A C3v-Symmetric Tripodal Urea Receptor for Anions and Ion Pairs: Formation of Dimeric Capsular Assemblies of the Receptor during Anion and Ion Pair Coordination.
Basu, Arghya; Das, Gopal; The Journal of organic chemistry 79 (2014) 2647–2656; doi:10.1021/jo500102e

data_4029167
_publ_section_title
;
 A C3v-Symmetric Tripodal Urea Receptor for Anions and Ion Pairs:
 Formation of Dimeric Capsular Assemblies of the Receptor during Anion and
 Ion Pair Coordination.
;
_journal_issue                   6
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              2647
_journal_page_last               2656
_journal_paper_doi               10.1021/jo500102e
_journal_volume                  79
_journal_year                    2014
_chemical_formula_sum            'C90 H84 K2 N20 O51 P'
_chemical_formula_weight         2369.36
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           163
_symmetry_cell_setting           trigonal
_symmetry_space_group_name_Hall  '-P 3 2c'
_symmetry_space_group_name_H-M   'P -3 1 c'
_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                120.00
_cell_formula_units_Z            2
_cell_length_a                   17.3549(9)
_cell_length_b                   17.3549(9)
_cell_length_c                   22.6324(12)
_cell_measurement_temperature    298(2)
_cell_volume                     5903.4(5)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_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      298(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_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  0.0992
_diffrn_reflns_av_sigmaI/netI    0.0844
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -23
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            16209
_diffrn_reflns_theta_full        28.80
_diffrn_reflns_theta_max         28.80
_diffrn_reflns_theta_min         2.96
_exptl_absorpt_coefficient_mu    0.192
_exptl_absorpt_correction_T_max  0.966
_exptl_absorpt_correction_T_min  0.960
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.334
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2450.0
_exptl_crystal_size_max          0.21
_exptl_crystal_size_mid          0.19
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.369
_refine_diff_density_min         -0.387
_refine_diff_density_rms         0.062
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.034
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     244
_refine_ls_number_reflns         5125
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.034
_refine_ls_R_factor_all          0.1706
_refine_ls_R_factor_gt           0.0966
_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^)+(0.1717P)^2^+1.6550P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2740
_refine_ls_wR_factor_ref         0.3437
_reflns_number_gt                2213
_reflns_number_total             5125
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo500102e_si_002.cif
_cod_data_source_block           Complex3
_cod_database_code               4029167