Selective Recognition of an Alkali Halide Contact Ion-Pair
Joseph M. Mahoney; Alicia M. Beatty; Bradley D. Smith; Journal of the American Chemical Society 123 (2001) 5847–5848; doi:10.1021/ja0156082

data_4115583
_publ_section_title
;
 Selective Recognition of an Alkali Halide Contact Ion-Pair
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              5847
_journal_page_last               5848
_journal_paper_doi               10.1021/ja0156082
_journal_volume                  123
_journal_year                    2001
_chemical_formula_sum            'C39.2 H52.4 Cl K N4 O6.6'
_chemical_formula_weight         759.80
_chemical_name_systematic
;
  ?
;
_space_group_IT_number           14
_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                 103.7320(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   22.6601(14)
_cell_length_b                   13.1202(9)
_cell_length_c                   27.7671(18)
_cell_measurement_temperature    173(2)
_cell_volume                     8019.3(9)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_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      173(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_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  0.0378
_diffrn_reflns_av_sigmaI/netI    0.0738
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -26
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       32
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            39647
_diffrn_reflns_theta_full        24.73
_diffrn_reflns_theta_max         24.73
_diffrn_reflns_theta_min         1.51
_exptl_absorpt_coefficient_mu    0.250
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.259
_exptl_crystal_description       plate
_exptl_crystal_F_000             3235
_exptl_crystal_size_max          0.5
_exptl_crystal_size_mid          0.4
_exptl_crystal_size_min          0.06
_refine_diff_density_max         2.024
_refine_diff_density_min         -0.456
_refine_diff_density_rms         0.122
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.026
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1007
_refine_ls_number_reflns         13680
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.026
_refine_ls_R_factor_all          0.1174
_refine_ls_R_factor_gt           0.0806
_refine_ls_shift/su_max          0.532
_refine_ls_shift/su_mean         0.012
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1626P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2401
_refine_ls_wR_factor_ref         0.2644
_reflns_number_gt                7953
_reflns_number_total             13680
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja0156082_2.cif
_cod_data_source_block           compound2KCl
_cod_original_formula_sum        'C39.20 H52.40 Cl K N4 O6.60'
_cod_database_code               4115583