2D layered supramolecular host system derived from a 21-helical column, composed of 1,2-diphenylethylenediamine and N-phenyliminodiacetic acid.
Imai, Yoshitane; Murata, Katuzo; Sato, Tomohiro; Kuroda, Reiko; Matsubara, Yoshio; Organic letters 10 (2008) 3821–3824; doi:10.1021/ol801374g

data_1504832
_publ_section_title
;
 2D layered supramolecular host system derived from a 21-helical column,
 composed of 1,2-diphenylethylenediamine and N-phenyliminodiacetic acid.
;
_journal_issue                   17
_journal_name_full               'Organic letters'
_journal_page_first              3821
_journal_page_last               3824
_journal_paper_doi               10.1021/ol801374g
_journal_volume                  10
_journal_year                    2008
_chemical_absolute_configuration rm
_chemical_formula_sum            'C25.25 H32 N3 O5.25'
_chemical_formula_weight         461.54
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 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                 97.5940(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.5997(7)
_cell_length_b                   10.0573(7)
_cell_length_c                   23.8770(17)
_cell_measurement_reflns_used    8334
_cell_measurement_temperature    130(2)
_cell_measurement_theta_max      27.88
_cell_measurement_theta_min      1.72
_cell_volume                     2523.1(3)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      130(2)
_diffrn_measured_fraction_theta_full 0.961
_diffrn_measured_fraction_theta_max 0.961
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       '\w scans'
_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  0.0276
_diffrn_reflns_av_sigmaI/netI    0.0558
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            15782
_diffrn_reflns_theta_full        27.88
_diffrn_reflns_theta_max         27.88
_diffrn_reflns_theta_min         1.72
_exptl_absorpt_coefficient_mu    0.086
_exptl_absorpt_correction_T_max  0.9915
_exptl_absorpt_correction_T_min  0.9625
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'Bruker SADABS'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.215
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             986
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.687
_refine_diff_density_min         -0.297
_refine_diff_density_rms         0.054
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   1.1(11)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.052
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     608
_refine_ls_number_reflns         9679
_refine_ls_number_restraints     11
_refine_ls_restrained_S_all      1.091
_refine_ls_R_factor_all          0.0745
_refine_ls_R_factor_gt           0.0636
_refine_ls_shift/su_max          0.015
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0754P)^2^+0.8711P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1476
_refine_ls_wR_factor_ref         0.1549
_reflns_number_gt                8334
_reflns_number_total             9679
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol801374g_si_002.cif
_cod_data_source_block           imai86_2
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      P2(1)
_cod_original_formula_sum        'C50.50 H64 N6 O10.50'
_cod_database_code               1504832