Dinuclear Coinage-Metal Complexes of Bis(NHC) Ligands: Structural Features and Dynamic Behavior of a Cu‒Cu Complex
Gierz, Verena; Seyboldt, Alexander; Maichle-Mössmer, Cäcilia; Törnroos, Karl W.; Speidel, Michael T.; Speiser, Bernd; Eichele, Klaus; Kunz, Doris; Organometallics 31 (2012) 7893–; doi:10.1021/om300544g

data_4079174
_publ_section_title
;
 Dinuclear Coinage-Metal Complexes of Bis(NHC) Ligands: Structural
 Features and Dynamic Behavior of a Cu--Cu Complex
;
_journal_issue                   22
_journal_name_full               Organometallics
_journal_page_first              7893
_journal_paper_doi               10.1021/om300544g
_journal_volume                  31
_journal_year                    2012
_chemical_formula_moiety         'C44 H36 Cu2 N8, 2(F6 P), 2(C H2 Cl2)'
_chemical_formula_sum            'C46 H40 Cl4 Cu2 F12 N8 P2'
_chemical_formula_weight         1263.68
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           43
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'F 2 -2d'
_symmetry_space_group_name_H-M   'F d d 2'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   21.6031(11)
_cell_length_b                   23.3502(11)
_cell_length_c                   19.8750(10)
_cell_measurement_reflns_used    9865
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      28.20
_cell_measurement_theta_min      6.82
_cell_volume                     10025.7(9)
_computing_cell_refinement       SAINT
_computing_data_collection       COSMO
_computing_data_reduction        SAINT
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'APEX II'
_diffrn_measurement_method       'omega/ phi scans'
_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  0.0245
_diffrn_reflns_av_sigmaI/netI    0.0201
_diffrn_reflns_limit_h_max       28
_diffrn_reflns_limit_h_min       -28
_diffrn_reflns_limit_k_max       31
_diffrn_reflns_limit_k_min       -31
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            68250
_diffrn_reflns_theta_full        28.44
_diffrn_reflns_theta_max         28.44
_diffrn_reflns_theta_min         1.64
_exptl_absorpt_coefficient_mu    1.215
_exptl_absorpt_correction_T_max  0.6772
_exptl_absorpt_correction_T_min  0.5836
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS version 2008/1, G.M Sheldrick, University of 
G\"ttingen, Germany, 2008.
;
_exptl_crystal_colour            white
_exptl_crystal_density_diffrn    1.674
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       polyhedron
_exptl_crystal_F_000             5088
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.48
_exptl_crystal_size_min          0.35
_refine_diff_density_max         0.762
_refine_diff_density_min         -0.516
_refine_diff_density_rms         0.053
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.005(9)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.040
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     343
_refine_ls_number_reflns         6206
_refine_ls_number_restraints     7
_refine_ls_restrained_S_all      1.040
_refine_ls_R_factor_all          0.0328
_refine_ls_R_factor_gt           0.0295
_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^)+(0.0326P)^2^+26.6579P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0716
_refine_ls_wR_factor_ref         0.0744
_reflns_number_gt                5878
_reflns_number_total             6206
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            om300544g_si_001.cif
_cod_data_source_block           compound4
_cod_original_sg_symbol_H-M      Fdd2
_cod_database_code               4079174