Heteroleptic Bis(N-heterocyclic carbene)Copper(I) Complexes: Highly Efficient Systems for the [3+2] Cycloaddition of Azides and Alkynes
Lazreg, Faïma; Slawin, Alexandra M. Z.; Cazin, Catherine S. J.; Organometallics 31 (2012) 7969–; doi:10.1021/om3006195

data_4079257
_publ_section_title
;
 Heteroleptic Bis(N-heterocyclic carbene)Copper(I) Complexes: Highly
 Efficient Systems for the [3+2] Cycloaddition of Azides and Alkynes
;
_journal_issue                   22
_journal_name_full               Organometallics
_journal_page_first              7969
_journal_paper_doi               10.1021/om3006195
_journal_volume                  31
_journal_year                    2012
_chemical_formula_moiety         'C48 H60 B Cu F4 N4,2(C4 H8 O)'
_chemical_formula_sum            'C56 H76 B Cu F4 N4 O2'
_chemical_formula_weight         987.56
_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                 101.106(8)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   20.922(7)
_cell_length_b                   15.856(4)
_cell_length_c                   16.935(6)
_cell_measurement_reflns_used    7384
_cell_measurement_temperature    93(2)
_cell_measurement_theta_max      28.6
_cell_measurement_theta_min      2.5
_cell_volume                     5513(3)
_computing_cell_refinement       'CrystalClear (Rigaku Corp., 2004)'
_computing_data_collection       'CrystalClear (Rigaku Corp., 2004)'
_computing_data_reduction        'CrystalClear (Rigaku Corp., 2004)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      93(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  CCD
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  confocal
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0665
_diffrn_reflns_av_sigmaI/netI    0.0932
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -25
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            17205
_diffrn_reflns_theta_full        25.28
_diffrn_reflns_theta_max         25.28
_diffrn_reflns_theta_min         2.45
_exptl_absorpt_coefficient_mu    0.452
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.507
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Jacobson, R. (1998) Private communication'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.190
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prism
_exptl_crystal_F_000             2104
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.551
_refine_diff_density_min         -0.442
_refine_diff_density_rms         0.066
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.807
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     309
_refine_ls_number_reflns         4994
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.807
_refine_ls_R_factor_all          0.0945
_refine_ls_R_factor_gt           0.0621
_refine_ls_shift/su_max          0.006
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1542P)^2^+5.7613P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1766
_refine_ls_wR_factor_ref         0.2125
_reflns_number_gt                3424
_reflns_number_total             4994
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om3006195_si_002.cif
_cod_data_source_block           3b
_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 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               4079257