Hydrogen gas storage in fluorinated ultramicroporous tunnel crystal.
Kataoka, Keisuke; Katagiri, Toshimasa; Nanoscale 4 (2012) 5098–5101; doi:10.1039/c2nr30940h

data_1515301
_publ_section_title
;
 Hydrogen gas storage in fluorinated ultramicroporous tunnel crystal.
;
_journal_issue                   16
_journal_name_full               Nanoscale
_journal_page_first              5098
_journal_page_last               5101
_journal_paper_doi               10.1039/c2nr30940h
_journal_volume                  4
_journal_year                    2012
_chemical_absolute_configuration syn
_chemical_formula_moiety         'C14 H20 F6 O6'
_chemical_formula_sum            'C14 H20 F6 O6'
_chemical_formula_weight         398.30
_chemical_melting_point          345
_chemical_name_common
'(S,S)-(-)-octamethylene bis(3,3,3-trifluorolactate)'
_chemical_optical_rotation       '[\a]^25^~D~= -4.38 (c = 1.1, acetone)'
_space_group_IT_number           18
_symmetry_cell_setting           orthorhombic
_symmetry_Int_Tables_number      18
_symmetry_space_group_name_Hall  'P 2 2ab'
_symmetry_space_group_name_H-M   'P 21 21 2'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   22.9706(5)
_cell_length_b                   5.14600(10)
_cell_length_c                   8.0376(2)
_cell_measurement_reflns_used    9550
_cell_measurement_temperature    150(1)
_cell_measurement_theta_max      50.0
_cell_measurement_theta_min      5.4
_cell_volume                     950.10(4)
_computing_cell_refinement       'PAPID-AUTO (Rigaku)'
_computing_data_collection       'RAPID-AUTO (Rigaku)'
_computing_data_reduction        'teXsan Ver. 1.11 (MSC)'
_computing_molecular_graphics    'Mercury Ver. 1.3 (Bruno et al., 2002)'
_computing_publication_material  'WinGX Ver. 1.7 (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR97 (Altomare et al., 1999)'
_diffrn_ambient_temperature      150(1)
_diffrn_detector_area_resol_mean 10
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Rigaku RAXIS-IV Imaging Plate'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Rigaku rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0386
_diffrn_reflns_limit_h_max       27
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            6670
_diffrn_reflns_theta_full        25.29
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         2.53
_exptl_absorpt_coefficient_mu    0.143
_exptl_absorpt_correction_T_max  0.9929
_exptl_absorpt_correction_T_min  0.8920
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; ' (HIGASHI, T. (1995). Abscor - Empirical Absorption Correction
based on Fourier Series Approximation. Rigaku Corporation, Tokyo, Japan.)'
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.392
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       platelet
_exptl_crystal_F_000             412
_exptl_crystal_size_max          0.500
_exptl_crystal_size_mid          0.150
_exptl_crystal_size_min          0.050
_refine_diff_density_max         0.214
_refine_diff_density_min         -0.174
_refine_diff_density_rms         0.049
_refine_ls_abs_structure_details
; The absolute configuration was assigned to agree with
that of its precursor (S)-trifluorolactic acid at the chiral centre C2.
This compound has no atom heavier than Si and analyzed by
Mo radiation so that Flack parameter is not listed.
Friedel pairs were merged before refinement.
;
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.217
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     118
_refine_ls_number_reflns         1053
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.217
_refine_ls_R_factor_all          0.0511
_refine_ls_R_factor_gt           0.0441
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0477P)^2^+0.1475P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0969
_refine_ls_wR_factor_ref         0.0991
_reflns_number_gt                990
_reflns_number_total             1053
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2nr30940h.txt
_cod_data_source_block           3e
_cod_database_code               1515301