1,1- and 1,2-isomers of the diborane(4) compound B2{1,2-(NH)2C6H4}2 and a TCNQ Co-crystal of the 1,1-isomer
Alibadi, M. A. M.; Batsanov, A. S.; Bramham, G.; Charmant, J. P. H.; Haddow, M. F.; MacKay, L.; Mansell, S. M.; McGrady, J. E.; Norman, N. C.; Roffey, A.; Russell, C. A.; Dalton Transactions  (2009) 5348–5354; doi:10.1039/b822225h

data_7001657
_publ_section_title
;
 1,1- and 1,2-isomers of the diborane(4) compound B2{1,2-(NH)2C6H4}2
 and a TCNQ Co-crystal of the 1,1-isomer
;
_journal_issue                   27
_journal_name_full               'Dalton Transactions'
_journal_page_first              5348
_journal_page_last               5354
_journal_paper_doi               10.1039/b822225h
_journal_year                    2009
_chemical_formula_moiety         'C12 H12 B2 N4'
_chemical_formula_sum            'C12 H12 B2 N4'
_chemical_formula_weight         233.88
_chemical_name_common            1,2-Bis(o-phenyldiamino-N,N')diboron
_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   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                100.45(3)
_cell_angle_beta                 101.05(3)
_cell_angle_gamma                94.63(3)
_cell_formula_units_Z            2
_cell_length_a                   5.7750(12)
_cell_length_b                   7.8242(16)
_cell_length_c                   12.487(3)
_cell_measurement_reflns_used    1541
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.396
_cell_measurement_theta_min      2.6665
_cell_volume                     540.7(2)
_computing_cell_refinement       'BRUKER SMART'
_computing_data_collection       'BRUKER SMART'
_computing_data_reduction        'BRUKER SMART'
_computing_molecular_graphics    SHELXTL
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 8.5
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'CCD, area detector'
_diffrn_measurement_method       '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  0.0435
_diffrn_reflns_av_sigmaI/netI    0.0483
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            6229
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         1.70
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.088
_exptl_absorpt_correction_T_max  0.96
_exptl_absorpt_correction_T_min  0.91
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS U2.10(BRUKER-AXS,2003)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.437
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             244
_exptl_crystal_size_max          0.6
_exptl_crystal_size_mid          0.6
_exptl_crystal_size_min          0.4
_refine_diff_density_max         0.360
_refine_diff_density_min         -0.358
_refine_diff_density_rms         0.113
_refine_ls_extinction_coef       0
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.995
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     163
_refine_ls_number_reflns         2468
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.995
_refine_ls_R_factor_all          0.0675
_refine_ls_R_factor_gt           0.0468
_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^)+(0.0858P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1316
_refine_ls_wR_factor_ref         0.1530
_reflns_number_gt                1776
_reflns_number_total             2468
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b822225h.txt
_cod_data_source_block           2b
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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_cell_volume        540.66(19)
_cod_database_code               7001657