A general synthetic route to [Cu(X)(NHC)] (NHC = N-heterocyclic carbene, X = Cl, Br, I) complexes
Orlando Santoro; Alba Collado; Alexandra M. Z. Slawin; Steven P. Nolan; Catherine S. J. Cazin; Chem.Commun. 49 (2013) 10483–; doi:10.1039/c3cc45488f

data_7109989
_publ_section_title
;
 A general synthetic route to [Cu(X)(NHC)] (NHC = N-heterocyclic carbene,
 X = Cl, Br, I) complexes
;
_journal_name_full               Chem.Commun.
_journal_page_first              10483
_journal_paper_doi               10.1039/c3cc45488f
_journal_volume                  49
_journal_year                    2013
_chemical_formula_moiety         'C27 H39 Cl2 Cu N2'
_chemical_formula_sum            'C27 H39 Cl2 Cu N2'
_chemical_formula_weight         526.07
_space_group_IT_number           29
_symmetry_cell_setting           orthorhombic
_symmetry_Int_Tables_number      29
_symmetry_space_group_name_Hall  'P 2c -2ac'
_symmetry_space_group_name_H-M   'P c a 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.0000
_cell_angle_beta                 90.0000
_cell_angle_gamma                90.0000
_cell_formula_units_Z            8
_cell_length_a                   14.746(4)
_cell_length_b                   19.910(4)
_cell_length_c                   19.522(4)
_cell_measurement_reflns_used    15303
_cell_measurement_temperature    93
_cell_measurement_theta_max      25.35
_cell_measurement_theta_min      2.01
_cell_volume                     5732(2)
_computing_cell_refinement       'CrystalClear-SM Expert 2.0 rc13'
_computing_data_collection
'CrystalClear-SM Expert 2.0 rc13 (Rigaku, 2009)'
_computing_data_reduction        'CrystalClear-SM Expert 2.0 rc13'
_computing_molecular_graphics    'CrystalStructure 4.0'
_computing_publication_material  'CrystalStructure 4.0 (Rigaku, 2010)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'DIRDIF99-PATTY (Gould, et al., 1999)'
_diffrn_ambient_temperature      93
_diffrn_detector_area_resol_mean 14.629
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Rigaku Mercury70'
_diffrn_measurement_method       \w
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0537
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            35200
_diffrn_reflns_point_group_measured_fraction_full 0.925
_diffrn_reflns_point_group_measured_fraction_max 0.919
_diffrn_reflns_theta_full        25.000
_diffrn_reflns_theta_max         25.326
_diffrn_reflns_theta_min         2.011
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.964
_exptl_absorpt_correction_T_max  0.926
_exptl_absorpt_correction_T_min  0.800
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'REQAB (Rigaku, 1998)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.219
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             2224.00
_exptl_crystal_size_max          0.200
_exptl_crystal_size_mid          0.200
_exptl_crystal_size_min          0.080
_refine_diff_density_max         0.410
_refine_diff_density_min         -0.380
_refine_ls_abs_structure_details
'Flack, H. D. (1983), Acta Cryst. A39, 876-881.  4216 Friedel Pairs'
_refine_ls_abs_structure_Flack   0.00000
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.726
_refine_ls_hydrogen_treatment    constr
_refine_ls_number_parameters     577
_refine_ls_number_reflns         9616
_refine_ls_number_restraints     1
_refine_ls_R_factor_gt           0.0421
_refine_ls_shift/su_max          0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.1078P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.1400
_reflns_number_gt                6829
_reflns_number_total             9616
_reflns_threshold_expression     F^2^>2.0\s(F^2^)
_cod_data_source_file            c3cc45488f.txt
_cod_data_source_block           3b
_cod_original_cell_volume        5731(2)
_cod_database_code               7109989