Phenanthroline Dicarboxamide-Based Helical Foldamers: Stable Helical Structures in Methanol
Zhi-Qiang Hu; Hai-Yu Hu; Chuan-Feng Chen; Journal of Organic Chemistry 71 (2006) 1131–1138; doi:10.1021/jo052222r

data_4021452
_publ_section_title
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 Phenanthroline Dicarboxamide-Based Helical Foldamers:
 Stable Helical Structures in Methanol
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              1131
_journal_page_last               1138
_journal_paper_doi               10.1021/jo052222r
_journal_volume                  71
_journal_year                    2006
_chemical_formula_sum            'C64.5 H72 N8 O10.5'
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_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                110.655(6)
_cell_angle_beta                 92.140(6)
_cell_angle_gamma                104.819(6)
_cell_formula_units_Z            2
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_cell_length_b                   15.153(5)
_cell_length_c                   16.128(6)
_cell_measurement_reflns_used    864
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      0.00
_cell_measurement_theta_min      0.00
_cell_volume                     3068.5(19)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_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      293(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
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_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
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_diffrn_reflns_av_R_equivalents  0.0382
_diffrn_reflns_av_sigmaI/netI    0.0852
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            15976
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_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.50
_exptl_absorpt_coefficient_mu    0.084
_exptl_absorpt_correction_type   none
_exptl_crystal_density_diffrn    1.220
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             1198
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_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1458P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2060
_refine_ls_wR_factor_ref         0.2777
_reflns_number_gt                4520
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_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo052222rsi20051026_120229.cif
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_exptl_absorpt_correction_type' value 'NONE' changed to
'none' 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_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'NONE' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_formula_sum        'C64.50 H72 N8 O10.50'
_cod_database_code               4021452