Remote Substituent Effects and Regioselective Enhancement of Electrophilic Substitutions in Helical Aromatic Oligoamides
Kolupula Srinivas; Brice Kauffmann; Christel Dolain; Jean-Michel Léger; Léon Ghosez; Ivan Huc; Journal of the American Chemical Society 130 (2008) 13210–13211; doi:10.1021/ja805178j

data_4108439
_publ_section_title
;
 Remote Substituent Effects and Regioselective Enhancement of
 Electrophilic Substitutions in Helical Aromatic Oligoamides
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              13210
_journal_page_last               13211
_journal_paper_doi               10.1021/ja805178j
_journal_volume                  130
_journal_year                    2008
_chemical_formula_sum            'C118 H114.5 Br1.25 Cl7 N16 O19'
_chemical_formula_weight         2408.79
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 102.87(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   15.592(3)
_cell_length_b                   29.122(6)
_cell_length_c                   26.198(5)
_cell_measurement_temperature    100(2)
_cell_volume                     11597(4)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXD-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.894
_diffrn_measured_fraction_theta_max 0.894
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0207
_diffrn_reflns_av_sigmaI/netI    0.0345
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       29
_diffrn_reflns_limit_k_min       -29
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            20622
_diffrn_reflns_theta_full        50.43
_diffrn_reflns_theta_max         50.43
_diffrn_reflns_theta_min         2.30
_exptl_absorpt_coefficient_mu    2.679
_exptl_crystal_density_diffrn    1.380
_exptl_crystal_F_000             4997
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.2
_refine_diff_density_max         1.818
_refine_diff_density_min         -1.806
_refine_diff_density_rms         0.101
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.030
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1478
_refine_ls_number_reflns         10847
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.033
_refine_ls_R_factor_all          0.1231
_refine_ls_R_factor_gt           0.1024
_refine_ls_shift/su_max          0.080
_refine_ls_shift/su_mean         0.016
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1541P)^2^+150.9259P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2731
_refine_ls_wR_factor_ref         0.2948
_reflns_number_gt                8805
_reflns_number_total             10847
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja805178j_si_005.cif
_cod_data_source_block           sk14b
_cod_original_formula_sum        'C118 H114.50 Br1.25 Cl7 N16 O19'
_cod_database_code               4108439