Alkali-metal-mediated zincation (AMMZn) meets N-heterocyclic carbene (NHC) chemistry: Zn‒H exchange reactions and structural authentication of a dinuclear Au(i) complex with a NHC anion
Armstrong, David R.; Baillie, Sharon E.; Blair, Victoria L.; Chabloz, Nicolas G.; Diez, Josefina; Garcia-Alvarez, Joaquin; Kennedy, Alan R.; Robertson, Stuart D.; Hevia, Eva; Chemical Science 4 (2013) 4259–; doi:10.1039/c3sc52101j

data_1514740
_publ_section_title
;
 Alkali-metal-mediated zincation (AMMZn) meets N-heterocyclic carbene
 (NHC) chemistry: Zn--H exchange reactions and structural authentication
 of a dinuclear Au(i) complex with a NHC anion
;
_journal_issue                   11
_journal_name_full               'Chemical Science'
_journal_page_first              4259
_journal_paper_doi               10.1039/c3sc52101j
_journal_volume                  4
_journal_year                    2013
_chemical_formula_sum            'C71 H127 N2 Na O7 Zn2'
_chemical_formula_weight         1274.48
_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                 100.694(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.5177(2)
_cell_length_b                   33.2445(6)
_cell_length_c                   18.2146(3)
_cell_measurement_reflns_used    39605
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      29.3651
_cell_measurement_theta_min      3.2620
_cell_volume                     7448.3(2)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'OD Xcalibur, Eos'
_diffrn_measurement_method       'omega 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  0.0636
_diffrn_reflns_av_sigmaI/netI    0.0444
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       43
_diffrn_reflns_limit_k_min       -43
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            106036
_diffrn_reflns_theta_full        27.00
_diffrn_reflns_theta_max         28.00
_diffrn_reflns_theta_min         3.27
_exptl_absorpt_coefficient_mu    0.698
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.88234
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.40 (release 27-08-2010 CrysAlis171 .NET)
(compiled Aug 27 2010,11:50:40)
Empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.137
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2776
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.21
_refine_diff_density_max         0.976
_refine_diff_density_min         -0.603
_refine_diff_density_rms         0.075
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.178
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     822
_refine_ls_number_reflns         17954
_refine_ls_number_restraints     121
_refine_ls_restrained_S_all      1.181
_refine_ls_R_factor_all          0.0979
_refine_ls_R_factor_gt           0.0781
_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^)+(0.0179P)^2^+20.4956P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1498
_refine_ls_wR_factor_ref         0.1585
_reflns_number_gt                14402
_reflns_number_total             17954
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            c3sc52101j.txt
_cod_data_source_block           vb22
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               1514740