Polyoxometalatocyclophanes: Controlled Assembly of Polyoxometalate-Based Chiral Metallamacrocycles from Achiral Building Blocks
Fengping Xiao; Jian Hao; Jin Zhang; Chunlin Lv; Panchao Yin; Longsheng Wang; Yongge Wei; Journal of the American Chemical Society 132 (2010) 5956–5957; doi:10.1021/ja101671q

data_4102367
_publ_contact_author_address
;
Department of Chemistry
Tsinghua University
Beijing 100084
P. R. China
;
_publ_contact_author_email       yonggewei@mail.tsinghua.edu.cn
_publ_contact_author_name        'Dr Yongge Wei'
_publ_section_title
;
 Polyoxometalatocyclophanes: Controlled Assembly of Polyoxometalate-Based
 Chiral Metallamacrocycles from Achiral Building Blocks
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              5956
_journal_page_last               5957
_journal_paper_doi               10.1021/ja101671q
_journal_volume                  132
_journal_year                    2010
_chemical_formula_sum            'C50 H92 Mo6 N4 O19'
_chemical_formula_weight         1628.92
_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                 106.91(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   11.798(2)
_cell_length_b                   16.642(3)
_cell_length_c                   17.248(3)
_cell_measurement_reflns_used    29459
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      27.44
_cell_measurement_theta_min      3.04
_cell_volume                     3240.1(11)
_computing_cell_refinement       'Rigaku RAPID AUTO Ver2.30'
_computing_data_collection       'Rigaku RAPID AUTO Ver2.30'
_computing_data_reduction        'Rigaku RAPID AUTO Ver2.30'
_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      296(2)
_diffrn_detector_area_resol_mean '100x100 micron'
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Rigaku RAXIS-RAPID'
_diffrn_measurement_method       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  0.0226
_diffrn_reflns_av_sigmaI/netI    0.0330
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            31729
_diffrn_reflns_theta_full        27.44
_diffrn_reflns_theta_max         27.44
_diffrn_reflns_theta_min         3.04
_exptl_absorpt_coefficient_mu    1.193
_exptl_absorpt_correction_T_max  0.6468
_exptl_absorpt_correction_T_min  0.5346
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.670
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1648
_exptl_crystal_size_max          0.60
_exptl_crystal_size_mid          0.50
_exptl_crystal_size_min          0.40
_refine_diff_density_max         0.619
_refine_diff_density_min         -0.492
_refine_diff_density_rms         0.057
_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   1.049
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     719
_refine_ls_number_reflns         14624
_refine_ls_number_restraints     142
_refine_ls_restrained_S_all      1.069
_refine_ls_R_factor_all          0.0312
_refine_ls_R_factor_gt           0.0282
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0404P)^2^+0.2564P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0698
_refine_ls_wR_factor_ref         0.0717
_reflns_number_gt                13569
_reflns_number_total             14624
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja101671q_si_002_2.cif
_cod_data_source_block           2p
_cod_original_sg_symbol_H-M      'P 21'
_cod_database_code               4102367