Cyclopropenylidene carbene ligands in palladium catalysed coupling reactions: carbene ligand rotation and application to the Stille reaction.
Chotima, Ratanon; Dale, Tim; Green, Michael; Hey, Thomas W.; McMullin, Claire L.; Nunns, Adam; Guy Orpen, A.; Shishkov, Igor V.; Wass, Duncan F.; Wingad, Richard L.; Dalton transactions (Cambridge, England : 2003) 40 (2011) 5316–5323; doi:10.1039/c1dt10109a

data_7015799
_publ_section_title
;
 Cyclopropenylidene carbene ligands in palladium catalysed coupling
 reactions: carbene ligand rotation and application to the Stille
 reaction.
;
_journal_issue                   19
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              5316
_journal_page_last               5323
_journal_paper_doi               10.1039/c1dt10109a
_journal_volume                  40
_journal_year                    2011
_chemical_formula_moiety         'C19 H17 Cl2 N O2 Pd, H2 O'
_chemical_formula_sum            'C19 H18 Cl2 N O2.5 Pd'
_chemical_formula_weight         477.64
_chemical_name_systematic
;
?
;
_space_group_IT_number           60
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2n 2ab'
_symmetry_space_group_name_H-M   'P b c n'
_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            4
_cell_length_a                   15.7371(8)
_cell_length_b                   16.6448(9)
_cell_length_c                   7.4293(4)
_cell_measurement_reflns_used    11554
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      2.91
_cell_volume                     1946.04(18)
_computing_cell_refinement
;
DENZO (Otwinowski & Minor, 1997) & COLLECT (Hooft, R.W.W., 1998)
Although determined using DirAx, the cell is refined in the HKL
package during data reduction
;
_computing_data_collection       'COLLECT (Hooft, R.W.W., 1998)'
_computing_data_reduction
;
DENZO (Otwinowski & Minor, 1997) & COLLECT (Hooft, R.W.W., 1998)
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      120(2)
_diffrn_detector_area_resol_mean '4096x4096pixels / 62x62mm'
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.989
_diffrn_measurement_device_type
;
Bruker-Nonius APEX II CCD camera on \k-goniostat'
;
_diffrn_measurement_method       '\f & \w scans'
_diffrn_radiation_monochromator  '10cm confocal mirrors'
_diffrn_radiation_source         'Bruker-Nonius FR591 rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0564
_diffrn_reflns_av_sigmaI/netI    0.0525
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            9708
_diffrn_reflns_theta_full        27.55
_diffrn_reflns_theta_max         27.55
_diffrn_reflns_theta_min         3.27
_exptl_absorpt_coefficient_mu    1.243
_exptl_absorpt_correction_T_max  0.975
_exptl_absorpt_correction_T_min  0.859
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS 2007/2 (Sheldrick, G.M., 2007)'
_exptl_crystal_colour            'light yellow'
_exptl_crystal_density_diffrn    1.630
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'cut lath'
_exptl_crystal_F_000             956
_exptl_crystal_size_max          0.12
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.631
_refine_diff_density_min         -0.726
_refine_diff_density_rms         0.127
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.068
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     130
_refine_ls_number_reflns         2228
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.067
_refine_ls_R_factor_all          0.0830
_refine_ls_R_factor_gt           0.0547
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0000P)^2^+13.8820P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0999
_refine_ls_wR_factor_ref         0.1157
_reflns_number_gt                1646
_reflns_number_total             2228
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c1dt10109a.txt
_cod_data_source_block           11.H2O
_cod_original_formula_sum        'C19 H18 Cl2 N O2.50 Pd'
_cod_database_code               7015799