Anion-Dependent Formation of Helicates versus Mesocates of Triple-Stranded M2L3 (M = Fe2+, Cu2+) Complexes
Fengjuan Cui; Shaoguang Li; Chuandong Jia; Jennifer S. Mathieson; Leroy Cronin; Xiao-Juan Yang; Biao Wu; Inorganic Chemistry 51 (2012) 179–187; doi:10.1021/ic201417y

data_4327753
_publ_section_title
;
 Anion-Dependent Formation of Helicates versus Mesocates of
 Triple-Stranded M2L3 (M = Fe2+, Cu2+) Complexes
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              179
_journal_page_last               187
_journal_paper_doi               10.1021/ic201417y
_journal_volume                  51
_journal_year                    2012
_chemical_formula_sum            'C231 H201 B6 Br Fe2 N24'
_chemical_formula_weight         3569.63
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           146
_symmetry_cell_setting           rhombohedral
_symmetry_space_group_name_Hall  'R 3'
_symmetry_space_group_name_H-M   'R 3 :H'
_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                120.00
_cell_formula_units_Z            3
_cell_length_a                   26.490(5)
_cell_length_b                   26.490(5)
_cell_length_c                   23.483(4)
_cell_measurement_reflns_used    4106
_cell_measurement_temperature    153(2)
_cell_measurement_theta_max      20.01
_cell_measurement_theta_min      2.48
_cell_volume                     14271(5)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART APEX II'
_computing_data_reduction        'Bruker SAINT'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      153(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker APEX II 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     0.71073
_diffrn_reflns_av_R_equivalents  0.0736
_diffrn_reflns_av_sigmaI/netI    0.1161
_diffrn_reflns_limit_h_max       31
_diffrn_reflns_limit_h_min       -31
_diffrn_reflns_limit_k_max       31
_diffrn_reflns_limit_k_min       -30
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            31011
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         1.24
_exptl_absorpt_coefficient_mu    0.426
_exptl_absorpt_correction_T_max  0.8480
_exptl_absorpt_correction_T_min  0.8152
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            Red
_exptl_crystal_density_diffrn    1.246
_exptl_crystal_description       Block
_exptl_crystal_F_000             5616
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.40
_refine_diff_density_max         0.389
_refine_diff_density_min         -0.288
_refine_diff_density_rms         0.048
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.022(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.979
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     798
_refine_ls_number_reflns         11121
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      0.979
_refine_ls_R_factor_all          0.1051
_refine_ls_R_factor_gt           0.0556
_refine_ls_shift/su_max          0.017
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0452P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1090
_refine_ls_wR_factor_ref         0.1288
_reflns_number_gt                7049
_reflns_number_total             11121
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic201417y_si_002_5.cif
_cod_data_source_block           LFeBrPh4
_cod_original_cell_volume        14271(4)
_cod_original_sg_symbol_H-M      'R 3'
_cod_database_code               4327753