Facile purification of the N-heterocyclic carbene precursor [IMesH][Cl] and chloride binding in the solvates [IMesH][Cl]�acetone and [IMesH][Cl]�H2O (IMes = 1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene)
Cole, Marcus L.; Junk, Peter C.; CrystEngComm 6 (2004) 173–; doi:10.1039/b403451a

data_7204866
_publ_section_title
;
 Facile purification of the N-heterocyclic carbene precursor
 [IMesH][Cl] and chloride binding in the solvates
 [IMesH][Cl]&#xFFFD;acetone and [IMesH][Cl]&#xFFFD;H2O (IMes =
 1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene)
;
_journal_issue                   30
_journal_name_full               CrystEngComm
_journal_page_first              173
_journal_paper_doi               10.1039/b403451a
_journal_volume                  6
_journal_year                    2004
_chemical_formula_sum            'C24 H31 Cl N2 O'
_chemical_formula_weight         398.96
_chemical_name_common            (IMesH)(Cl).Acetone
_chemical_name_systematic
;
?
;
_space_group_IT_number           2
_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                70.27(3)
_cell_angle_beta                 80.10(3)
_cell_angle_gamma                76.55(3)
_cell_formula_units_Z            2
_cell_length_a                   8.3676(17)
_cell_length_b                   11.315(2)
_cell_length_c                   13.246(3)
_cell_measurement_temperature    123(2)
_cell_volume                     1142.1(5)
_computing_cell_refinement       DENZO-SMN
_computing_data_collection       'Nonius Collect'
_computing_data_reduction        Nonius
_computing_molecular_graphics    'X-Seed / POV-Ray'
_computing_publication_material  'Microsoft Office 2000'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 0.963
_diffrn_measured_fraction_theta_max 0.963
_diffrn_measurement_device_type  'Nonius Kappa CCD'
_diffrn_measurement_method       'psi 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  0.0849
_diffrn_reflns_av_sigmaI/netI    0.0896
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            15323
_diffrn_reflns_theta_full        30.53
_diffrn_reflns_theta_max         30.53
_diffrn_reflns_theta_min         1.95
_exptl_absorpt_coefficient_mu    0.183
_exptl_absorpt_correction_T_max  0.9643
_exptl_absorpt_correction_T_min  0.9141
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'performed as part of the DENZO-SMN package'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.160
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needles
_exptl_crystal_F_000             428
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.936
_refine_diff_density_min         -0.769
_refine_diff_density_rms         0.111
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.017
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     355
_refine_ls_number_reflns         6718
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.017
_refine_ls_R_factor_all          0.1181
_refine_ls_R_factor_gt           0.0842
_refine_ls_shift/su_max          0.054
_refine_ls_shift/su_mean         0.004
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
;
calc w=1/[\s^2^(Fo^2^)+(0.1514P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2048
_refine_ls_wR_factor_ref         0.2310
_reflns_number_gt                4607
_reflns_number_total             6718
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b403451a.txt
_cod_data_source_block           Compound_2
_cod_original_cell_volume        1142.2(4)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7204866