Syntheses, structures, luminescence and electrochemistry of benzene- and biphenyl-centered bis- and tris-1,3,2-diazaboroles and -1,3,2-diazaborolidines.
Weber, Lothar; Domke, Imme; Schmidt, Christian; Braun, Thomas; Stammler, Hans-Georg; Neumann, Beate; Dalton transactions (Cambridge, England : 2003)  (2006) 2127–2132; doi:10.1039/b514920g

data_7006873
_publ_section_title
;
 Syntheses, structures, luminescence and electrochemistry of benzene-
 and biphenyl-centered bis- and tris-1,3,2-diazaboroles and
 -1,3,2-diazaborolidines.
;
_journal_issue                   17
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              2127
_journal_page_last               2132
_journal_paper_doi               10.1039/b514920g
_journal_year                    2006
_chemical_formula_moiety         'C14 H24 B2 N4'
_chemical_formula_sum            'C14 H24 B2 N4'
_chemical_formula_weight         269.99
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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                 101.0520(15)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   15.3070(3)
_cell_length_b                   6.9600(2)
_cell_length_c                   14.7780(3)
_cell_measurement_reflns_used    2405
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      30.034
_cell_measurement_theta_min      2.910
_cell_volume                     1545.20(6)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'KappaCCD '
_computing_data_reduction        'Denzo and Scalepak (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'SHELXTL-PLUS (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      100(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       CCD
_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  0.032
_diffrn_reflns_av_sigmaI/netI    0.0210
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            17028
_diffrn_reflns_theta_full        30.00
_diffrn_reflns_theta_max         30.00
_diffrn_reflns_theta_min         3.23
_exptl_absorpt_coefficient_mu    0.069
_exptl_absorpt_correction_T_max  0.9863
_exptl_absorpt_correction_T_min  0.9795
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Denzo and Scalepak (Otwinowski & Minor, 1997)'
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.161
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       column
_exptl_crystal_F_000             584
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.346
_refine_diff_density_min         -0.160
_refine_diff_density_rms         0.041
_refine_ls_extinction_coef       0.004(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   1.061
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     95
_refine_ls_number_reflns         2239
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.061
_refine_ls_R_factor_all          0.0452
_refine_ls_R_factor_gt           0.0392
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0596P)^2^+0.6513P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1048
_refine_ls_wR_factor_ref         0.1086
_reflns_number_gt                1962
_reflns_number_total             2239
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b514920g.txt
_cod_data_source_block           compound4e
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               7006873