Synthesis and characterization of trinuclear N-heterocyclic carbene-palladium(II) complexes and their applications in the Suzuki-Miyaura cross-coupling reaction
Wang, Tao; Liu, Lantao; Xu, Kai; Xie, Huanping; Shen, Hui; Zhao, Wen-Xian; RSC Adv.  (2016) –; doi:10.1039/C6RA20852E

data_7226725
_publ_section_title
;
 Synthesis and characterization of trinuclear N-heterocyclic
 carbene-palladium(II) complexes and their applications in the
 Suzuki-Miyaura cross-coupling reaction
;
_journal_name_full               'RSC Adv.'
_journal_paper_doi               10.1039/C6RA20852E
_journal_year                    2016
_chemical_formula_sum            'C42 H54 Cl2 N3.33 O3 Pd'
_chemical_formula_weight         830.85
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           147
_symmetry_cell_setting           trigonal
_symmetry_space_group_name_Hall  '-P 3'
_symmetry_space_group_name_H-M   'P -3'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2016-09-27 deposited with the CCDC.
2016-10-05 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                120.00
_cell_formula_units_Z            6
_cell_length_a                   24.2823(9)
_cell_length_b                   24.2823(9)
_cell_length_c                   13.0875(6)
_cell_measurement_reflns_used    9873
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.54
_cell_measurement_theta_min      3.00
_cell_volume                     6682.9(5)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_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      173(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w 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  0.0683
_diffrn_reflns_av_sigmaI/netI    0.0283
_diffrn_reflns_limit_h_max       28
_diffrn_reflns_limit_h_min       -28
_diffrn_reflns_limit_k_max       28
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            103079
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         3.00
_exptl_absorpt_coefficient_mu    0.574
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.2000
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick,1996)'
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.239
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2600
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.21
_exptl_crystal_size_min          0.11
_platon_squeeze_details
;
;
_refine_diff_density_max         0.985
_refine_diff_density_min         -0.890
_refine_diff_density_rms         0.151
_refine_ls_extinction_coef       0.0052(6)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.052
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     433
_refine_ls_number_reflns         7840
_refine_ls_number_restraints     5
_refine_ls_restrained_S_all      1.052
_refine_ls_R_factor_all          0.1020
_refine_ls_R_factor_gt           0.0921
_refine_ls_shift/su_max          0.022
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1124P)^2^+57.1108P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2307
_refine_ls_wR_factor_ref         0.2406
_reflns_number_gt                6970
_reflns_number_total             7840
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c6ra20852e2.cif
_cod_data_source_block           p
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Trigonal' changed to 'trigonal'
according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 4268 2015-11-12 08:31:59Z antanas 
;
_cod_original_sg_symbol_H-M      P-3
_cod_database_code               7226725