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_4110882
_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, C8 H20 P 1+, Cl 1-, C H2 Cl2'
_chemical_formula_sum            'C37 H58 Cl3 N4 P'
_chemical_formula_weight         696.19
_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                91.377(1)
_cell_angle_beta                 95.216(1)
_cell_angle_gamma                97.477(1)
_cell_formula_units_Z            2
_cell_length_a                   10.4127(2)
_cell_length_b                   10.5126(2)
_cell_length_c                   17.6381(5)
_cell_measurement_reflns_used    6322
_cell_measurement_temperature    153(2)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      1
_cell_volume                     1905.14(7)
_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 0.976
_diffrn_measured_fraction_theta_max 0.976
_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  0.0260
_diffrn_reflns_av_sigmaI/netI    0.0503
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            13504
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         1.96
_exptl_absorpt_coefficient_mu    0.313
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.214
_exptl_crystal_description       prisms
_exptl_crystal_F_000             748
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.894
_refine_diff_density_min         -0.825
_refine_diff_density_rms         0.055
_refine_ls_extinction_coef       0.0054(9)
_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   1.000
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     435
_refine_ls_number_reflns         8549
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.000
_refine_ls_R_factor_all          0.0638
_refine_ls_R_factor_gt           0.0440
_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^)+(0.0483P)^2^+1.0977P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1050
_refine_ls_wR_factor_ref         0.1168
_reflns_number_gt                6574
_reflns_number_total             8549
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja064012hsi20060606_072246.cif
_cod_data_source_block           cptepcl
_cod_database_code               4110882