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_1551969
_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 ad
_chemical_formula_moiety         'C6 H8 O4'
_chemical_formula_sum            'C6 H8 O4'
_chemical_formula_weight         144.13
_space_group_crystal_system      orthorhombic
_space_group_IT_number           29
_space_group_name_Hall           'P 2c -2ac'
_space_group_name_H-M_alt        'P c a 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.0000
_cell_angle_beta                 90.0000
_cell_angle_gamma                90.0000
_cell_formula_units_Z            8
_cell_length_a                   11.166(3)
_cell_length_b                   12.913(3)
_cell_length_c                   8.653(3)
_cell_measurement_reflns_used    4362
_cell_measurement_temperature    93
_cell_measurement_theta_max      25.35
_cell_measurement_theta_min      2.41
_cell_volume                     1247.6(6)
_computing_cell_refinement       'CrystalClear-SM Expert 2.0 rc13'
_computing_data_collection
'CrystalClear-SM Expert 2.0 rc13 (Rigaku, 2009)'
_computing_data_reduction        'CrystalClear-SM Expert 2.0 rc13'
_computing_molecular_graphics    'CrystalStructure 4.1'
_computing_publication_material  'CrystalStructure 4.1 (Rigaku, 2014)'
_computing_structure_refinement  'SHELXL2013 (Sheldrick, 2008)'
_computing_structure_solution    SIR97
_diffrn_ambient_temperature      93
_diffrn_detector_area_resol_mean 14.629
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'Rigaku Mercury70'
_diffrn_measurement_method       \w
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0351
_diffrn_reflns_Laue_measured_fraction_full 0.991
_diffrn_reflns_Laue_measured_fraction_max 0.991
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            7436
_diffrn_reflns_point_group_measured_fraction_full 0.863
_diffrn_reflns_point_group_measured_fraction_max 0.858
_diffrn_reflns_theta_full        25.000
_diffrn_reflns_theta_max         25.325
_diffrn_reflns_theta_min         2.411
_diffrn_standards_interval_count .
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.131
_exptl_absorpt_correction_T_max  0.988
_exptl_absorpt_correction_T_min  0.879
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'REQAB (Rigaku, 1998)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.535
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             608.00
_exptl_crystal_size_max          0.150
_exptl_crystal_size_mid          0.120
_exptl_crystal_size_min          0.090
_refine_diff_density_max         0.19
_refine_diff_density_min         -0.20
_refine_ls_abs_structure_details
;
 Flack x determined using 625 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.0(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.061
_refine_ls_hydrogen_treatment    refxyz
_refine_ls_number_parameters     197
_refine_ls_number_reflns         1951
_refine_ls_number_restraints     5
_refine_ls_R_factor_all          0.0374
_refine_ls_R_factor_gt           0.0344
_refine_ls_shift/su_max          0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.0371P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0742
_refine_ls_wR_factor_ref         0.0768
_reflns_number_gt                1829
_reflns_number_total             1951
_reflns_threshold_expression     F^2^>2.0\s(F^2^)
_cod_data_source_file            nchem.2232-s3.cif
_cod_data_source_block           6
_cod_database_code               1551969
_shelx_res_checksum              38724
_shelx_hkl_checksum              60269