Efficient PEPPSI-Themed Palladium N-Heterocyclic Carbene Precatalysts for the Mizoroki‒Heck Reaction
Lin, Yong-Chieh; Hsueh, Hsin-Hsueh; Kanne, Shanker; Chang, Li-Kuang; Liu, Fu-Chen; Lin, Ivan J. B.; Lee, Gene-Hsiang; Peng, Shie-Ming; Organometallics 32 (2013) 3859–; doi:10.1021/om4003297

data_4081004
_publ_section_title
;
 Efficient PEPPSI-Themed Palladium N-Heterocyclic Carbene Precatalysts for
 the Mizoroki--Heck Reaction
;
_journal_issue                   14
_journal_name_full               Organometallics
_journal_page_first              3859
_journal_paper_doi               10.1021/om4003297
_journal_volume                  32
_journal_year                    2013
_chemical_formula_sum            'C12 H16 Br2 N4 O Pd'
_chemical_formula_weight         498.51
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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                 117.612(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   26.8943(18)
_cell_length_b                   8.3333(6)
_cell_length_c                   16.2697(11)
_cell_measurement_reflns_used    4474
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.35
_cell_measurement_theta_min      2.59
_cell_volume                     3231.0(4)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_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      150(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'BRUKER SMART APEXCCD area detector'
_diffrn_measurement_method       'omega scans'
_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  0.0339
_diffrn_reflns_av_sigmaI/netI    0.0332
_diffrn_reflns_limit_h_max       34
_diffrn_reflns_limit_h_min       -34
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            12045
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         1.71
_exptl_absorpt_coefficient_mu    6.096
_exptl_absorpt_correction_T_max  0.3110
_exptl_absorpt_correction_T_min  0.2242
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    2.050
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1920
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.25
_refine_diff_density_max         1.186
_refine_diff_density_min         -0.448
_refine_diff_density_rms         0.101
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.064
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     180
_refine_ls_number_reflns         3702
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.068
_refine_ls_R_factor_all          0.0364
_refine_ls_R_factor_gt           0.0304
_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^)+(0.0228P)^2^+8.4342P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0644
_refine_ls_wR_factor_ref         0.0666
_reflns_number_gt                3283
_reflns_number_total             3702
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om4003297_si_002.cif
_cod_data_source_block           ic14482
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not_measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               4081004