Diastereoselectivity in the self-assembly of As2L2Cl2 macrocycles is directed by the As-pi interaction.
Cangelosi, Virginia M.; Sather, Aaron C.; Zakharov, Lev N.; Berryman, Orion B.; Johnson, Darren W.; Inorganic chemistry 46 (2007) 9278–9284; doi:10.1021/ic701290h

data_4339013
_publ_section_title
;
 Diastereoselectivity in the self-assembly of As2L2Cl2 macrocycles is
 directed by the As-pi interaction.
;
_journal_issue                   22
_journal_name_full               'Inorganic chemistry'
_journal_page_first              9278
_journal_page_last               9284
_journal_paper_doi               10.1021/ic701290h
_journal_volume                  46
_journal_year                    2007
_chemical_formula_sum            'C24 H20 As2 Cl2 S4'
_chemical_formula_weight         657.38
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_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                 106.817(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   6.3949(13)
_cell_length_b                   19.675(4)
_cell_length_c                   10.967(2)
_cell_measurement_reflns_used    2905
_cell_measurement_temperature    153(2)
_cell_measurement_theta_max      23.75
_cell_measurement_theta_min      2.84
_cell_volume                     1320.9(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  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      153(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  0.0264
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_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            10816
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         2.07
_exptl_absorpt_coefficient_mu    3.061
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.753
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.653
_exptl_crystal_density_meas      0
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Needle
_exptl_crystal_F_000             656
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.07
_refine_diff_density_max         1.210
_refine_diff_density_min         -0.705
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_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_parameters     145
_refine_ls_number_reflns         2322
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.053
_refine_ls_R_factor_all          0.0603
_refine_ls_R_factor_gt           0.0486
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0662P)^2^+2.5539P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1226
_refine_ls_wR_factor_ref         0.1314
_reflns_number_gt                1904
_reflns_number_total             2322
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic701290h-file003.cif
_cod_data_source_block           ginny1
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/automatic-downloads/retrospective/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 
;
_cod_original_cell_volume        1320.8(5)
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               4339013