Assembly of a planar, tricyclic B4N8 framework with s-indacene structure.
Ly, Hanh V; Tuononen, Heikki M; Parvez, Masood; Roesler, Roland; Chemical communications (Cambridge, England)  (2007) 4522–4524; doi:10.1039/b709270a

data_7102254
_publ_section_title
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 Assembly of a planar, tricyclic B4N8 framework with s-indacene
 structure.
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_journal_issue                   43
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              4522
_journal_page_last               4524
_journal_paper_doi               10.1039/b709270a
_journal_year                    2007
_chemical_formula_sum            'C18 H28 B4 N8'
_chemical_formula_weight         399.72
_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
_cell_angle_alpha                75.88(3)
_cell_angle_beta                 83.19(4)
_cell_angle_gamma                76.55(4)
_cell_formula_units_Z            2
_cell_length_a                   7.240(3)
_cell_length_b                   9.157(6)
_cell_length_c                   16.983(12)
_cell_measurement_reflns_used    6791
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      25.0
_cell_measurement_theta_min      3.1
_cell_volume                     1059.7(11)
_computing_cell_refinement       'HKL DENZO (Otwinowski & Minor, 1997)'
_computing_data_collection       'COLLECT (Hooft, 1998)'
_computing_data_reduction        'SCALEPACK (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'ORTEPII (Johnson, 1976)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SAPI91 (Fan, 1991)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       ' \w and \f '
_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  0.0306
_diffrn_reflns_av_sigmaI/netI    0.0463
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            6791
_diffrn_reflns_theta_full        24.98
_diffrn_reflns_theta_max         24.98
_diffrn_reflns_theta_min         3.08
_exptl_absorpt_coefficient_mu    0.077
_exptl_absorpt_correction_T_max  0.9954
_exptl_absorpt_correction_T_min  0.9878
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SORTAV: (Blessing, 1997)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.253
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             424
_exptl_crystal_size_max          0.16
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.174
_refine_diff_density_min         -0.168
_refine_diff_density_rms         0.039
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.013
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     277
_refine_ls_number_reflns         3693
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.013
_refine_ls_R_factor_all          0.0690
_refine_ls_R_factor_gt           0.0459
_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^)+(0.10P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1270
_refine_ls_wR_factor_ref         0.1464
_reflns_number_gt                2757
_reflns_number_total             3693
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b709270a.txt
_cod_data_source_block           Compound_2
_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.

'_exptl_absorpt_correction_type' value 'Multi-scan' changed
to 'multi-scan' 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 
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_cod_database_code               7102254