An efficient and recyclable dendritic catalyst able to dramatically decrease palladium leaching in Suzuki couplings
Keller, Michel; Hameau, Aurélien; Spataro, Grégory; Ladeira, Sonia; Caminade, Anne-Marie; Majoral, Jean-Pierre; Ouali, Armelle; Green Chemistry 14 (2012) 2807–; doi:10.1039/c2gc35832h

data_7215080
_publ_section_title
;
 An efficient and recyclable dendritic catalyst able to dramatically
 decrease palladium leaching in Suzuki couplings
;
_journal_issue                   10
_journal_name_full               'Green Chemistry'
_journal_page_first              2807
_journal_paper_doi               10.1039/c2gc35832h
_journal_volume                  14
_journal_year                    2012
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C21 H23 N2 O2 P S'
_chemical_formula_sum            'C21 H23 N2 O2 P S'
_chemical_formula_weight         398.44
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_Int_Tables_number      2
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                94.396(5)
_cell_angle_beta                 106.808(5)
_cell_angle_gamma                109.396(5)
_cell_formula_units_Z            2
_cell_length_a                   8.7642(9)
_cell_length_b                   10.8437(11)
_cell_length_c                   12.1558(12)
_cell_measurement_reflns_used    9892
_cell_measurement_temperature    180
_cell_measurement_theta_max      25.35
_cell_measurement_theta_min      2.27
_cell_measurement_wavelength     0.71073
_cell_volume                     1023.87(19)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SIR92 (Giacovazzo et al, 1993)'
_diffrn_ambient_temperature      180
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker Kappa APEX II'
_diffrn_measurement_method       \w-\f
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0186
_diffrn_reflns_av_unetI/netI     0.0122
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            20382
_diffrn_reflns_theta_full        25.35
_diffrn_reflns_theta_max         25.35
_diffrn_reflns_theta_min         2.03
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.254
_exptl_absorpt_correction_T_max  0.979
_exptl_absorpt_correction_T_min  0.913
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
[c.f. r.h. blessing, acta cryst. (1995), a51, 33-38]
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.292
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             420
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.3
_exptl_crystal_size_min          0.125
_refine_diff_density_max         0.714
_refine_diff_density_min         -0.304
_refine_diff_density_rms         0.042
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.048
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     247
_refine_ls_number_reflns         3739
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.048
_refine_ls_R_factor_all          0.0346
_refine_ls_R_factor_gt           0.0324
_refine_ls_shift/su_max          0.007
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0358P)^2^+0.6584P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0819
_refine_ls_wR_factor_ref         0.0837
_reflns_number_gt                3487
_reflns_number_total             3739
_reflns_threshold_expression     >2/sigma(I)
_cod_data_source_file            c2gc35832h.txt
_cod_data_source_block           3
_cod_database_code               7215080