A Conformationally Flexible, Urea-Based Tripodal Anion Receptor: Solid-State, Solution, and Theoretical Studies
David R. Turner; Martin J. Paterson; Jonathan W. Steed; Journal of Organic Chemistry 71 (2006) 1598–1608; doi:10.1021/jo052339f

data_4021511
_publ_section_title
;
 A Conformationally Flexible, Urea-Based Tripodal Anion Receptor:
 Solid-State, Solution, and Theoretical Studies
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              1598
_journal_page_last               1608
_journal_paper_doi               10.1021/jo052339f
_journal_volume                  71
_journal_year                    2006
_chemical_formula_sum            'C54 H60 F6 N10.75 O8.5 P1.25'
_chemical_formula_weight         1148.34
_chemical_name_common            TUP.PF6/NO3
_chemical_name_systematic
;
 TUP.PF6/NO3
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 96.0980(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   14.0745(2)
_cell_length_b                   26.5397(3)
_cell_length_c                   29.3483(4)
_cell_measurement_temperature    120(2)
_cell_volume                     10900.5(2)
_computing_cell_refinement       'DENZO-SMN (Otwinowski & Minor, 1997)'
_computing_data_collection       'Collect (Nonius, 1998)'
_computing_data_reduction        'DENZO-SMN (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'X-Seed (Barbour, 1999)'
_computing_publication_material  'CIFTAB (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      120(2)
_diffrn_measured_fraction_theta_full 0.984
_diffrn_measured_fraction_theta_max 0.984
_diffrn_measurement_device_type  'Nonis KappaCCD CCD diffractometer'
_diffrn_measurement_method       'phi & 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  0.0570
_diffrn_reflns_av_sigmaI/netI    0.0705
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       30
_diffrn_reflns_limit_k_min       -30
_diffrn_reflns_limit_l_max       34
_diffrn_reflns_limit_l_min       -34
_diffrn_reflns_number            18425
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.72
_diffrn_standards_decay_%        0.0
_exptl_absorpt_coefficient_mu    0.144
_exptl_absorpt_correction_T_max  0.9717
_exptl_absorpt_correction_T_min  0.9313
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.399
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             4800
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.862
_refine_diff_density_min         -1.319
_refine_diff_density_rms         0.103
_refine_ls_extinction_coef       0.0022(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   1.029
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     743
_refine_ls_number_reflns         9447
_refine_ls_number_restraints     30
_refine_ls_restrained_S_all      1.035
_refine_ls_R_factor_all          0.1169
_refine_ls_R_factor_gt           0.0828
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1460P)^2^+29.2162P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2247
_refine_ls_wR_factor_ref         0.2503
_reflns_number_gt                6657
_reflns_number_total             9447
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo052339fsi20051111_082502.cif
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_original_formula_sum        'C54 H60 F6 N10.75 O8.50 P1.25'
_cod_database_code               4021511