Spontaneous resolution through helical association of a Cu-azamacrocyclic complex with Lindqvist-type isopolyanion.
Sarma, Monima; Chatterjee, Tanmay; Vindhya, Hanumanthugari; Das, Samar K.; Dalton transactions (Cambridge, England : 2003) 41 (2012) 1862–1866; doi:10.1039/c1dt11987g

data_7018025
_publ_section_title
;
 Spontaneous resolution through helical association of a Cu-azamacrocyclic
 complex with Lindqvist-type isopolyanion.
;
_journal_issue                   6
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              1862
_journal_page_last               1866
_journal_paper_doi               10.1039/c1dt11987g
_journal_volume                  41
_journal_year                    2012
_chemical_formula_moiety         'C18 H35 Cu N5, O19 W6'
_chemical_formula_sum            'C18 H35 Cu N5 O19 W6'
_chemical_formula_weight         1792.15
_chemical_name_systematic
;
?
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 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            4
_cell_length_a                   11.0347(10)
_cell_length_b                   15.0878(13)
_cell_length_c                   20.7320(18)
_cell_measurement_reflns_used    6643
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      24.94
_cell_measurement_theta_min      2.29
_cell_volume                     3451.7(5)
_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  'Bruker SHELXTL'
_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'CCD area detector'
_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  0.0523
_diffrn_reflns_av_sigmaI/netI    0.0371
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            33303
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.67
_exptl_absorpt_coefficient_mu    20.596
_exptl_absorpt_correction_T_max  0.1913
_exptl_absorpt_correction_T_min  0.0928
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   Bruker-SADABS
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    3.449
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             3212
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.919
_refine_diff_density_min         -1.545
_refine_diff_density_rms         0.306
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.016(12)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.076
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     449
_refine_ls_number_reflns         6070
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.076
_refine_ls_R_factor_all          0.0250
_refine_ls_R_factor_gt           0.0238
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0250P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0559
_refine_ls_wR_factor_ref         0.0564
_reflns_number_gt                5893
_reflns_number_total             6070
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c1dt11987g.txt
_cod_data_source_block           Cu-TDE-W6(1M)
_cod_database_code               7018025