Synthesis, structure and DFT calculations of 1,2-N-substituted o-carboranes.
Pang, Ronglin; Li, Junxia; Cui, Zhongzheng; Zheng, Cheng; Li, Zhifang; Chen, Weifeng; Qi, Fan; Su, Li; Xiao, Xu-Qiong; Dalton transactions (Cambridge, England : 2003) 48 (2019) 7242–7248; doi:10.1039/c8dt04877k

data_7048727
_publ_section_title
;
 Synthesis, structure and DFT calculations of 1,2-N-substituted
 o-carboranes.
;
_journal_issue                   21
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              7242
_journal_page_last               7248
_journal_paper_doi               10.1039/c8dt04877k
_journal_volume                  48
_journal_year                    2019
_chemical_formula_sum            'C18 H30 B10 N2 O2'
_chemical_formula_weight         414.54
_space_group_crystal_system      orthorhombic
_space_group_IT_number           33
_space_group_name_Hall           'P 2c -2n'
_space_group_name_H-M_alt        'P n a 21'
_symmetry_space_group_name_Hall  'P 2c -2n'
_symmetry_space_group_name_H-M   'P n a 21'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2019-01-16 deposited with the CCDC.
2019-01-24 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   26.797(6)
_cell_length_b                   7.6904(17)
_cell_length_c                   11.398(3)
_cell_measurement_reflns_used    9155
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      27.47
_cell_measurement_theta_min      2.35
_cell_volume                     2348.9(10)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.937
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0273
_diffrn_reflns_av_unetI/netI     0.0294
_diffrn_reflns_Laue_measured_fraction_full 0.992
_diffrn_reflns_Laue_measured_fraction_max 0.937
_diffrn_reflns_limit_h_max       34
_diffrn_reflns_limit_h_min       -29
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            15891
_diffrn_reflns_point_group_measured_fraction_full 0.989
_diffrn_reflns_point_group_measured_fraction_max 0.929
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.108
_diffrn_reflns_theta_min         1.520
_exptl_absorpt_coefficient_mu    0.067
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.6420
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.172
_exptl_crystal_description       block
_exptl_crystal_F_000             872
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.277
_refine_diff_density_min         -0.208
_refine_diff_density_rms         0.037
_refine_ls_abs_structure_details
; 
 Flack x determined using 2100 quotients [(I+)-(I-)]/[(I+)+(I-)] 
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259). 
;
_refine_ls_abs_structure_Flack   0.2(3)
_refine_ls_extinction_coef       0.0046(17)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2014/7 (Sheldrick 2014'
_refine_ls_goodness_of_fit_ref   1.035
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     340
_refine_ls_number_reflns         5315
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.038
_refine_ls_R_factor_all          0.0460
_refine_ls_R_factor_gt           0.0395
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0694P)^2^+0.1968P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1052
_refine_ls_wR_factor_ref         0.1109
_reflns_Friedel_coverage         0.890
_reflns_Friedel_fraction_full    0.985
_reflns_Friedel_fraction_max     0.921
_reflns_number_gt                4827
_reflns_number_total             5315
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8dt04877k2.cif
_cod_data_source_block           compound3d
_cod_depositor_comments
'Adding full bibliography for 7048722--7048727.cif.'
_cod_original_cell_volume        2348.8(9)
_cod_database_code               7048727
_shelx_shelxl_version_number     2014/7
_shelx_res_checksum              66193