Directional properties of fluorenylidene moieties in unsymmetrically substituted N-heterocyclic carbenes. Unexpected CH activation of a methylfluorenyl group with palladium. Use in palladium catalysed Suzuki-Miyaura cross coupling of aryl chlorides.
Teci, Matthieu; Brenner, Eric; Matt, Dominique; Gourlaouen, Christophe; Toupet, Loïc; Dalton transactions (Cambridge, England : 2003) 43 (2014) 12251–12262; doi:10.1039/c4dt01102c

data_7031296
_publ_section_title
;
 Directional properties of fluorenylidene moieties in unsymmetrically
 substituted N-heterocyclic carbenes. Unexpected CH activation of a
 methylfluorenyl group with palladium. Use in palladium catalysed
 Suzuki-Miyaura cross coupling of aryl chlorides.
;
_journal_issue                   32
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              12251
_journal_page_last               12262
_journal_paper_doi               10.1039/c4dt01102c
_journal_volume                  43
_journal_year                    2014
_chemical_formula_sum            'C98 H75 Cl9 N6 Pd2'
_chemical_formula_weight         1868.49
_chemical_name_systematic
;
 ?
;
_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                 103.048(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   20.5938(5)
_cell_length_b                   18.5018(4)
_cell_length_c                   24.0322(7)
_cell_measurement_reflns_used    17948
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      2.60
_cell_volume                     8920.4(4)
_computing_cell_refinement
'CrysAlis RED, Oxford Diffraction Ltd.,Version 1.171.35.11'
_computing_data_collection
'CrysAlis CCD, Oxford Diffraction Ltd.,Version 1.171.35.11'
_computing_data_reduction
'CrysAlis RED, Oxford Diffraction Ltd.,Version 1.171.35.11'
_computing_molecular_graphics    'MERCURY 2.4.5(CCDC, 2011)'
_computing_publication_material  'WINGX (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR-97_(Altomare & al., 1999)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 16.1852
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'CCD Saphire 3 Xcalibur'
_diffrn_measurement_method       'omega scan'
_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  0.0689
_diffrn_reflns_av_unetI/netI     0.1553
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       -26
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            67669
_diffrn_reflns_theta_full        27.00
_diffrn_reflns_theta_max         27.00
_diffrn_reflns_theta_min         2.60
_exptl_absorpt_coefficient_mu    0.723
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.391
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             3800
_exptl_crystal_size_max          0.208
_exptl_crystal_size_mid          0.162
_exptl_crystal_size_min          0.149
_refine_diff_density_max         2.021
_refine_diff_density_min         -1.070
_refine_diff_density_rms         0.114
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.717
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1023
_refine_ls_number_reflns         19447
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.717
_refine_ls_R_factor_all          0.1384
_refine_ls_R_factor_gt           0.0673
_refine_ls_shift/su_max          0.008
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1143P)^2^+74.1558P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1883
_refine_ls_wR_factor_ref         0.2091
_reflns_number_gt                9064
_reflns_number_total             19447
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4dt01102c1.cif
_cod_data_source_block           970760(5d)
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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 2281 2013-09-26 08:29:07Z andrius 

 Adding full bibliography for 7031296--7031297.cif.
;
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               7031296