Solid-phase synthesis of oligo(p-benzamide) foldamers.
König, Hannah M; Abbel, Robert; Schollmeyer, Dieter; Kilbinger, Andreas F. M.; Organic letters 8 (2006) 1819–1822; doi:10.1021/ol0603357

data_1505928
_publ_section_title
;
 Solid-phase synthesis of oligo(p-benzamide) foldamers.
;
_journal_issue                   9
_journal_name_full               'Organic letters'
_journal_page_first              1819
_journal_page_last               1822
_journal_paper_doi               10.1021/ol0603357
_journal_volume                  8
_journal_year                    2006
_chemical_formula_sum            'C20 H22 N2 O5'
_chemical_formula_weight         370.40
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_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                 111.239(8)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   24.997(5)
_cell_length_b                   8.6063(9)
_cell_length_c                   19.087(4)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    193(2)
_cell_measurement_theta_max      26
_cell_measurement_theta_min      18
_cell_volume                     3827.3(12)
_computing_cell_refinement       'Enraf Nonius Software V5'
_computing_data_collection       'Enraf Nonius Software V5'
_computing_data_reduction        'Corinc (Dr\"ager, 1971)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR-92 (Altomare, 1994)'
_diffrn_ambient_temperature      193(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device       '\k-geometry diffractometer'
_diffrn_measurement_device_type  'CAD4 Enraf Nonius'
_diffrn_measurement_method       \q/2\w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0609
_diffrn_reflns_av_sigmaI/netI    0.1154
_diffrn_reflns_limit_h_max       0
_diffrn_reflns_limit_h_min       -30
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            7443
_diffrn_reflns_theta_full        70.10
_diffrn_reflns_theta_max         70.10
_diffrn_reflns_theta_min         1.90
_diffrn_source                   'rotating anode'
_diffrn_standards_decay_%        20
_diffrn_standards_interval_time  60
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.769
_exptl_absorpt_correction_T_max  0.9553
_exptl_absorpt_correction_T_min  0.7588
_exptl_absorpt_correction_type   none
_exptl_absorpt_process_details   'Corinc (Dr\"ager, 1971)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.286
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1568
_exptl_crystal_size_max          0.38
_exptl_crystal_size_mid          0.32
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.533
_refine_diff_density_min         -0.267
_refine_diff_density_rms         0.058
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.012
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     514
_refine_ls_number_reflns         7268
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.012
_refine_ls_R_factor_all          0.1951
_refine_ls_R_factor_gt           0.0835
_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^)+(0.1060P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_obs         0.1978
_refine_ls_wR_factor_ref         0.2568
_reflns_number_gt                3248
_reflns_number_total             7268
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol0603357si20060208_102539.cif
_cod_data_source_block           4
_cod_original_cell_volume        3827.2(12)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               1505928