Aromatic Oligoamide β-Sheet Foldamers.
Sebaoun, Laure; Maurizot, Victor; Granier, Thierry; Kauffmann, Brice; Huc, Ivan; Journal of the American Chemical Society 136 (2014) 2168–2174; doi:10.1021/ja412729s

data_4120582
_publ_section_title
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 Aromatic Oligoamide \b-Sheet Foldamers.
;
_journal_issue                   5
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              2168
_journal_page_last               2174
_journal_paper_doi               10.1021/ja412729s
_journal_volume                  136
_journal_year                    2014
_chemical_formula_sum            'C30 H38 N6 O9'
_chemical_formula_weight         626.66
_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                74.310(9)
_cell_angle_beta                 82.691(6)
_cell_angle_gamma                76.120(11)
_cell_formula_units_Z            2
_cell_length_a                   7.442(1)
_cell_length_b                   12.755(2)
_cell_length_c                   18.706(1)
_cell_measurement_reflns_used    4459
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      26.51
_cell_measurement_theta_min      2.83
_cell_volume                     1655.9(4)
_computing_cell_refinement       'Dirax/lsq (Duisenberg & Schreurs, 1989-2000)'
_computing_data_collection       'Collect (Bruker AXS BV, 1997-2004)'
_computing_data_reduction        'EvalCCD (Duisenberg & Schreurs 1990-2000)'
_computing_structure_refinement  'SHELXL (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       CCD
_diffrn_radiation_monochromator  'horizontally mounted graphite crystal'
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0449
_diffrn_reflns_av_sigmaI/netI    0.0375
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            40433
_diffrn_reflns_theta_full        26.51
_diffrn_reflns_theta_max         26.51
_diffrn_reflns_theta_min         2.83
_exptl_absorpt_coefficient_mu    0.094
_exptl_absorpt_correction_T_max  0.9888
_exptl_absorpt_correction_T_min  0.9741
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   scalepack
_exptl_crystal_colour            'dark red'
_exptl_crystal_density_diffrn    1.257
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             664
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.19
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.205
_refine_diff_density_min         -0.207
_refine_diff_density_rms         0.039
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.020
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     422
_refine_ls_number_reflns         6870
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.019
_refine_ls_R_factor_all          0.0871
_refine_ls_R_factor_gt           0.0504
_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^)+(0.0711P)^2^+0.3568P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1252
_refine_ls_wR_factor_ref         0.1464
_reflns_number_gt                4459
_reflns_number_total             6870
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja412729s_si_005.cif
_cod_data_source_block           ls216
_cod_original_cell_volume        1655.9(3)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4120582