The Supramolecular Isomerism Based on Argentophilic Interactions: The Construction of Helical Chains with Defined Right-Handed and Left-Handed Helicity
Xiao-Dan Zheng; Long Jiang; Xiao-Long Feng; Tong-Bu Lu; Inorganic Chemistry 47 (2008) 10858–10865; doi:10.1021/ic8009578

data_4306037
_publ_section_title
;
The Supramolecular Isomerism Based on Argentophilic Interactions: The
Construction of Helical Chains with Defined Right-Handed and Left-Handed
Helicity
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              10858
_journal_page_last               10865
_journal_paper_doi               10.1021/ic8009578
_journal_volume                  47
_journal_year                    2008
_chemical_absolute_configuration rm
_chemical_formula_sum            'C40 H76 Ag4 N16 Ni2 O2'
_chemical_formula_weight         1362.07
_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                 96.916(9)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   10.294(5)
_cell_length_b                   13.873(7)
_cell_length_c                   19.466(10)
_cell_measurement_reflns_used    3218
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.33
_cell_measurement_theta_min      3.42
_cell_volume                     2760(2)
_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      173(2)
_diffrn_measured_fraction_theta_full 0.961
_diffrn_measured_fraction_theta_max 0.961
_diffrn_measurement_device_type  'multiwire proportional'
_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  0.0661
_diffrn_reflns_av_sigmaI/netI    0.1911
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            9527
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.81
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.106
_exptl_absorpt_correction_T_max  0.7861
_exptl_absorpt_correction_T_min  0.5613
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1996)'
_exptl_crystal_colour            purple
_exptl_crystal_density_diffrn    1.639
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1376
_exptl_crystal_size_max          0.31
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.12
_refine_diff_density_max         1.205
_refine_diff_density_min         -1.321
_refine_diff_density_rms         0.187
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.02(4)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.000
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     589
_refine_ls_number_reflns         7734
_refine_ls_number_restraints     169
_refine_ls_restrained_S_all      0.994
_refine_ls_R_factor_all          0.1375
_refine_ls_R_factor_gt           0.0602
_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^)+(0.0213P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0879
_refine_ls_wR_factor_ref         0.1076
_reflns_number_gt                4244
_reflns_number_total             7734
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic8009578_si_002_4.cif
_cod_data_source_block           /L-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_enum 1527 2010-12-29 10:47:43Z saulius 
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_cod_database_code               4306037