Clathrates of TETROL: Further Aspects of the Selective Inclusion of Methylcyclohexanones in Their Energetically Unfavorable Axial Methyl Conformations.
Barton, Benita; Caira, Mino R.; Hosten, Eric C.; McCleland, Cedric W.; Weitz, Selwyn; The Journal of organic chemistry 80 (2015) 7184–7192; doi:10.1021/acs.joc.5b01067

data_4031148
_publ_section_title
;
 Clathrates of TETROL: Further Aspects of the Selective Inclusion of
 Methylcyclohexanones in Their Energetically Unfavorable Axial Methyl
 Conformations.
;
_journal_issue                   14
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              7184
_journal_page_last               7192
_journal_paper_doi               10.1021/acs.joc.5b01067
_journal_volume                  80
_journal_year                    2015
_chemical_absolute_configuration syn
_chemical_formula_moiety         'C28 H26 O4, C6 H10 O'
_chemical_formula_sum            'C34 H36 O5'
_chemical_formula_weight         524.63
_chemical_melting_point          421
_chemical_name_systematic
;
(+)-(2R,3R)-tetraphenylbutane-1,2,3,4-tetraol /cyclohexanone (1:1)
;
_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'
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014
_cell_angle_alpha                90
_cell_angle_beta                 94.025(2)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   12.5944(4)
_cell_length_b                   8.1531(2)
_cell_length_c                   13.4570(5)
_cell_measurement_reflns_used    5219
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      28.30
_cell_measurement_theta_min      2.30
_cell_volume                     1378.40(8)
_computing_cell_refinement       'APEX2 v2011.4-1 (Bruker AXS)'
_computing_data_collection       'Bruker Instrument Service v2011.4.0.0'
_computing_data_reduction        'SAINT V7.68A (Bruker AXS, 2009)'
_computing_structure_refinement  'SHELXL-2014 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-2013 (Sheldrick, 2014)'
_diffrn_ambient_temperature      200(2)
_diffrn_detector_area_resol_mean 8.3333
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0166
_diffrn_reflns_av_unetI/netI     0.0267
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.996
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            13345
_diffrn_reflns_point_group_measured_fraction_full 0.984
_diffrn_reflns_point_group_measured_fraction_max 0.949
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.308
_diffrn_reflns_theta_min         1.517
_exptl_absorpt_coefficient_mu    0.084
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.8958
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'SADABS V2008/1 (Bruker AXS)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.264
_exptl_crystal_density_meas      ?
_exptl_crystal_description       platelet
_exptl_crystal_F_000             560
_exptl_crystal_size_max          0.421
_exptl_crystal_size_mid          0.327
_exptl_crystal_size_min          0.070
_refine_diff_density_max         0.215
_refine_diff_density_min         -0.207
_refine_diff_density_rms         0.038
_refine_ls_abs_structure_details
;
 Flack x determined using 2252 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.1(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.037
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     356
_refine_ls_number_reflns         6501
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.037
_refine_ls_R_factor_all          0.0488
_refine_ls_R_factor_gt           0.0388
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0597P)^2^+0.0988P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0986
_refine_ls_wR_factor_ref         0.1045
_reflns_Friedel_coverage         0.783
_reflns_Friedel_fraction_full    0.966
_reflns_Friedel_fraction_max     0.895
_reflns_number_gt                5556
_reflns_number_total             6501
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jo5b01067_si_002.cif
_cod_data_source_block           da141
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3271 2015-04-21 07:52:19Z andrius 

 Adding full bibliography for 4031148--4031151.cif.
;
_cod_database_code               4031148
_shelx_estimated_absorpt_t_min   0.966
_shelx_estimated_absorpt_t_max   0.994
_shelxl_version_number           2014-1
_shelx_res_checksum              96251
_shelx_hkl_checksum              76735