Directed Assembly of Chiral Oxidovanadium(V) Methoxides into C4-Symmetric Metal(I) Vanadate-Centered Quadruplexes: Synergistic K± and Ag±specific Transport
Chien-Tien Chen; Ya-Hui Lin; Ting-Shen Kuo; Journal of the American Chemical Society 130 (2008) 12842–12843; doi:10.1021/ja8051552

data_4108405
_publ_section_title
;
 Directed Assembly of Chiral Oxidovanadium(V) Methoxides into C4-Symmetric
 Metal(I) Vanadate-Centered Quadruplexes: Synergistic K+- and Ag+-specific
 Transport
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              12842
_journal_page_last               12843
_journal_paper_doi               10.1021/ja8051552
_journal_volume                  130
_journal_year                    2008
_chemical_absolute_configuration unk
_chemical_formula_moiety         'C52 H52 Cl8 Cs N4 O21 V5'
_chemical_formula_sum            'C52 H52 Cl8 Cs N4 O21 V5'
_chemical_formula_weight         1740.19
_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                 107.0630(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   15.2137(4)
_cell_length_b                   12.7086(3)
_cell_length_c                   21.7372(6)
_cell_measurement_reflns_used    0
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      0
_cell_measurement_theta_min      0
_cell_volume                     4017.78(18)
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1986)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_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  0.0342
_diffrn_reflns_av_sigmaI/netI    0.0588
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            30833
_diffrn_reflns_theta_full        25.03
_diffrn_reflns_theta_max         25.03
_diffrn_reflns_theta_min         0.98
_exptl_absorpt_coefficient_mu    1.334
_exptl_absorpt_correction_T_max  0.8894
_exptl_absorpt_correction_T_min  0.6175
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    1.438
_exptl_crystal_description       prism
_exptl_crystal_F_000             1732
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.450
_refine_diff_density_min         -0.667
_refine_diff_density_rms         0.113
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.022(13)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.973
_refine_ls_hydrogen_treatment    fixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     804
_refine_ls_number_reflns         13028
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      0.973
_refine_ls_R_factor_all          0.0570
_refine_ls_R_factor_gt           0.0419
_refine_ls_shift/su_max          0.029
_refine_ls_shift/su_mean         0.008
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0630P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1009
_refine_ls_wR_factor_ref         0.1066
_reflns_number_gt                10287
_reflns_number_total             13028
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja8051552_si_002_3.cif
_cod_data_source_block           a7284
_cod_original_sg_symbol_H-M      'P 21'
_cod_database_code               4108405