         25.36
_diffrn_reflns_theta_min         1.70
_diffrn_source
'sealed X-ray tube, 12 x 0.4 mm long-fine focus'
_diffrn_source_current           30
_diffrn_source_power             1.50
_diffrn_source_voltage           50
_diffrn_standards_decay_%        none
_exptl_absorpt_coefficient_mu    0.318
_exptl_absorpt_correction_T_max  0.9659
_exptl_absorpt_correction_T_min  0.8644
_exptl_absorpt_correction_type   integration
_exptl_absorpt_process_details   'X-red ver. 1.31 (Stoe & Cie. 2005)'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.296
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1360
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.34
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.369
_refine_diff_density_min         -0.530
_refine_diff_density_rms         0.075
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.933
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     397
_refine_ls_number_reflns         5974
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.933
_refine_ls_R_factor_all          0.1338
_refine_ls_R_factor_gt           0.0812
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1281P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2047
_refine_ls_wR_factor_ref         0.2333
_reflns_number_gt                3083
_reflns_number_total             5974
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2dt11976e.txt
_cod_data_source_block           i0726
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7018211