The Bicyclic N,N'-Diacylaminal: A New Motif for Molecular Self-Assembly
Robert B. Grossman; Kazuyuki Hattori; Sean Parkin; Brian O. Patrick; Melissa A. Varner; Journal of the American Chemical Society 124 (2002) 13686–13687; doi:10.1021/ja026949y

data_4115308
_publ_section_title
;
 The Bicyclic N,N'-Diacylaminal: A New Motif for Molecular Self-Assembly
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              13686
_journal_page_last               13687
_journal_paper_doi               10.1021/ja026949y
_journal_volume                  124
_journal_year                    2002
_chemical_formula_sum            'C55 H74 N6 O18'
_chemical_formula_weight         1107.20
_chemical_name_systematic
; 
 ? 
;
_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                103.900(10)
_cell_angle_beta                 106.240(10)
_cell_angle_gamma                97.000(10)
_cell_formula_units_Z            2
_cell_length_a                   12.3420(10)
_cell_length_b                   15.8980(10)
_cell_length_c                   15.5260(10)
_cell_measurement_reflns_used    29613
_cell_measurement_temperature    90.0(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      1.00
_cell_volume                     2780.2(4)
_computing_cell_refinement       'SCALEPACK (Otwinowski & Minor, 1997)'
_computing_data_collection       'COLLECT (Nonius, 1998)'
_computing_data_reduction        'DENZO-SMN (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'XP in Siemens SHELXTL (Sheldrick, 1994)'
_computing_publication_material
;
SHELX97-2 (Sheldrick, 1997) and local procedures
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      90.0(2)
_diffrn_detector_area_resol_mean 18
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Nonius KappaCCD diffractometer'
_diffrn_measurement_method       '\w scans at fixed \c = 55\%'
_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  0.0738
_diffrn_reflns_av_sigmaI/netI    0.1339
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            18740
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.35
_diffrn_standards_decay_%        <1
_exptl_absorpt_coefficient_mu    0.099
_exptl_absorpt_correction_T_max  0.9926
_exptl_absorpt_correction_T_min  0.9661
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Scalepack (Otwinowski & Minor, 1997)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.323
_exptl_crystal_description       plate
_exptl_crystal_F_000             1180
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.08
_refine_diff_density_max         .284
_refine_diff_density_min         -.219
_refine_diff_density_rms         .051
_refine_ls_extinction_coef       0.0016(3)
_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   0.972
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     742
_refine_ls_number_reflns         9791
_refine_ls_number_restraints     33
_refine_ls_restrained_S_all      0.971
_refine_ls_R_factor_all          0.1197
_refine_ls_R_factor_gt           0.0567
_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^)+(0.0276P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0840
_refine_ls_wR_factor_ref         0.0981
_reflns_number_gt                5778
_reflns_number_total             9791
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja026949y-3_s2_1.cif
_cod_data_source_block           (2a)6.(C7H8)2
_cod_original_cell_volume        2780.2(3)
_cod_database_code               4115308