Bulky triarylarsines are effective ligands for palladium catalysed Heck olefination.
Baber, R. Angharad; Collard, Simon; Hooper, Mark; Orpen, A. Guy; Pringle, Paul G.; Wilkinson, Matthew J.; Wingad, Richard L.; Dalton transactions (Cambridge, England : 2003)  (2005) 1491–1498; doi:10.1039/b417910b

data_7008149
_publ_section_title
;
 Bulky triarylarsines are effective ligands for palladium catalysed
 Heck olefination.
;
_journal_issue                   8
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              1491
_journal_page_last               1498
_journal_paper_doi               10.1039/b417910b
_journal_year                    2005
_chemical_formula_moiety         '[PdCl2(2a)2]'
_chemical_formula_sum            'C42 H42 As2 Cl2 Pd'
_chemical_formula_weight         873.90
_chemical_name_systematic
;
?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 93.093(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   10.6786(18)
_cell_length_b                   10.9964(19)
_cell_length_c                   15.825(3)
_cell_measurement_temperature    173(2)
_cell_volume                     1855.6(6)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_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 0.989
_diffrn_measured_fraction_theta_max 0.989
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'omega scans with narrow frames'
_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  0.0891
_diffrn_reflns_av_sigmaI/netI    0.0773
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            19130
_diffrn_reflns_theta_full        27.59
_diffrn_reflns_theta_max         27.59
_diffrn_reflns_theta_min         2.25
_exptl_absorpt_coefficient_mu    2.443
_exptl_absorpt_correction_T_max  0.862073
_exptl_absorpt_correction_T_min  0.660167
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1998)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.564
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             880
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.651
_refine_diff_density_min         -0.720
_refine_diff_density_rms         0.126
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.041
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     217
_refine_ls_number_reflns         4250
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.041
_refine_ls_R_factor_all          0.0862
_refine_ls_R_factor_gt           0.0470
_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^)+(0.0323P)^2^+1.6081P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0801
_refine_ls_wR_factor_ref         0.0901
_reflns_number_gt                2943
_reflns_number_total             4250
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b417910b.txt
_cod_data_source_block           4a
_cod_original_cell_volume        1855.6(5)
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               7008149