Base-Promoted Decarboxylative Azo-Coupling: Construction of Unsymmetrical Azocarboranes.
Li, Huan-Huan; Bai, Fan; Yan, Hong; Lu, Chang-Sheng; Organic letters 19 (2017) 862–865; doi:10.1021/acs.orglett.7b00013

data_1545448
_publ_section_title
;
 Base-Promoted Decarboxylative Azo-Coupling: Construction of Unsymmetrical
 Azocarboranes.
;
_journal_issue                   4
_journal_name_full               'Organic letters'
_journal_page_first              862
_journal_page_last               865
_journal_paper_doi               10.1021/acs.orglett.7b00013
_journal_volume                  19
_journal_year                    2017
_chemical_formula_sum            'C8 H15 B10 Br N2'
_chemical_formula_weight         327.23
_chemical_name_systematic
; 
 ? 
;
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 97.113(7)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.547(3)
_cell_length_b                   20.473(9)
_cell_length_c                   9.936(4)
_cell_measurement_reflns_used    2880
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      26.01
_cell_measurement_theta_min      2.87
_cell_volume                     1523.4(11)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.988
_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  0.0623
_diffrn_reflns_av_sigmaI/netI    0.0676
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            11220
_diffrn_reflns_theta_full        27.69
_diffrn_reflns_theta_max         27.69
_diffrn_reflns_theta_min         1.99
_exptl_absorpt_coefficient_mu    2.680
_exptl_absorpt_correction_T_max  0.5777
_exptl_absorpt_correction_T_min  0.5777
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.427
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             648
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.23
_refine_diff_density_max         0.911
_refine_diff_density_min         -0.845
_refine_diff_density_rms         0.100
_refine_ls_extinction_coef       0.071(5)
_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   1.007
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     191
_refine_ls_number_reflns         3518
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.007
_refine_ls_R_factor_all          0.0751
_refine_ls_R_factor_gt           0.0507
_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^)+(0.0929P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1392
_refine_ls_wR_factor_ref         0.1526
_reflns_number_gt                2527
_reflns_number_total             3518
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol7b00013_si_002.cif
_cod_data_source_block           3ar
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/home/data/users/saulius/crontab/automatic-downloads/current/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 4973 2017-02-22 13:04:09Z antanas 
;
_cod_original_sg_symbol_H-M      'P2(1)/n  '
_cod_database_code               1545448