J.A.C.Clyburne; A.J.Jennings; H.Jong; I.D.McKenzie; T.Ramnial; Chemical communications (Cambridge, England)  (2003) –; doi:10.1039/b301416a

data_7103736
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_paper_doi               10.1039/b301416a
_journal_year                    2003
_chemical_formula_sum            'C21 H27 B N2'
_chemical_formula_weight         318.26
_chemical_name_systematic
;
?
;
_space_group_IT_number           60
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2n 2ab'
_symmetry_space_group_name_H-M   'P b c n'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   16.0680(3)
_cell_length_b                   7.24710(10)
_cell_length_c                   16.1949(4)
_cell_measurement_temperature    150(2)
_cell_volume                     1885.84(6)
_computing_cell_refinement       'Nonius DENZO'
_computing_data_collection       'Nonius COLLECT'
_computing_data_reduction        'Nonius DENZO'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Nonius Kappa-CCD'
_diffrn_measurement_method       'phi/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  0.052
_diffrn_reflns_av_sigmaI/netI    0.0338
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            21686
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         2.82
_exptl_absorpt_coefficient_mu    0.065
_exptl_absorpt_correction_T_max  0.9822
_exptl_absorpt_correction_T_min  0.9544
_exptl_absorpt_correction_type   integration
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.121
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             688
_exptl_crystal_size_max          0.73
_exptl_crystal_size_mid          0.53
_exptl_crystal_size_min          0.28
_refine_diff_density_max         0.431
_refine_diff_density_min         -0.262
_refine_diff_density_rms         0.063
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.029
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     110
_refine_ls_number_reflns         2160
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.029
_refine_ls_R_factor_all          0.0923
_refine_ls_R_factor_gt           0.0682
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w==1/[\s^2^(Fo^2^)+(0.1251P)^2^+0.5969P] where P==(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1896
_refine_ls_wR_factor_ref         0.2056
_reflns_number_gt                1554
_reflns_number_total             2160
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b301416a.txt
_cod_data_source_block           02144b
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
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      Pbcn
_cod_database_code               7103736