Dipeptide Nanotubes Containing Unnatural Fluorine-Substituted β(2,3)-Diarylamino Acid and l-Alanine as Candidates for Biomedical Applications.
Bonetti, Andrea; Pellegrino, Sara; Das, Priyadip; Yuran, Sivan; Bucci, Raffaella; Ferri, Nicola; Meneghetti, Fiorella; Castellano, Carlo; Reches, Meital; Gelmi, Maria Luisa; Organic letters 17 (2015) 4468–4471; doi:10.1021/acs.orglett.5b02132

data_1534101
_publ_section_title
;
 Dipeptide Nanotubes Containing Unnatural Fluorine-Substituted
 \b(2,3)-Diarylamino Acid and l-Alanine as Candidates for Biomedical
 Applications.
;
_journal_issue                   18
_journal_name_full               'Organic letters'
_journal_page_first              4468
_journal_page_last               4471
_journal_paper_doi               10.1021/acs.orglett.5b02132
_journal_volume                  17
_journal_year                    2015
_chemical_formula_sum            'C24 H29 F N2 O5'
_chemical_formula_weight         444.49
_space_group_IT_number           146
_symmetry_cell_setting           rhombohedral
_symmetry_space_group_name_Hall  'R 3'
_symmetry_space_group_name_H-M   'R 3 :H'
_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                 90.00
_cell_angle_gamma                120.00
_cell_formula_units_Z            9
_cell_length_a                   31.820(5)
_cell_length_b                   31.820(5)
_cell_length_c                   6.2030(12)
_cell_measurement_reflns_used    5615
_cell_measurement_temperature    294(2)
_cell_measurement_theta_max      25.49
_cell_measurement_theta_min      2.22
_cell_volume                     5439.2(16)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      294(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker APEX II CCD diffractometer'
_diffrn_measurement_method       'omega scan'
_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  0.0285
_diffrn_reflns_av_sigmaI/netI    0.0332
_diffrn_reflns_limit_h_max       39
_diffrn_reflns_limit_h_min       -39
_diffrn_reflns_limit_k_max       39
_diffrn_reflns_limit_k_min       -39
_diffrn_reflns_limit_l_max       7
_diffrn_reflns_limit_l_min       -7
_diffrn_reflns_number            13781
_diffrn_reflns_theta_full        26.31
_diffrn_reflns_theta_max         26.31
_diffrn_reflns_theta_min         1.28
_exptl_absorpt_coefficient_mu    0.091
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.786
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.221
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             2124
_exptl_crystal_size_max          0.08
_exptl_crystal_size_mid          0.03
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.567
_refine_diff_density_min         -0.197
_refine_diff_density_rms         0.060
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.2(11)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.053
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     289
_refine_ls_number_reflns         4898
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.053
_refine_ls_R_factor_all          0.0712
_refine_ls_R_factor_gt           0.0497
_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^)+(0.0888P)^2^+0.4330P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1270
_refine_ls_wR_factor_ref         0.1434
_reflns_number_gt                3750
_reflns_number_total             4898
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol5b02132_si_001.cif
_cod_data_source_block           ABfluor
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Rhombohedral' changed to
'rhombohedral' according to
/usr/data/users/saulius/crontab/automatic-downloads/current/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 3271 2015-04-21 07:52:19Z andrius 
;
_cod_original_cell_volume        5439.2(15)
_cod_original_sg_symbol_H-M      R3
_cod_database_code               1534101