Bio-inspired Herringbone Foldamers: Strategy for Changing the Structure of Helices.
Adam, Abdulselam; Haberhauer, Gebhard; Wölper, Christoph; The Journal of organic chemistry 82 (2017) 4203–4215; doi:10.1021/acs.joc.7b00185

data_4032440
_publ_section_title
;
 Bio-inspired Herringbone Foldamers: Strategy for Changing the Structure
 of Helices.
;
_journal_issue                   8
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              4203
_journal_page_last               4215
_journal_paper_doi               10.1021/acs.joc.7b00185
_journal_volume                  82
_journal_year                    2017
_chemical_formula_moiety         'C39 H39 N9 O3'
_chemical_formula_sum            'C39 H39 N9 O3'
_chemical_formula_weight         681.79
_space_group_IT_number           148
_symmetry_cell_setting           trigonal
_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            6
_cell_length_a                   14.2403(3)
_cell_length_b                   14.2403(3)
_cell_length_c                   32.6696(9)
_cell_measurement_reflns_used    7833
_cell_measurement_temperature    200(1)
_cell_measurement_theta_max      27.51
_cell_measurement_theta_min      2.86
_cell_volume                     5737.4(2)
_computing_cell_refinement       'BRUKER D8 KAPPA APEX 2 Vers. 3.0-2009'
_computing_data_collection       'BRUKER D8 KAPPA APEX 2 Vers. 3.0-2009'
_computing_data_reduction        'BRUKER D8 KAPPA APEX 2 Vers. 3.0-2009'
_computing_molecular_graphics    'BRUKER AXS SHELXTL (c) 2008 / Vers. 2008/4'
_computing_publication_material  'BRUKER AXS SHELXTL (c) 2008 / Vers. 2008/4'
_computing_structure_refinement  'BRUKER AXS SHELXTL (c) 2008 / Vers. 2008/4'
_computing_structure_solution    'BRUKER D8 KAPPA APEX 2 Vers. 3.0-2009'
_diffrn_ambient_temperature      200(1)
_diffrn_detector_area_resol_mean 512
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type
; 
 Bruker D8 KAPPA series II with APEX II area detector system
;
_diffrn_measurement_method
;
 Data collection strategy APEX 2/COSMO
;
_diffrn_radiation_monochromator  'Triumph Goebel mirror'
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0249
_diffrn_reflns_av_sigmaI/netI    0.0213
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       42
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            17966
_diffrn_reflns_theta_full        27.53
_diffrn_reflns_theta_max         27.53
_diffrn_reflns_theta_min         1.76
_exptl_absorpt_coefficient_mu    0.078
_exptl_absorpt_correction_T_max  0.75
_exptl_absorpt_correction_T_min  0.64
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
 BRUKER AXS SMART APEX 2 Vers. 3.0-2009
 R.H. Blessing, Acta Cryst. (1995) A51 33-38 
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.184
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2160
_exptl_crystal_size_max          0.17
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.13
_refine_diff_density_max         0.246
_refine_diff_density_min         -0.186
_refine_diff_density_rms         0.034
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.034
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     154
_refine_ls_number_reflns         2931
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.034
_refine_ls_R_factor_all          0.0672
_refine_ls_R_factor_gt           0.0477
_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^)+(0.0699P)^2^+2.3246P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1245
_refine_ls_wR_factor_ref         0.1321
_reflns_number_gt                2112
_reflns_number_total             2931
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo7b00185_si_002.cif
_cod_data_source_block           hab_9ndx
_cod_depositor_comments
'Adding full bibliography for 4032437--4032440.cif.'
_cod_original_sg_symbol_H-M      R-3
_cod_database_code               4032440