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_7015796
_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         'C15 H10 Cl2'
_chemical_formula_sum            'C15 H10 Cl2'
_chemical_formula_weight         261.13
_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                 105.465(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.3776(13)
_cell_length_b                   7.8923(7)
_cell_length_c                   11.2349(10)
_cell_measurement_reflns_used    4952
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.6
_cell_measurement_theta_min      2.94
_cell_volume                     1228.69(19)
_computing_cell_refinement       'SMART v5.054 (Bruker-AXS, 1997-1998)'
_computing_data_collection       'SMART v5.054 (Bruker-AXS, 1997-1998)'
_computing_data_reduction
;
SAINT v7.06A (Bruker-AXS, 1997-2003) & SHELXTL v6.14 (Bruker-AXS, 2003)
;
_diffrn_ambient_temperature      173
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 8.192
_diffrn_detector_type            'Bruker-AXS SMART 1k'
_diffrn_measured_fraction_theta_full 0.962
_diffrn_measured_fraction_theta_max 0.962
_diffrn_measurement_details      'frames, 0.3\% width'
_diffrn_measurement_device       'three-circle diffractometer'
_diffrn_measurement_device_type  'Bruker-AXS Platform'
_diffrn_measurement_method       '\w scans'
_diffrn_measurement_specimen_support 'glass fibre'
_diffrn_radiation_collimation    '0.5 mm double pin hole'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71074
_diffrn_reflns_av_R_equivalents  0.0392
_diffrn_reflns_av_sigmaI/netI    0.0336
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            12378
_diffrn_reflns_theta_full        27.81
_diffrn_reflns_theta_max         27.81
_diffrn_reflns_theta_min         2.94
_diffrn_source                   'sealed X-ray tube'
_diffrn_source_current           40
_diffrn_source_power             2
_diffrn_source_target            Mo
_diffrn_source_voltage           50
_exptl_absorpt_coefficient_mu    0.500
_exptl_absorpt_correction_T_max  0.95
_exptl_absorpt_correction_T_min  0.77
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.412
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             536
_exptl_crystal_size_max          0.4
_exptl_crystal_size_mid          0.4
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.230
_refine_diff_density_min         -0.240
_refine_diff_density_rms         0.046
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.021
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     154
_refine_ls_number_reflns         2803
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.021
_refine_ls_R_factor_all          0.0495
_refine_ls_R_factor_gt           0.0314
_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^)+(0.0430P)^2^+0.2625P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0768
_refine_ls_wR_factor_ref         0.0855
_reflns_number_gt                2147
_reflns_number_total             2803
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c1dt10109a.txt
_cod_data_source_block           1
_cod_depositor_comments
;
The following automatic conversions were performed:
'_diffrn_radiation_probe' value 'X-ray' changed to 'x-ray' according to
'/home/saulius/struct/CIF-dictionaries/cif_core.dic' dictionary named
'cif_core.dic' version 2.4.1 from
2010-06-29.

'_exptl_absorpt_correction_type' value 'MULTI-SCAN' changed
to 'multi-scan' according to
'/home/saulius/struct/CIF-dictionaries/cif_core.dic' dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1555 2011-01-17 13:19:09Z saulius 
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7015796