Optically pure heterobimetallic helicates from self-assembly and click strategies.
Howson, Suzanne E.; Clarkson, Guy J.; Faulkner, Alan D.; Kaner, Rebecca A.; Whitmore, Michael J.; Scott, Peter; Dalton transactions (Cambridge, England : 2003) 42 (2013) 14967–14981; doi:10.1039/c3dt51725j

data_7023656
_publ_section_title
;
 Optically pure heterobimetallic helicates from self-assembly and click
 strategies.
;
_journal_issue                   42
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              14967
_journal_page_last               14981
_journal_paper_doi               10.1039/c3dt51725j
_journal_volume                  42
_journal_year                    2013
_chemical_absolute_configuration rmad
_chemical_formula_moiety         'C60 H57 Fe N9 O3, 2(Cl O4), C2 H3 N'
_chemical_formula_sum            'C62 H60 Cl2 Fe N10 O11'
_chemical_formula_weight         1247.95
_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                   16.98920(7)
_cell_length_b                   17.17527(6)
_cell_length_c                   19.71472(9)
_cell_measurement_reflns_used    43638
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      70.73
_cell_measurement_theta_min      3.41
_cell_volume                     5752.64(4)
_computing_cell_refinement       'CrysAlis RED, Oxford Diffraction Ltd'
_computing_data_collection       'CrysAlis CCD, Oxford Diffraction Ltd'
_computing_data_reduction        'CrysAlis RED, Oxford Diffraction Ltd'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 1997)'
_computing_publication_material  'SHELXTL (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 10.2833
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Oxford Diffraction Gemini R'
_diffrn_measurement_method       '\f & \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enhance (Mo) X-ray Source'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0323
_diffrn_reflns_av_sigmaI/netI    0.0195
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            73209
_diffrn_reflns_theta_full        70.86
_diffrn_reflns_theta_max         70.86
_diffrn_reflns_theta_min         3.41
_diffrn_standards_decay_%        nil
_exptl_absorpt_coefficient_mu    3.558
_exptl_absorpt_correction_T_max  1.00
_exptl_absorpt_correction_T_min  0.73
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'ABSPACK(CrysAlis, Oxford Diffraction)'
_exptl_crystal_colour            purple
_exptl_crystal_density_diffrn    1.441
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2600
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.40
_refine_diff_density_max         0.327
_refine_diff_density_min         -0.285
_refine_diff_density_rms         0.048
_refine_ls_abs_structure_details
'Flack H D (1983), Acta Cryst. A39, 876-881, 3952 Friedel pairs'
_refine_ls_abs_structure_Flack   0.0004(19)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.068
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     804
_refine_ls_number_reflns         11019
_refine_ls_number_restraints     69
_refine_ls_restrained_S_all      1.077
_refine_ls_R_factor_all          0.0304
_refine_ls_R_factor_gt           0.0298
_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^)+(0.0519P)^2^+1.5503P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0781
_refine_ls_wR_factor_ref         0.0784
_reflns_number_gt                10856
_reflns_number_total             11019
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3dt51725j.txt
_cod_data_source_block           rk6
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               7023656