Hydroxy-substituted oligopyridine dicarboxamide helical foldamers
Huc, Ivan; Maurizot, Victor; Gornitzka, Heinz; Léger, Jean-Michel; Chemical Communications  (2002) 578–; doi:10.1039/b111612f

data_7111197
_publ_section_title
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 Hydroxy-substituted oligopyridine dicarboxamide helical foldamers
;
_journal_issue                   6
_journal_name_full               'Chemical Communications'
_journal_page_first              578
_journal_paper_doi               10.1039/b111612f
_journal_year                    2002
_chemical_formula_sum            'C49 H53 N15 O16'
_chemical_formula_weight         1108.06
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_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           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 98.046(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.1333(19)
_cell_length_b                   25.805(3)
_cell_length_c                   14.0503(19)
_cell_measurement_reflns_used    6148
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      25.206
_cell_measurement_theta_min      2.368
_cell_volume                     5073.8(11)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.844
_diffrn_measured_fraction_theta_max 0.844
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0691
_diffrn_reflns_av_sigmaI/netI    0.0689
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       30
_diffrn_reflns_limit_k_min       -28
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            22683
_diffrn_reflns_theta_full        24.71
_diffrn_reflns_theta_max         24.71
_diffrn_reflns_theta_min         1.46
_exptl_absorpt_coefficient_mu    0.111
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.451
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             2320
_exptl_crystal_size_max          0.1
_exptl_crystal_size_mid          0.4
_exptl_crystal_size_min          0.4
_refine_diff_density_max         0.325
_refine_diff_density_min         -0.249
_refine_diff_density_rms         0.054
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.027
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     760
_refine_ls_number_reflns         7312
_refine_ls_number_restraints     27
_refine_ls_restrained_S_all      1.031
_refine_ls_R_factor_all          0.1117
_refine_ls_R_factor_gt           0.0629
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0535P)^2^+6.6494P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1403
_refine_ls_wR_factor_ref         0.1586
_reflns_number_gt                4529
_reflns_number_total             7312
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b111612fsup1.cif
_cod_data_source_block           2B
_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 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_cell_volume        5073.9(12)
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               7111197