Unfairly Forgotten Member of the Iodocarborane Family: Synthesis and Structural Characterization of 8-Iodo-1,2-dicarba-closo-dodecaborane, Its Precursors, and Derivatives.
Alexander V. Safronov; Yulia V. Sevryugina; Satish S. Jalisatgi; Robert D. Kennedy; Charles L. Barnes; M. Frederick Hawthorne; Inorganic Chemistry 51 (2012) 2629–2637; doi:10.1021/ic2025846

data_4328434
_publ_section_title
;
 Unfairly Forgotten Member of the Iodocarborane Family: Synthesis and
 Structural Characterization of 8-Iodo-1,2-dicarba-closo-dodecaborane, Its
 Precursors, and Derivatives.
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              2629
_journal_page_last               2637
_journal_paper_doi               10.1021/ic2025846
_journal_volume                  51
_journal_year                    2012
_chemical_formula_moiety
;
 [B10 C2 H10] (I) (C O2 C2 H5) 
;
_chemical_formula_sum            'C5 H15 B10 I O2'
_chemical_formula_weight         342.17
_chemical_name_systematic
; 
 1-ethoxycarbonyl-8-iodo-1,2-dicarba-closo-dodecaborane(10) 
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                67.186(1)
_cell_angle_beta                 88.539(1)
_cell_angle_gamma                80.278(1)
_cell_formula_units_Z            2
_cell_length_a                   6.5718(5)
_cell_length_b                   10.5450(8)
_cell_length_c                   11.1081(8)
_cell_measurement_reflns_used    5190
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.09
_cell_measurement_theta_min      2.28
_cell_volume                     698.70(9)
_computing_cell_refinement       'SMART, SAINT'
_computing_data_collection       SMART
_computing_data_reduction        SAINT
_computing_molecular_graphics    'SHELXP-01 (Sheldrick, 2001)'
_computing_publication_material  'SHELXCIF-01 (Sheldrick, 2001)'
_computing_structure_refinement  'SHELXL-01 (Sheldrick, 2001)'
_computing_structure_solution    'SHELXS-01 (Sheldrick, 2001)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.980
_diffrn_measured_fraction_theta_max 0.980
_diffrn_measurement_device_type  'Bruker SMART APEX CCD'
_diffrn_measurement_method       '0.3 deg wide \w exposures'
_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  0.0211
_diffrn_reflns_av_sigmaI/netI    0.0279
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            6109
_diffrn_reflns_theta_full        27.13
_diffrn_reflns_theta_max         27.13
_diffrn_reflns_theta_min         1.99
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count na
_diffrn_standards_interval_time  na
_diffrn_standards_number         'none (area detector data)'
_exptl_absorpt_coefficient_mu    2.269
_exptl_absorpt_correction_T_max  0.84
_exptl_absorpt_correction_T_min  0.62
_exptl_absorpt_correction_type   'multi-scan (SADABS)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.626
_exptl_crystal_density_method    none
_exptl_crystal_description       needle
_exptl_crystal_F_000             328
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.581
_refine_diff_density_min         -0.242
_refine_diff_density_rms         0.074
_refine_ls_extinction_coef       noref
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.066
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     223
_refine_ls_number_reflns         3043
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.066
_refine_ls_R_factor_all          0.0240
_refine_ls_R_factor_gt           0.0210
_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^+0.0544P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0517
_refine_ls_wR_factor_ref         0.0530
_reflns_number_gt                2806
_reflns_number_total             3043
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic2025846_si_001_4.cif
_cod_data_source_block           '[B10C2H10](8-I)(1-COOEt)_(10)'
_cod_database_code               4328434