Design, synthesis and characterization of self-assembled As(2)L(3) and Sb(2)L(3) cryptands.
Fontenot, Sean A.; Cangelosi, Virginia M.; Pitt, Melanie A. W.; Sather, Aaron C.; Zakharov, Lev N.; Berryman, Orion B.; Johnson, Darren W.; Dalton transactions (Cambridge, England : 2003) 40 (2011) 12125–12131; doi:10.1039/c1dt10817d

data_7017243
_publ_section_title
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 Design, synthesis and characterization of self-assembled As(2)L(3) and
 Sb(2)L(3) cryptands.
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_journal_issue                   45
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              12125
_journal_page_last               12131
_journal_paper_doi               10.1039/c1dt10817d
_journal_volume                  40
_journal_year                    2011
_chemical_formula_sum            'C37.25 H31.38 Cl3 N0.13 S6 Sb2'
_chemical_formula_weight         1022.96
_chemical_name_systematic
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?
;
_space_group_IT_number           148
_symmetry_cell_setting           rhombohedral
_symmetry_space_group_name_Hall  '-P 3*'
_symmetry_space_group_name_H-M   'R -3 :R'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXLTL
_cell_angle_alpha                69.14
_cell_angle_beta                 69.14
_cell_angle_gamma                69.14
_cell_formula_units_Z            8
_cell_length_a                   21.0255(7)
_cell_length_b                   21.0255(7)
_cell_length_c                   21.0255(7)
_cell_measurement_reflns_used    6306
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      22.68
_cell_measurement_theta_min      2.35
_cell_volume                     7831.4(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      173(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'CCD area detector Bruker Apex'
_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  0.0556
_diffrn_reflns_av_sigmaI/netI    0.0352
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       -26
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            88616
_diffrn_reflns_theta_full        27.00
_diffrn_reflns_theta_max         27.00
_diffrn_reflns_theta_min         1.71
_exptl_absorpt_coefficient_mu    1.932
_exptl_absorpt_correction_T_max  0.8607
_exptl_absorpt_correction_T_min  0.7474
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.735
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       cut-block
_exptl_crystal_F_000             4038
_exptl_crystal_size_max          0.16
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.08
_refine_diff_density_max         1.900
_refine_diff_density_min         -1.630
_refine_diff_density_rms         0.130
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.370
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     577
_refine_ls_number_reflns         11413
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.370
_refine_ls_R_factor_all          0.0810
_refine_ls_R_factor_gt           0.0633
_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^)+(0.0900P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1789
_refine_ls_wR_factor_ref         0.1886
_reflns_number_gt                9195
_reflns_number_total             11413
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c1dt10817d.txt
_cod_data_source_block           g44p
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Rhombohedral' changed to
'rhombohedral' 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_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      R-3
_cod_database_code               7017243