Diastereoselective preparation of Cu(i) and Ag(i) double helices by the use of chiral bis-bipyridine ligands
Perret-Aebi, Laure-Emmanuelle; von Zelewsky, Alexander; Neels, Antonia; New Journal of Chemistry 33 (2009) 462–; doi:10.1039/b817610h

data_7053770
_publ_section_title
;
 Diastereoselective preparation of Cu(i) and Ag(i) double helices by the
 use of chiral bis-bipyridine ligands
;
_journal_issue                   3
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              462
_journal_paper_doi               10.1039/b817610h
_journal_volume                  33
_journal_year                    2009
_chemical_absolute_configuration yes
_chemical_formula_sum            'C89 H93.5 Ag2 F12 N10.5 O P2'
_chemical_formula_weight         1831.92
_chemical_name_systematic
;
?
;
_space_group_IT_number           20
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'C 2c 2'
_symmetry_space_group_name_H-M   'C 2 2 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   16.4766(11)
_cell_length_b                   27.872(2)
_cell_length_c                   36.378(3)
_cell_measurement_reflns_used    8000
_cell_measurement_temperature    153(2)
_cell_measurement_theta_max      21.00
_cell_measurement_theta_min      1.15
_cell_volume                     16706(2)
_computing_cell_refinement       'CELL, Stoe & Cie Company, Germany'
_computing_data_collection       'EXPOSE, Stoe & Cie Company, Germany'
_computing_data_reduction        'INTEGRATE, Stoe & Cie Company, Germany'
_computing_molecular_graphics    'PLATON99 (Spek, 1990)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      153(2)
_diffrn_detector_area_resol_mean 0.992\%A
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'IPDS, Stoe & Cie Company, Germany'
_diffrn_measurement_method       'phi oscillation'
_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  0.2041
_diffrn_reflns_av_sigmaI/netI    0.1547
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       35
_diffrn_reflns_limit_l_min       -35
_diffrn_reflns_number            32090
_diffrn_reflns_theta_full        20.00
_diffrn_reflns_theta_max         20.00
_diffrn_reflns_theta_min         1.44
_diffrn_standards_decay_%        0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.588
_exptl_absorpt_correction_T_max  0.510
_exptl_absorpt_correction_T_min  0.068
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'DIFABS (PLATON99, Spek, 1990)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.457
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             7528
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.929
_refine_diff_density_min         -0.909
_refine_diff_density_rms         0.173
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.01(9)
_refine_ls_extinction_coef       0.00111(18)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.125
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     556
_refine_ls_number_reflns         7803
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.125
_refine_ls_R_factor_all          0.1541
_refine_ls_R_factor_gt           0.1196
_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^)+(0.2000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.3141
_refine_ls_wR_factor_ref         0.3372
_reflns_number_gt                5039
_reflns_number_total             7803
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b817610hsup1.cif
_cod_data_source_block           complex3
_cod_depositor_comments
;
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        'C89 H93.50 Ag2 F12 N10.50 O P2'
_cod_database_code               7053770