A solvent-free regioselective iodination route of ortho-carboranes.
Vaca, Albert; Teixidor, Francesc; Kivekäs, Raikko; Sillanpää, Reijo; Viñas, Clara; Dalton transactions (Cambridge, England : 2003)  (2006) 4884–4885; doi:10.1039/b612465h

data_7007884
_publ_section_title
;
 A solvent-free regioselective iodination route of ortho-carboranes.
;
_journal_issue                   41
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              4884
_journal_page_last               4885
_journal_paper_doi               10.1039/b612465h
_journal_year                    2006
_chemical_formula_moiety         'C2 H8 B10 I4'
_chemical_formula_sum            'C2 H8 B10 I4'
_chemical_formula_weight         647.78
_chemical_name_systematic
;
?
;
_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                 110.378(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   15.0422(5)
_cell_length_b                   14.8814(5)
_cell_length_c                   14.3581(5)
_cell_measurement_reflns_used    6090
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      28.7
_cell_measurement_theta_min      0.407
_cell_volume                     3012.90(18)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Nonius BV, 1997-2000)'
_computing_data_reduction
;
HKL Denzo and Scalepack (Otwinowski & Minor 1997)
;
_computing_molecular_graphics    'SHELXTL/PC (Sheldrick, 1990)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device       '95mm CCD camera on \k-goniostat'
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       'CCD rotation images, thick slices'
_diffrn_radiation_monochromator  'horizonally mounted graphite crystal'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           Mok\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0581
_diffrn_reflns_av_sigmaI/netI    0.0731
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            18481
_diffrn_reflns_theta_full        27.00
_diffrn_reflns_theta_max         27.00
_diffrn_reflns_theta_min         1.44
_diffrn_source                   'Enraf Nonius FR590'
_diffrn_standards_decay_%        <1
_exptl_absorpt_coefficient_mu    8.235
_exptl_absorpt_correction_T_max  0.6927
_exptl_absorpt_correction_T_min  0.3265
_exptl_absorpt_correction_type   refdelf
_exptl_absorpt_process_details
;
Sheldrick, G.M. (anon) SHELX97 Release 97-2 (1998)
I/sigma threshold for reflections = 5.000
Delta(U)/lambda**2 = 0.000
Highest even order spherical harmonic = 6
Highest odd order spherical harmonic = 3
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    2.856
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             2256
_exptl_crystal_size_max          0.16
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.04
_refine_diff_density_max         3.121
_refine_diff_density_min         -1.874
_refine_diff_density_rms         0.233
_refine_ls_extinction_coef       0.00018(3)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.049
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     290
_refine_ls_number_reflns         6563
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.049
_refine_ls_R_factor_all          0.0814
_refine_ls_R_factor_gt           0.0417
_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^)+(0.0371P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0855
_refine_ls_wR_factor_ref         0.0930
_reflns_number_gt                4452
_reflns_number_total             6563
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b612465h.txt
_cod_data_source_block           compound_1
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7007884
_exptl_absorpt_factor_mur        0.000
_exptl_absorpt_rmerge_before     0.0804
_exptl_absorpt_rmerge_after      0.0389