Selective and adaptable access to N,N'-asymmetrically substituted imidazol-2-ylidene bis-NHC ligands: Pd(II) complexes featuring wide variation in N-alkyl and aryl steric bulk.
Gardiner, Michael G.; Ho, Curtis C.; Mackay, Felicity M.; McGuinness, David S.; Tucker, Matthew; Dalton transactions (Cambridge, England : 2003) 42 (2013) 7447–7457; doi:10.1039/c3dt32895c

data_7022720
_publ_section_title
;
 Selective and adaptable access to N,N'-asymmetrically substituted
 imidazol-2-ylidene bis-NHC ligands: Pd(II) complexes featuring wide
 variation in N-alkyl and aryl steric bulk.
;
_journal_issue                   20
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              7447
_journal_page_last               7457
_journal_paper_doi               10.1039/c3dt32895c
_journal_volume                  42
_journal_year                    2013
_chemical_formula_sum            'C15 H21 Cl N2'
_chemical_formula_weight         264.79
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_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                 98.33(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.5500(18)
_cell_length_b                   16.6320(13)
_cell_length_c                   10.9560(9)
_cell_measurement_reflns_used    23956
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      28.83
_cell_measurement_theta_min      3.26
_cell_volume                     1541.5(4)
_computing_cell_refinement       XDS
_computing_data_collection       BLU-ICE
_computing_data_reduction        XDS
_computing_molecular_graphics
;
'X-SEED (Barbour, 2008) and ORTEPIII (Farrugia, 1998)'
;
_computing_publication_material  'WinGX (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 'ADSC Q210'
_diffrn_measured_fraction_theta_full 0.939
_diffrn_measured_fraction_theta_max 0.939
_diffrn_measurement_device_type  '3-BM1 Australian Synchrotron'
_diffrn_measurement_method       Rotation
_diffrn_radiation_monochromator  Si<111>
_diffrn_radiation_source         'synchrotron BM'
_diffrn_radiation_type           Synchrotron
_diffrn_radiation_wavelength     0.71090
_diffrn_reflns_av_R_equivalents  0.0361
_diffrn_reflns_av_sigmaI/netI    0.0227
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            24625
_diffrn_reflns_theta_full        28.83
_diffrn_reflns_theta_max         28.83
_diffrn_reflns_theta_min         3.26
_exptl_absorpt_coefficient_mu    0.234
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.141
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             568
_exptl_crystal_size_max          0.05
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.435
_refine_diff_density_min         -0.239
_refine_diff_density_rms         0.047
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.089
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     166
_refine_ls_number_reflns         3788
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.089
_refine_ls_R_factor_all          0.0486
_refine_ls_R_factor_gt           0.0478
_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^)+(0.0448P)^2^+0.9059P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1179
_refine_ls_wR_factor_ref         0.1185
_reflns_number_gt                3685
_reflns_number_total             3788
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3dt32895c.txt
_cod_data_source_block           d:\as28ch27
_cod_original_sg_symbol_H-M      P21/n
_cod_database_code               7022720