The solution stability of copper(i) and silver(i) complexes with N-heterocyclic carbenes.
Amendola, Valeria; Bergamaschi, Greta; Boiocchi, Massimo; Fabbrizzi, Luigi; Fusco, Nadia; Dalton transactions (Cambridge, England : 2003) 40 (2011) 8367–8376; doi:10.1039/c1dt10894h

data_7016564
_publ_section_title
;
 The solution stability of copper(i) and silver(i) complexes with
 N-heterocyclic carbenes.
;
_journal_issue                   33
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              8367
_journal_page_last               8376
_journal_paper_doi               10.1039/c1dt10894h
_journal_volume                  40
_journal_year                    2011
_chemical_formula_moiety         '2(C45 H43 Cu N6), 4 (CL O4)'
_chemical_formula_sum            'C90 H86 Cl4 Cu2 N12 O16'
_chemical_formula_weight         1860.60
_chemical_name_common
;
(12,14,16,52,54,56-Hexamethyl-1,5(1,3,5)-tribenzena-
3,7,10(1,3)-tri-benzimidazoliabicyclo(3.3.3)undecaphane -32,72-
diylidene)-cooper(i) bis(perchlorate)
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 97.7970(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   15.0018(14)
_cell_length_b                   25.6183(12)
_cell_length_c                   21.9405(12)
_cell_measurement_reflns_used    6836
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      24
_cell_measurement_theta_min      2
_cell_volume                     8354.2(10)
_computing_cell_refinement       'SAINT (Bruker-Axs Inc)'
_computing_data_collection       'SMART (Bruker-Axs Inc)'
_computing_data_reduction        'SAINT (Bruker-Axs Inc)'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR-97 (Altomare et al., 1999)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 8.333
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker-Axs Smart-Apex CCD'
_diffrn_measurement_method       'omega scan'
_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  0.0430
_diffrn_reflns_av_sigmaI/netI    0.0327
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       30
_diffrn_reflns_limit_k_min       -30
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            79425
_diffrn_reflns_theta_full        25.07
_diffrn_reflns_theta_max         25.07
_diffrn_reflns_theta_min         1.23
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    0.714
_exptl_absorpt_correction_T_max  0.980
_exptl_absorpt_correction_T_min  0.762
_exptl_absorpt_process_details   'Sadabs (Sheldrick, 1996)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.479
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             3856
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.18
_refine_diff_density_max         1.288
_refine_diff_density_min         -0.555
_refine_diff_density_rms         0.091
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.025
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           fullcycle
_refine_ls_number_parameters     1136
_refine_ls_number_reflns         14809
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.025
_refine_ls_R_factor_all          0.0989
_refine_ls_R_factor_gt           0.0744
_refine_ls_shift/su_max          0.014
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1562P)^2^+7.0833P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2214
_refine_ls_wR_factor_ref         0.2482
_reflns_number_gt                10539
_reflns_number_total             14809
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            c1dt10894h.txt
_cod_data_source_block           '[CuLH]_ClO4'
_cod_depositor_comments
;
The following automatic conversions were performed:

'_refine_ls_hydrogen_treatment' value 'CONSTR' changed to 'constr'
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_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7016564