Synthesis, Structure, and Coordination Chemistry of Phosphine-Functionalized Imidazole/Imidazolium Salts and Cleavage of a C‒P Bond in an NHC‒Phosphenium Salt using a Pd(0) Precursor
Karthik, Vedhagiri; Gupta, Vivek; Anantharaman, Ganapathi; Organometallics 34 (2015) 3713–; doi:10.1021/acs.organomet.5b00336

data_4087572
_publ_section_title
;
 Synthesis, Structure, and Coordination Chemistry of
 Phosphine-Functionalized Imidazole/Imidazolium Salts and Cleavage of a
 C--P Bond in an NHC--Phosphenium Salt using a Pd(0) Precursor
;
_journal_issue                   15
_journal_name_full               Organometallics
_journal_page_first              3713
_journal_paper_doi               10.1021/acs.organomet.5b00336
_journal_volume                  34
_journal_year                    2015
_chemical_formula_moiety         'C28 H24 Au2 Cl2 N2 P2'
_chemical_formula_sum            'C28 H24 Au2 Cl2 N2 P2'
_chemical_formula_weight         915.26
_chemical_name_common            'Au-Phos complex'
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_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                 90.470(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   16.503(3)
_cell_length_b                   16.518(3)
_cell_length_c                   20.791(4)
_cell_measurement_reflns_used    4198
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      25.58
_cell_measurement_theta_min      2.31
_cell_volume                     5667.4(18)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'ORTEP 3v2'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and 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  0.0735
_diffrn_reflns_av_sigmaI/netI    0.0885
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            31402
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         1.23
_exptl_absorpt_coefficient_mu    10.664
_exptl_absorpt_correction_T_max  0.4152
_exptl_absorpt_correction_T_min  0.2498
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    2.145
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             3424
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.10
_refine_diff_density_max         3.514
_refine_diff_density_min         -1.580
_refine_diff_density_rms         0.304
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.027
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     651
_refine_ls_number_reflns         11079
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.027
_refine_ls_R_factor_all          0.0842
_refine_ls_R_factor_gt           0.0529
_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^)+(0.0584P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1140
_refine_ls_wR_factor_ref         0.1339
_reflns_number_gt                7942
_reflns_number_total             11079
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om5b00336_si_002.cif
_cod_data_source_block           17apram
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_exptl_absorpt_correction_type' value 'Empirical' was
changed to 'empirical' in accordance with the
/home/saulius/struct/COD-crude-data/automatic-downloads/DataCite-retrospective/ACS/depositions/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

data item '_refine_ls_hydrogen_treatment' value 'Constr' was changed
to 'constr' in accordance with the
/home/saulius/struct/COD-crude-data/automatic-downloads/DataCite-retrospective/ACS/depositions/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

data item '_symmetry_cell_setting' value 'Monoclinic' was changed to
'monoclinic' in accordance with the
/home/saulius/struct/COD-crude-data/automatic-downloads/DataCite-retrospective/ACS/depositions/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 

2020-05-08
Z value and formula fixed to values more according to usual
chemical conventions.                 miguel
;
_cod_original_formula_sum            'C56 H48 Au4 Cl4 N4 P4'
_cod_original_formula_weight         1830.53
_cod_original_formula_moiety         'C56 H48 Au4 Cl4 N4 P4'
_cod_original_formula_units_Z            4
_cod_original_cell_volume        5667.7(19)
_cod_original_sg_symbol_Hall     '-P 2ybc '
_cod_original_sg_symbol_H-M      'P2(1)/c  '
_cod_database_code               4087572