Dipyrrolylmethane-based Macrobicyclic Azacryptand: Synthesis, X-ray Structures, Conformational and Anion Binding Properties
Tapas Guchhait; Ganesan Mani; Journal of Organic Chemistry 76 (2011) 10114–10121; doi:10.1021/jo201969f

data_4026795
_publ_section_title
;
 Dipyrrolylmethane-based Macrobicyclic Azacryptand: Synthesis, X-ray
 Structures, Conformational and Anion Binding Properties
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              10114
_journal_page_last               10121
_journal_paper_doi               10.1021/jo201969f
_journal_volume                  76
_journal_year                    2011
_chemical_formula_sum            'C45 H68 N8 O4'
_chemical_formula_weight         785.07
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
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_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
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_cell_length_c                   26.199(9)
_cell_measurement_reflns_used    1715
_cell_measurement_temperature    110(2)
_cell_measurement_theta_max      30.17
_cell_measurement_theta_min      4.15
_cell_volume                     17367(10)
_computing_cell_refinement       'Bruker FRAMBO'
_computing_data_collection       'Bruker FRAMBO'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      110(2)
_diffrn_measured_fraction_theta_full 0.985
_diffrn_measured_fraction_theta_max 0.985
_diffrn_measurement_device_type  'MWPC area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.2923
_diffrn_reflns_av_sigmaI/netI    0.1220
_diffrn_reflns_limit_h_max       29
_diffrn_reflns_limit_h_min       -29
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -28
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            142232
_diffrn_reflns_theta_full        60.00
_diffrn_reflns_theta_max         60.00
_diffrn_reflns_theta_min         2.96
_exptl_absorpt_coefficient_mu    0.616
_exptl_absorpt_correction_T_max  0.9939
_exptl_absorpt_correction_T_min  0.9409
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            'colorless '
_exptl_crystal_density_diffrn    1.201
_exptl_crystal_description       plate
_exptl_crystal_F_000             6816
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.01
_refine_diff_density_max         0.527
_refine_diff_density_min         -0.215
_refine_diff_density_rms         0.050
_refine_ls_extinction_coef       0.000301(19)
_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   1.033
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1055
_refine_ls_number_reflns         12705
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.033
_refine_ls_R_factor_all          0.1356
_refine_ls_R_factor_gt           0.0694
_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^)+(0.0500P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1253
_refine_ls_wR_factor_ref         0.1467
_reflns_number_gt                7576
_reflns_number_total             12705
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo201969f_si_001.cif
_cod_data_source_block           compound1
_cod_original_cell_volume        17368(10)
_cod_database_code               4026795