From Large 12-Membered Macrometallacycles to Ionic (NHC)2M+Cl- Type Complexes of Gold and Silver by Modulation of the N-Substituent of Amido-Functionalized N-Heterocyclic Carbene (NHC) Ligands
Manoja K. Samantaray; Keliang Pang; Mobin M. Shaikh; Prasenjit Ghosh; Inorganic Chemistry 47 (2008) 4153–4165; doi:10.1021/ic702186g

data_4304645
_publ_section_title
;
From Large 12-Membered Macrometallacycles to Ionic (NHC)2M+Cl- Type
Complexes of Gold and Silver by Modulation of the N-Substituent of
Amido-Functionalized N-Heterocyclic Carbene (NHC) Ligands
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              4153
_journal_page_last               4165
_journal_paper_doi               10.1021/ic702186g
_journal_volume                  47
_journal_year                    2008
_chemical_formula_sum            'C20 H28 Au N3 O'
_chemical_formula_weight         523.42
_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                 98.704(9)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.840(2)
_cell_length_b                   9.1945(18)
_cell_length_c                   21.0125(12)
_cell_measurement_reflns_used    10703
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      32.1400
_cell_measurement_theta_min      2.9855
_cell_volume                     2070.2(6)
_computing_cell_refinement       'CrysAlis RED, Oxford Diffraction Ltd.,'
_computing_data_collection       'CrysAlis CCD, Oxford Diffraction Ltd.,'
_computing_data_reduction        'CrysAlis RED, Oxford Diffraction Ltd.,'
_computing_molecular_graphics    Ortep3
_computing_publication_material  Shelx97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 15.9948
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.996
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enhance (Mo) X-ray Source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0281
_diffrn_reflns_av_sigmaI/netI    0.0353
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            19877
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         29.99
_diffrn_reflns_theta_min         2.99
_exptl_absorpt_coefficient_mu    7.118
_exptl_absorpt_correction_T_max  0.2692
_exptl_absorpt_correction_T_min  0.1896
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.29.9 (release 23-03-2006 CrysAlis171 .NET)
(compiled Mar 23 2006,23:39:28)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.679
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1024
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.31
_exptl_crystal_size_min          0.25
_refine_diff_density_max         2.786
_refine_diff_density_min         -1.516
_refine_diff_density_rms         0.136
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.989
_refine_ls_hydrogen_treatment    RIDING
_refine_ls_matrix_type           full
_refine_ls_number_parameters     232
_refine_ls_number_reflns         6004
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.989
_refine_ls_R_factor_all          0.0421
_refine_ls_R_factor_gt           0.0287
_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^)+(0.0298P)^2^+3.1823P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0618
_refine_ls_wR_factor_ref         0.0640
_reflns_number_gt                4623
_reflns_number_total             6004
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic702186g-file008.cif
_cod_data_source_block           pg057
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_cell_volume        2070.1(6)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4304645