The intramolecular beta-fluorine***ammonium interaction in 4- and 8-membered rings
D. O'Hagan; Natalie E. J. Gooseman; A. Slawin; Andrew M. Teale; David Tozer; Robert J. Young; Chemical Communications  (2006) –; doi:10.1039/b606334a

data_7101316
_publ_section_title
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The intramolecular beta-fluorine***ammonium
interaction in 4- and 8-membered rings
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_journal_issue                   30
_journal_name_full               'Chemical Communications'
_journal_paper_doi               10.1039/b606334a
_journal_year                    2006
_chemical_formula_moiety         'C6 H15 Br2 F N2'
_chemical_formula_sum            'C6 H15 Br2 F N2'
_chemical_formula_weight         294.02
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/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                 106.266(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.0901(16)
_cell_length_b                   12.250(3)
_cell_length_c                   12.581(3)
_cell_measurement_reflns_used    3782
_cell_measurement_temperature    93(2)
_cell_measurement_theta_max      25.3491
_cell_measurement_theta_min      2.3681
_cell_volume                     1049.0(4)
_computing_cell_refinement       'CrystalClear (Rigaku Corp., 2004)'
_computing_data_collection       'CrystalClear (Rigaku Corp., 2004)'
_computing_data_reduction        'CrystalClear (Rigaku Corp., 2004)'
_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      93(2)
_diffrn_detector_area_resol_mean 0.83
_diffrn_measured_fraction_theta_full 0.976
_diffrn_measured_fraction_theta_max 0.976
_diffrn_measurement_device_type  CCD
_diffrn_measurement_method       dtprofit.ref
_diffrn_radiation_monochromator  confocal
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0333
_diffrn_reflns_av_sigmaI/netI    0.0301
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            6572
_diffrn_reflns_theta_full        25.37
_diffrn_reflns_theta_max         25.37
_diffrn_reflns_theta_min         2.37
_exptl_absorpt_coefficient_mu    7.691
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.4862
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.862
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prism
_exptl_crystal_F_000             576
_exptl_crystal_size_max          0.1000
_exptl_crystal_size_mid          0.0300
_exptl_crystal_size_min          0.0300
_refine_diff_density_max         0.646
_refine_diff_density_min         -0.685
_refine_diff_density_rms         0.099
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.026
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     117
_refine_ls_number_reflns         1887
_refine_ls_number_restraints     4
_refine_ls_restrained_S_all      1.025
_refine_ls_R_factor_all          0.0293
_refine_ls_R_factor_gt           0.0248
_refine_ls_shift/su_max          0.011
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0308P)^2^+0.7607P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0568
_refine_ls_wR_factor_ref         0.0589
_reflns_number_gt                1707
_reflns_number_total             1887
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b606334a.txt
_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 
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_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7101316