Spontaneous resolution of a 3D chiral polyoxometalate-based polythreaded framework consisting of an achiral ligand
Lan, Ya-Qian; Li, Shun-Li; Su, Zhong-Min; Shao, Kui-Zhan; Ma, Jian-Fang; Wang, Xin-Long; Wang, En-Bo; Chemical Communications (Cambridge, United Kingdom)  (2008) 58–60; doi:10.1039/b714413j

data_7102778
_publ_section_title
;
 Spontaneous resolution of a 3D chiral polyoxometalate-based polythreaded
 framework consisting of an achiral ligand
;
_journal_coden_ASTM              CHCOFS
_journal_issue                   1
_journal_name_full
;
 Chemical Communications (Cambridge, United Kingdom)
;
_journal_page_first              58
_journal_page_last               60
_journal_paper_doi               10.1039/b714413j
_journal_year                    2008
_chemical_formula_sum            'C40 H58 Cu3 N16 O27 V10'
_chemical_formula_weight         1895.04
_space_group_IT_number           23
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'I 2 2'
_symmetry_space_group_name_H-M   'I 2 2 2'
_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                   23.0670(14)
_cell_length_b                   23.1760(14)
_cell_length_c                   24.9480(14)
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      25.02
_cell_measurement_theta_min      1.2
_cell_volume                     13337.2(14)
_computing_cell_refinement       'SMART (Bruker, 1997)'
_computing_data_collection       'SMART (Bruker, 1997)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    'SHELXTL-PLUS (Sheldrick, 1990)'
_computing_publication_material  SHELXL-97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97(Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker APEX CCD area-detector'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0841
_diffrn_reflns_av_sigmaI/netI    0.0928
_diffrn_reflns_limit_h_max       27
_diffrn_reflns_limit_h_min       -27
_diffrn_reflns_limit_k_max       27
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            33818
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.02
_diffrn_reflns_theta_min         1.20
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.353
_exptl_absorpt_correction_T_max  0.582
_exptl_absorpt_correction_T_min  0.499
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS(Sheldrick, 1996)'
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    1.888
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             7544
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.23
_refine_diff_density_max         0.577
_refine_diff_density_min         -0.525
_refine_diff_density_rms         0.096
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.02(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.006
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     801
_refine_ls_number_reflns         11790
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.006
_refine_ls_R_factor_all          0.0868
_refine_ls_R_factor_gt           0.0549
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0512P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1107
_refine_ls_wR_factor_ref         0.1269
_reflns_number_gt                8234
_reflns_number_total             11790
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b714413j.txt
_cod_data_source_block           mm_right
_cod_original_sg_symbol_Hall     I22
_cod_original_sg_symbol_H-M      I222
_cod_database_code               7102778