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_4087578
_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         'C17 H17 I2 N2 P'
_chemical_formula_sum            'C17 H17 I2 N2 P'
_chemical_formula_weight         534.10
_chemical_name_common            'Imidazolium salt '
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                82.126(7)
_cell_angle_beta                 86.228(8)
_cell_angle_gamma                80.974(7)
_cell_formula_units_Z            2
_cell_length_a                   7.549(3)
_cell_length_b                   8.518(4)
_cell_length_c                   14.909(7)
_cell_measurement_reflns_used    1681
_cell_measurement_temperature    273(2)
_cell_measurement_theta_max      24.52
_cell_measurement_theta_min      2.76
_cell_volume                     936.9(7)
_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      273(2)
_diffrn_measured_fraction_theta_full 0.970
_diffrn_measured_fraction_theta_max 0.970
_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  0.0224
_diffrn_reflns_av_sigmaI/netI    0.0480
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            5212
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         2.44
_exptl_absorpt_coefficient_mu    3.440
_exptl_absorpt_correction_T_max  0.6445
_exptl_absorpt_correction_T_min  0.5319
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.893
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Needle
_exptl_crystal_F_000             508
_exptl_crystal_size_max          0.21
_exptl_crystal_size_mid          0.17
_exptl_crystal_size_min          0.14
_refine_diff_density_max         1.213
_refine_diff_density_min         -1.348
_refine_diff_density_rms         0.424
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.117
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     201
_refine_ls_number_reflns         3579
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.117
_refine_ls_R_factor_all          0.0668
_refine_ls_R_factor_gt           0.0485
_refine_ls_shift/su_max          0.005
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1030P)^2^+0.1998P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1307
_refine_ls_wR_factor_ref         0.1814
_reflns_number_gt                2835
_reflns_number_total             3579
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om5b00336_si_002.cif
_cod_data_source_block           14febbm
_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 'Triclinic' was changed to
'triclinic' 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 
;
_cod_original_sg_symbol_Hall     -P1
_cod_original_sg_symbol_H-M      'P-1   '
_cod_database_code               4087578