Solid state anion-π interactions involving polyhalides.
Giese, Michael; Albrecht, Markus; Bohnen, Christian; Repenko, Tatjana; Valkonen, Arto; Rissanen, Kari; Dalton transactions (Cambridge, England : 2003) 43 (2014) 1873–1880; doi:10.1039/c3dt52960f

data_7028396
_publ_section_title
;
 Solid state anion-\p interactions involving polyhalides.
;
_journal_issue                   4
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              1873
_journal_page_last               1880
_journal_paper_doi               10.1039/c3dt52960f
_journal_volume                  43
_journal_year                    2014
_chemical_formula_moiety         'C20 H20 F10 N2, 2(I3)'
_chemical_formula_sum            'C20 H20 F10 I6 N2'
_chemical_formula_weight         1239.78
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 102.305(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   13.7486(6)
_cell_length_b                   8.7173(4)
_cell_length_c                   13.7027(6)
_cell_measurement_reflns_used    4117
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      28.283
_cell_measurement_theta_min      0.407
_cell_volume                     1604.55(12)
_computing_cell_refinement       'DENZO-SMN (Otwinowski & Minor, 1997)'
_computing_data_collection       'Collect (Bruker, 2008)'
_computing_data_reduction        DENZO-SMN
_computing_molecular_graphics
'ORTEP-3 (Farrugia, 1997); MERCURY (Macrae, <i>et al.</i>, 2008)'
_computing_publication_material  SHELXL-97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SIR-2004 (Burla, et al., 2005)'
_diffrn_ambient_temperature      123(2)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker-Nonius Kappa CCD with APEXII detector'
_diffrn_measurement_method       '\f and \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  0.0280
_diffrn_reflns_av_sigmaI/netI    0.0446
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            5128
_diffrn_reflns_theta_full        25.25
_diffrn_reflns_theta_max         25.25
_diffrn_reflns_theta_min         2.79
_exptl_absorpt_coefficient_mu    5.880
_exptl_absorpt_correction_T_max  0.8915
_exptl_absorpt_correction_T_min  0.2548
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sadabs (Sheldrick, 1996)'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    2.566
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1124
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.02
_refine_diff_density_max         1.076
_refine_diff_density_min         -0.912
_refine_diff_density_rms         0.147
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.075
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     172
_refine_ls_number_reflns         2917
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.075
_refine_ls_R_factor_all          0.0485
_refine_ls_R_factor_gt           0.0371
_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^)+(0.0000P)^2^+9.4453P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0718
_refine_ls_wR_factor_ref         0.0755
_reflns_number_gt                2434
_reflns_number_total             2917
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            c3dt52960f.txt
_cod_data_source_block           6
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               7028396