Construction of Peptoids with All Trans-Amide Backbones and Peptoid Reverse Turns via the Tactical Incorporation of N-Aryl Side Chains Capable of Hydrogen Bonding
Joseph R. Stringer; J. Aaron Crapster; Ilia A. Guzei; Helen E. Blackwell; Journal of Organic Chemistry 75 (2010) 6068–6078; doi:10.1021/jo101075a

data_4025678
_publ_contact_author_address
;
Department of Chemistry
University of Wisconsin-Madison
1101 University Ave
Madison, WI  53706
USA
;
_publ_contact_author_email       iguzei@chem.wisc.edu
_publ_contact_author_fax         608-262-0381
_publ_contact_author_name
;
Guzei, Ilia A. 
;
_publ_contact_author_phone       608-263-4694
_publ_section_title
;
 Construction of Peptoids with All Trans-Amide Backbones and Peptoid
 Reverse Turns via the Tactical Incorporation of N-Aryl Side Chains
 Capable of Hydrogen Bonding
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              6068
_journal_page_last               6078
_journal_paper_doi               10.1021/jo101075a
_journal_volume                  75
_journal_year                    2010
_chemical_formula_moiety         'C15 H20 N2 O3'
_chemical_formula_sum            'C15 H20 N2 O3'
_chemical_formula_weight         276.33
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_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
;
manual editing of the CIF file 
created by SHELXTL Ver. 6.10
and processed with modiCIfer-09152005. 
;
_audit_update_record
;
2008-09-16 # Formatted by publCIF
;
_cell_angle_alpha                90.00
_cell_angle_beta                 91.7060(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   8.6600(2)
_cell_length_b                   29.0866(7)
_cell_length_c                   11.5414(3)
_cell_measurement_reflns_used    9755
_cell_measurement_temperature    103(2)
_cell_measurement_theta_max      69.4101
_cell_measurement_theta_min      3.0386
_cell_volume                     2905.87(12)
_computing_cell_refinement       'SAINT Ver. 7.24A (Bruker-AXS, 2007)'
_computing_data_collection       'APEX2 Ver. 2.1-4 (Bruker-AXS, 2007)'
_computing_data_reduction        'SAINT Ver. 7.24A'
_computing_molecular_graphics    'SHELXTL Ver. 6.10'
_computing_publication_material  'SHELXTL Ver. 6.10'
_computing_structure_refinement  'SHELXTL Ver. 6.10'
_computing_structure_solution    'SHELXTL Ver. 6.10 (Sheldrick, 2008)'
_diffrn_ambient_temperature      103(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '0.50\\% \\w and 0.5 \\% \\f scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0202
_diffrn_reflns_av_sigmaI/netI    0.0098
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       34
_diffrn_reflns_limit_k_min       -34
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            46582
_diffrn_reflns_theta_full        69.92
_diffrn_reflns_theta_max         69.92
_diffrn_reflns_theta_min         3.04
_exptl_absorpt_coefficient_mu    0.721
_exptl_absorpt_correction_T_max  0.8692
_exptl_absorpt_correction_T_min  0.7613
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS  (Bruker-AXS, 2003)
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.263
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1184
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.311
_refine_diff_density_min         -0.267
_refine_diff_density_rms         0.038
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.002
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     365
_refine_ls_number_reflns         5465
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.002
_refine_ls_R_factor_all          0.0370
_refine_ls_R_factor_gt           0.0349
_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^)+(0.0559P)^2^+1.0885P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0943
_refine_ls_wR_factor_ref         0.0966
_reflns_number_gt                5137
_reflns_number_total             5465
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            jo101075a_si_004.cif
_cod_data_source_block           blackwell11
_cod_original_sg_symbol_Hall     '-P 2ybc     '
_cod_original_sg_symbol_H-M      'P 1 21/c 1 '
_cod_database_code               4025678