A square planar gold(iii) bis-(1,1'-dimethyl-3,3'-methylene-diimidazol-2,2'-diylidene) trication as an efficient and selective receptor towards halogen anions: the cooperative effect of AuX and XHC interactions.
Baron, Marco; Dall'Anese, Anna; Tubaro, Cristina; Orian, Laura; Di Marco, Valerio; Bogialli, Sara; Graiff, Claudia; Basato, Marino; Dalton transactions (Cambridge, England : 2003) 47 (2018) 935–945; doi:10.1039/c7dt03672h

data_7044952
_publ_section_title
;
 A square planar gold(iii)
 bis-(1,1'-dimethyl-3,3'-methylene-diimidazol-2,2'-diylidene) trication as
 an efficient and selective receptor towards halogen anions: the
 cooperative effect of AuX and XHC interactions.
;
_journal_issue                   3
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              935
_journal_page_last               945
_journal_paper_doi               10.1039/c7dt03672h
_journal_volume                  47
_journal_year                    2018
_chemical_formula_sum            'C18 H24 Au Cl I6 N8'
_chemical_formula_weight         1346.27
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2017-11-14 deposited with the CCDC.
2017-11-29 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 108.518(7)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   13.237(6)
_cell_length_b                   21.466(10)
_cell_length_c                   12.233(6)
_cell_measurement_reflns_used    999
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27
_cell_measurement_theta_min      2
_cell_volume                     3296(3)
_computing_cell_refinement       'APEX-II (2008)'
_computing_data_collection       'APEX-II (2008)'
_computing_data_reduction        'SAINT (2008)'
_computing_molecular_graphics    'Mercury CSD 3.5'
_computing_publication_material
'PARST M. Nardelli, J.Appl.Crystallogr.1995,28,659'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.974
_diffrn_measurement_device_type  'Bruker APEX II'
_diffrn_measurement_method       omega-scan
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0990
_diffrn_reflns_av_unetI/netI     0.0777
_diffrn_reflns_Laue_measured_fraction_full 0.996
_diffrn_reflns_Laue_measured_fraction_max 0.974
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       30
_diffrn_reflns_limit_k_min       -30
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            22910
_diffrn_reflns_point_group_measured_fraction_full 0.996
_diffrn_reflns_point_group_measured_fraction_max 0.974
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         30.436
_diffrn_reflns_theta_min         1.879
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    10.186
_exptl_absorpt_correction_T_max  0.7460
_exptl_absorpt_correction_T_min  0.1696
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker APEX II SADABS, 2008'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    2.713
_exptl_crystal_density_meas      ?
_exptl_crystal_description       prism
_exptl_crystal_F_000             2408
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.12
_refine_diff_density_max         5.910
_refine_diff_density_min         -6.883
_refine_diff_density_rms         0.542
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.958
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     160
_refine_ls_number_reflns         4870
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.958
_refine_ls_R_factor_all          0.0964
_refine_ls_R_factor_gt           0.0768
_refine_ls_shift/su_max          0.005
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.1406P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1906
_refine_ls_wR_factor_ref         0.2072
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3518
_reflns_number_total             4870
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c7dt03672h3.cif
_cod_data_source_block           comp_1_Cl
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 4973 2017-02-22 13:04:09Z antanas 

 Adding full bibliography for 7044952--7044954.cif.
;
_cod_database_code               7044952
_shelx_shelxl_version_number     2014/7
_shelx_res_checksum              95152