The generation and trapping of enantiopure bromonium ions.
Braddock, D Christopher; Hermitage, Stephen A; Kwok, Lilian; Pouwer, Rebecca; Redmond, Joanna M; White, Andrew J P; Chemical communications (Cambridge, England) 34 (2009) 1082–1084; doi:10.1039/b816914d

data_7104204
_publ_section_title
;
 The generation and trapping of enantiopure bromonium ions.
;
_journal_issue                   9
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              1082
_journal_page_last               1084
_journal_paper_doi               10.1039/b816914d
_journal_volume                  34
_journal_year                    2009
_chemical_formula_moiety         'C8 H8 Br Cl'
_chemical_formula_sum            'C8 H8 Br Cl'
_chemical_formula_weight         219.50
_space_group_IT_number           56
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ab 2ac'
_symmetry_space_group_name_H-M   'P c 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
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   15.6605(4)
_cell_length_b                   19.4998(5)
_cell_length_c                   5.49619(11)
_cell_measurement_reflns_used    6726
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      31.8224
_cell_measurement_theta_min      3.8403
_cell_volume                     1678.41(7)
_computing_cell_refinement       'CrysAlis RED, Oxford Diffraction Ltd'
_computing_data_collection       'CrysAlis CCD, Oxford Diffraction Ltd'
_computing_data_reduction        'CrysAlis RED, Oxford Diffraction Ltd'
_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      173(2)
_diffrn_detector_area_resol_mean 15.9863
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.946
_diffrn_measurement_device_type  'OD Xcalibur 3'
_diffrn_measurement_method       'omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enhance (Mo) X-ray Source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0508
_diffrn_reflns_av_sigmaI/netI    0.0466
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       28
_diffrn_reflns_limit_k_min       -28
_diffrn_reflns_limit_l_max       7
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            23570
_diffrn_reflns_theta_full        31.00
_diffrn_reflns_theta_max         31.91
_diffrn_reflns_theta_min         4.04
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    5.136
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.36223
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.32.5 (release 08-05-2007 CrysAlis171 .NET)
(compiled May 8 2007,13:10:02)
Empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.737
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plates
_exptl_crystal_F_000             864
_exptl_crystal_size_max          0.41
_exptl_crystal_size_mid          0.28
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.719
_refine_diff_density_min         -0.527
_refine_diff_density_rms         0.102
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.087
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     118
_refine_ls_number_reflns         2738
_refine_ls_number_restraints     81
_refine_ls_restrained_S_all      1.104
_refine_ls_R_factor_all          0.1011
_refine_ls_R_factor_gt           0.0375
_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^)+(0.0455P)^2^+1.1679P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0872
_refine_ls_wR_factor_ref         0.1152
_reflns_number_gt                1471
_reflns_number_total             2738
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b816914d.txt
_cod_data_source_block           Compound_4
_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      Pccn
_cod_database_code               7104204