Stretch Out or Fold Back? Conformations of Dinuclear Gold(I) N-Heterocyclic Carbene Macrocycles.
Kobialka, Stefanie; Müller-Tautges, Christina; Schmidt, Melanie T. S.; Schnakenburg, Gregor; Hollóczki, Oldamur; Kirchner, Barbara; Engeser, Marianne; Inorganic chemistry 54 (2015) 6100–6111; doi:10.1021/ic502751s

data_4343358
_publ_section_title
;
 Stretch Out or Fold Back? Conformations of Dinuclear Gold(I)
 N-Heterocyclic Carbene Macrocycles.
;
_journal_issue                   13
_journal_name_full               'Inorganic chemistry'
_journal_page_first              6100
_journal_page_last               6111
_journal_paper_doi               10.1021/ic502751s
_journal_volume                  54
_journal_year                    2015
_chemical_formula_moiety         'C30 H48 Au2 N8, 2(F6 P)'
_chemical_formula_sum            'C30 H48 Au2 F12 N8 P2'
_chemical_formula_weight         1204.64
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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                 123.6960(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   20.1425(7)
_cell_length_b                   20.9547(8)
_cell_length_c                   11.5734(4)
_cell_measurement_reflns_used    9906
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      30.48
_cell_measurement_theta_min      2.43
_cell_volume                     4064.2(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 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker X8-KappaApexII'
_diffrn_measurement_method       'fine slicing \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  0.0425
_diffrn_reflns_av_sigmaI/netI    0.0283
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -26
_diffrn_reflns_limit_k_max       27
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            65226
_diffrn_reflns_theta_full        28.00
_diffrn_reflns_theta_max         28.00
_diffrn_reflns_theta_min         3.11
_exptl_absorpt_coefficient_mu    7.379
_exptl_absorpt_correction_T_max  0.5898
_exptl_absorpt_correction_T_min  0.2704
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'Sadabs 2009/2, Bruker AXS, 2009'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.969
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       rod
_exptl_crystal_F_000             2320
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.08
_refine_diff_density_max         1.272
_refine_diff_density_min         -1.143
_refine_diff_density_rms         0.122
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.065
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     247
_refine_ls_number_reflns         4900
_refine_ls_number_restraints     18
_refine_ls_restrained_S_all      1.064
_refine_ls_R_factor_all          0.0262
_refine_ls_R_factor_gt           0.0218
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0300P)^2^+9.5322P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0556
_refine_ls_wR_factor_ref         0.0573
_reflns_number_gt                4444
_reflns_number_total             4900
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic502751s_si_002.cif
_cod_data_source_block           17
_cod_depositor_comments
'Adding full bibliography for 4343349--4343359.cif.'
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               4343358
_shelx_f_squared_multiplier      1.000