Remarkable Stability of Copper(II)‒N-Heterocyclic Carbene Complexes Void of an Anionic Tether
Lake, Benjamin R. M.; Willans, Charlotte E.; Organometallics 33 (2014) 2027–; doi:10.1021/om500178e

data_4082976
_publ_section_title
;
 Remarkable Stability of Copper(II)--N-Heterocyclic Carbene Complexes Void
 of an Anionic Tether
;
_journal_issue                   8
_journal_name_full               Organometallics
_journal_page_first              2027
_journal_paper_doi               10.1021/om500178e
_journal_volume                  33
_journal_year                    2014
_chemical_formula_moiety         'C34 H34 Br2 Cu2 N6'
_chemical_formula_sum            'C34 H34 Br2 Cu2 N6'
_chemical_formula_weight         813.57
_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                 104.0190(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   9.7104(5)
_cell_length_b                   11.0398(6)
_cell_length_c                   15.3078(8)
_cell_measurement_reflns_used    4803
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      30.945
_cell_measurement_theta_min      2.2985
_cell_volume                     1592.13(15)
_computing_cell_refinement
;
APEX 2 software, Bruker Nonius 2004
;
_computing_data_collection
;
APEX 2 software, Bruker Nonius 2004
;
_computing_data_reduction
;
SAINT - Bruker Integration program embedded in
APEX 2 software, Bruker Nonius 2004
;
_computing_molecular_graphics    'ORTEP-III Version 1.08 (Farrugia, 2005)'
_computing_publication_material
;
enCIFer: A program for viewing, editing and visualising CIFs.
F. H. Allen, O. Johnson, G. P. Shields, B. R. Smith, M. Towler,
J. Applied Cryst., 37, 331-334, 2004
;
_computing_structure_refinement
;
SHELXS-97 (Sheldrick, G. M.    Acta Cryst. (2008). A64, 112)
XSeed (L.J.Barbour, J.Supramol. Chem., 2003, 1, 189.)
;
_computing_structure_solution
;
SHELXS-97 (Sheldrick, G. M.    Acta Cryst. (2008). A64, 112)
XSeed (L.J.Barbour, J.Supramol. Chem., 2003, 1, 189.)
;
_diffrn_ambient_temperature      120(2)
_diffrn_detector_area_resol_mean
;
120 microns
;
_diffrn_measured_fraction_theta_full 0.949
_diffrn_measured_fraction_theta_max 0.949
_diffrn_measurement_device_type  'ApexII camera'
_diffrn_measurement_method       'rotation images'
_diffrn_radiation_monochromator
;
Mach3 kappa-type 4-circle goniostat.
;
_diffrn_radiation_source
;
Bruker Nonius FR591 rotating anode generator
;
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0307
_diffrn_reflns_av_sigmaI/netI    0.0385
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            14966
_diffrn_reflns_theta_full        31.64
_diffrn_reflns_theta_max         31.64
_diffrn_reflns_theta_min         2.30
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    3.880
_exptl_absorpt_correction_T_max  0.7729
_exptl_absorpt_correction_T_min  0.3437
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
See Sheldrick, G. M. (2002). SADABS.
 University of Gottingen, Germany. 
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.697
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       fragment
_exptl_crystal_F_000             816
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.07
_refine_diff_density_max         0.503
_refine_diff_density_min         -0.521
_refine_diff_density_rms         0.091
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.046
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     202
_refine_ls_number_reflns         5099
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.046
_refine_ls_R_factor_all          0.0438
_refine_ls_R_factor_gt           0.0285
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0306P)^2^+0.1450P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0630
_refine_ls_wR_factor_ref         0.0672
_reflns_number_gt                4033
_reflns_number_total             5099
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om500178e_si_002.cif
_cod_data_source_block           Complex3f
_cod_depositor_comments
'Adding full bibliography for 4082971--4082988.cif.'
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4082976