Supramolecular assemblies prepared from an iron(ii) tripodal imidazole complex. A molecular scaffolding for the self assembly of icosahedral complexes of K+, Rb+, Cs+ and NH4+ cations
Brewer, Greg; Butcher, Ray J.; Viragh, Carol; White, Genevieve; Dalton Transactions  (2007) 4132–; doi:10.1039/b704823h

data_7005712
_publ_section_title
;
 Supramolecular assemblies prepared from an iron(ii) tripodal imidazole
 complex. A molecular scaffolding for the self assembly of icosahedral
 complexes of K+, Rb+, Cs+ and NH4+ cations
;
_journal_issue                   37
_journal_name_full               'Dalton Transactions'
_journal_page_first              4132
_journal_paper_doi               10.1039/b704823h
_journal_year                    2007
_chemical_formula_sum            'C18 H24 Cl3 Fe N10 O12 Rb'
_chemical_formula_weight         820.14
_space_group_IT_number           147
_symmetry_cell_setting           trigonal
_symmetry_space_group_name_Hall  '-P 3'
_symmetry_space_group_name_H-M   'P -3'
_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            2
_cell_length_a                   13.4744(8)
_cell_length_b                   13.4744(8)
_cell_length_c                   9.3487(11)
_cell_measurement_reflns_used    8229
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      30.44
_cell_measurement_theta_min      2.79
_cell_volume                     1469.9(2)
_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  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.943
_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  0.0237
_diffrn_reflns_av_sigmaI/netI    0.0174
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            16933
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         30.83
_diffrn_reflns_theta_min         2.18
_exptl_absorpt_coefficient_mu    2.508
_exptl_absorpt_correction_T_max  0.5008
_exptl_absorpt_correction_T_min  0.3445
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   Sadabs
_exptl_crystal_colour            translucent
_exptl_crystal_density_diffrn    1.853
_exptl_crystal_density_meas      0
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       chunk
_exptl_crystal_F_000             824
_exptl_crystal_size_max          0.54
_exptl_crystal_size_mid          0.45
_exptl_crystal_size_min          0.32
_refine_diff_density_max         0.356
_refine_diff_density_min         -0.398
_refine_diff_density_rms         0.055
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.039
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     141
_refine_ls_number_reflns         2919
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.039
_refine_ls_R_factor_all          0.0292
_refine_ls_R_factor_gt           0.0233
_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^)+(0.0286P)^2^+0.6681P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0571
_refine_ls_wR_factor_ref         0.0595
_reflns_number_gt                2567
_reflns_number_total             2919
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b704823h.txt
_cod_data_source_block           gw72bm
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Trigonal' changed to 'trigonal' according
to '/home/saulius/struct/CIF-dictionaries/cif_core.dic' dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_refine_ls_hydrogen_treatment' value 'constrained' was replaced with
the value 'constr' as specified in the replacement file
'src/cod-tools/trunk/data/replacement-values/replacement_values.lst'.

Automatic conversion script
Id: cif_fix_values 5376 2017-05-30 11:51:03Z andrius 
;
_cod_original_sg_symbol_H-M      P-3
_cod_database_code               7005712