Calix[4]pyrrole as a Chloride Anion Receptor: Solvent and Countercation Effects
Jonathan L. Sessler; Dustin E. Gross; Won-Seob Cho; Vincent M. Lynch; Franz P. Schmidtchen; Gareth W. Bates; Mark E. Light; Philip A. Gale; Journal of the American Chemical Society 128 (2006) 12281–12288; doi:10.1021/ja064012h

data_4110883
_publ_section_title
;
 Calix[4]pyrrole as a Chloride Anion Receptor: Solvent and Countercation
 Effects
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              12281
_journal_page_last               12288
_journal_paper_doi               10.1021/ja064012h
_journal_volume                  128
_journal_year                    2006
_chemical_formula_moiety         'C28 H36 N4, C16 H36 P 1+, Cl 1-, C H2 Cl2'
_chemical_formula_sum            'C45 H74 Cl3 N4 P'
_chemical_formula_weight         808.40
_space_group_IT_number           33
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2n'
_symmetry_space_group_name_H-M   'P n a 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   21.1602(3)
_cell_length_b                   19.9577(3)
_cell_length_c                   10.9419(2)
_cell_measurement_reflns_used    5725
_cell_measurement_temperature    153(2)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      1
_cell_volume                     4620.86(13)
_computing_cell_refinement       'Collect software, Nonius B.V. 1998'
_computing_data_collection       'Collect software, Nonius B.V. 1998'
_computing_data_reduction
;
DENZO and Scalepack (Otwinoski and Minor, 1997)
;
_computing_molecular_graphics    'XP SHELXTL/PC, Siemens Analytical'
_computing_structure_refinement  'XL SHELXTL/PC, Siemens Analytical'
_computing_structure_solution
;

SIR97 - Altomare A., Burla M.C., Camalli M., Cascarano G.L., Giacovazzo C., 
Guagliardi A., Moliterni A.G.G., Polidori G.,Spagna R.
;
_diffrn_ambient_temperature      153(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Nonius Kappa CCD'
_diffrn_measurement_method       \w-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  0.0307
_diffrn_reflns_av_sigmaI/netI    0.0416
_diffrn_reflns_limit_h_max       27
_diffrn_reflns_limit_h_min       -27
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -25
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            10323
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         2.12
_exptl_absorpt_coefficient_mu    0.267
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.162
_exptl_crystal_description       prisms
_exptl_crystal_F_000             1752
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.528
_refine_diff_density_min         -0.528
_refine_diff_density_rms         0.054
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_extinction_coef       0.0019(4)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.072
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     507
_refine_ls_number_reflns         5584
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.072
_refine_ls_R_factor_all          0.0595
_refine_ls_R_factor_gt           0.0453
_refine_ls_shift/su_max          0.037
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0455P)^2^+2.2091P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1027
_refine_ls_wR_factor_ref         0.1104
_reflns_number_gt                4685
_reflns_number_total             5584
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja064012hsi20060606_072325.cif
_cod_data_source_block           pcalix
_cod_database_code               4110883