Untethered 4,1,2-MC(2)B(10) supraicosahedral metallacarboranes, their C,C'-dimethyl 4,1,6-, 4,1,8- and 4,1,12-MC(2)B(10) analogues, and DFT study of the (4,)1,2- to (4,)1,6-isomerisations of C(2)B(11) carboranes and MC(2)B(10) metallacarboranes.
McAnaw, Amelia; Elena Lopez, Maria; Scott, Greig; Ellis, David; McKay, David; Rosair, Georgina M.; Welch, Alan J.; Dalton transactions (Cambridge, England : 2003) 41 (2012) 10957–10969; doi:10.1039/c2dt31283b

data_7020074
_publ_section_title
;
 Untethered 4,1,2-MC(2)B(10) supraicosahedral metallacarboranes, their
 C,C'-dimethyl 4,1,6-, 4,1,8- and 4,1,12-MC(2)B(10) analogues, and DFT
 study of the (4,)1,2- to (4,)1,6-isomerisations of C(2)B(11) carboranes
 and MC(2)B(10) metallacarboranes.
;
_journal_issue                   36
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              10957
_journal_page_last               10969
_journal_paper_doi               10.1039/c2dt31283b
_journal_volume                  41
_journal_year                    2012
_chemical_formula_moiety         'C9 H21 B10 Co'
_chemical_formula_sum            'C9 H21 B10 Co'
_chemical_formula_weight         296.29
_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
_audit_update_record
;
2011-09-16 # Formatted by publCIF
;
_cell_angle_alpha                90.00
_cell_angle_beta                 92.352(9)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.7995(11)
_cell_length_b                   12.886(2)
_cell_length_c                   14.7283(18)
_cell_measurement_reflns_used    41
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      20.56
_cell_measurement_theta_min      2.92
_cell_volume                     1479.0(4)
_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, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.981
_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  0.0681
_diffrn_reflns_av_sigmaI/netI    0.0576
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            68274
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         27.43
_diffrn_reflns_theta_min         2.10
_exptl_absorpt_coefficient_mu    1.134
_exptl_absorpt_correction_T_max  0.8951
_exptl_absorpt_correction_T_min  0.5261
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'TWINABS (Bruker, 2004)'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.331
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       PLATE
_exptl_crystal_F_000             608
_exptl_crystal_size_max          0.65
_exptl_crystal_size_mid          0.38
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.598
_refine_diff_density_min         -0.429
_refine_diff_density_rms         0.081
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.999
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     215
_refine_ls_number_reflns         5505
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.999
_refine_ls_R_factor_all          0.0638
_refine_ls_R_factor_gt           0.0427
_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^)+(0.0751P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1145
_refine_ls_wR_factor_ref         0.1227
_reflns_number_gt                4120
_reflns_number_total             5505
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2dt31283b.txt
_cod_data_source_block           2240
_cod_original_cell_volume        1479.1(4)
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               7020074