All-cis 1,2,3,4,5,6-hexafluorocyclohexane is a facially polarized cyclohexane
Neil S. Keddie; Alexandra M. Z. Slawin; Tomas Lebl; Douglas Philp; David O Hagan; Nature Chemistry 7 (2015) 483–488; doi:10.1038/nchem.2232

data_1551968
_publ_section_title
;
 All-cis 1,2,3,4,5,6-hexafluorocyclohexane is a facially polarized
 cyclohexane
;
_journal_name_full               'Nature Chemistry'
_journal_page_first              483
_journal_page_last               488
_journal_paper_doi               10.1038/nchem.2232
_journal_volume                  7
_journal_year                    2015
_chemical_absolute_configuration syn
_chemical_formula_moiety         'C6 H6 F6'
_chemical_formula_sum            'C6 H6 F6'
_chemical_formula_weight         192.10
_space_group_crystal_system      monoclinic
_space_group_IT_number           4
_space_group_name_Hall           'P 2yb'
_space_group_name_H-M_alt        'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.0000
_cell_angle_beta                 93.54(4)
_cell_angle_gamma                90.0000
_cell_formula_units_Z            2
_cell_length_a                   5.556(8)
_cell_length_b                   5.842(8)
_cell_length_c                   10.511(17)
_cell_measurement_reflns_used    398
_cell_measurement_temperature    125
_cell_measurement_theta_max      68.25
_cell_measurement_theta_min      26.60
_cell_volume                     340.5(9)
_computing_cell_refinement       'CrystalClear-SM Expert 2.1 b29'
_computing_data_collection       'CrystalClear-SM Expert 2.1 b29 (Rigaku, 2013)'
_computing_data_reduction        'CrystalClear-SM Expert 2.1 b29'
_computing_molecular_graphics    'CrystalStructure 4.1'
_computing_publication_material  'CrystalStructure 4.1 (Rigaku, 2014)'
_computing_structure_refinement  'SHELXL2013 (Sheldrick, 2008)'
_computing_structure_solution    'SIR2004 (Burla, et al., 2005)'
_diffrn_ambient_temperature      125
_diffrn_detector_area_resol_mean 5.811
_diffrn_measured_fraction_theta_full 0.982
_diffrn_measured_fraction_theta_max 0.980
_diffrn_measurement_device_type  'Rigaku XtaLAB P100'
_diffrn_measurement_method       \w
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.54187
_diffrn_reflns_av_R_equivalents  0.0414
_diffrn_reflns_Laue_measured_fraction_full 0.982
_diffrn_reflns_Laue_measured_fraction_max 0.980
_diffrn_reflns_limit_h_max       5
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            2261
_diffrn_reflns_point_group_measured_fraction_full 0.900
_diffrn_reflns_point_group_measured_fraction_max 0.896
_diffrn_reflns_theta_full        67.000
_diffrn_reflns_theta_max         68.468
_diffrn_reflns_theta_min         4.214
_diffrn_standards_interval_count .
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.076
_exptl_absorpt_correction_T_max  0.979
_exptl_absorpt_correction_T_min  0.645
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'REQAB (Rigaku, 1998)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.873
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       platelet
_exptl_crystal_F_000             192.00
_exptl_crystal_size_max          0.240
_exptl_crystal_size_mid          0.100
_exptl_crystal_size_min          0.010
_refine_diff_density_max         0.38
_refine_diff_density_min         -0.25
_refine_ls_abs_structure_details
;
 Flack x determined using 306 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.4(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.036
_refine_ls_hydrogen_treatment    constr
_refine_ls_number_parameters     109
_refine_ls_number_reflns         1124
_refine_ls_number_restraints     1
_refine_ls_R_factor_all          0.0639
_refine_ls_R_factor_gt           0.0604
_refine_ls_shift/su_max          0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.1039P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1496
_refine_ls_wR_factor_ref         0.1519
_reflns_number_gt                953
_reflns_number_total             1124
_reflns_threshold_expression     F^2^>2.0\s(F^2^)
_cod_data_source_file            nchem.2232-s2.cif
_cod_data_source_block           1
_cod_database_code               1551968
_shelx_res_checksum              80364
_shelx_hkl_checksum              16579