Pore with gate: modulating hydrogen storage in metal-organic framework materials via cation exchange
Yang, Sihai; Callear, Samantha K.; Ramirez-Cuesta, Anibal J.; David, William I. F.; Sun, Junliang; Blake, Alexander J.; Champness, Neil R.; Schröder, Martin; Faraday Discussions 151 (2011) 19–; doi:10.1039/c1fd00006c

data_1501629
_publ_section_title
;
 Pore with gate: modulating hydrogen storage in metal-organic framework
 materials via cation exchange
;
_journal_name_full               'Faraday Discussions'
_journal_page_first              19
_journal_paper_doi               10.1039/c1fd00006c
_journal_volume                  151
_journal_year                    2011
_chemical_formula_moiety
'In (C22 O8 H6 F4) (C2 H8 N), 2(C3 H7 N O), 4.0(H2 O)'
_chemical_formula_sum            'C30 H36 F4 In N3 O14'
_chemical_formula_weight         853.44
_chemical_name_systematic
;
?
;
_space_group_IT_number           142
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  '-I 4bd 2c'
_symmetry_space_group_name_H-M   'I 41/a c d :2'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           'enCIFer editing of SHELXL97 CIF output'
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            16
_cell_length_a                   19.807(5)
_cell_length_b                   19.807(5)
_cell_length_c                   53.454(9)
_cell_measurement_reflns_used    937
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      24.84
_cell_measurement_theta_min      2.50
_cell_volume                     20971(8)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_publication_material
'enCIFer (Allen et al., 2004); PLATON (Spek, 2009)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      120(2)
_diffrn_detector_area_resol_mean 66.06
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  'Bruker SMART APEXII CCD diffractometer'
_diffrn_measurement_method       'fine-slice \w scans'
_diffrn_radiation_monochromator  'silicon 111'
_diffrn_radiation_source         'Daresbury SRS Station 9.8'
_diffrn_radiation_type           synchrotron
_diffrn_radiation_wavelength     0.6943
_diffrn_reflns_av_R_equivalents  0.054
_diffrn_reflns_av_sigmaI/netI    0.022
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       59
_diffrn_reflns_limit_l_min       -59
_diffrn_reflns_number            61209
_diffrn_reflns_theta_full        22.69
_diffrn_reflns_theta_max         22.69
_diffrn_reflns_theta_min         2.28
_exptl_absorpt_coefficient_mu    0.513
_exptl_absorpt_correction_T_max  1.00
_exptl_absorpt_correction_T_min  0.86
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker SADABS'
_exptl_crystal_colour            COLOURLESS
_exptl_crystal_density_diffrn    1.081
_exptl_crystal_description       BLOCK
_exptl_crystal_F_000             6944
_exptl_crystal_size_max          0.14
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.12
_platon_squeeze_details
;
Approximately 70% of the unit cell volume comprises a large region of
disordered solvent and counter-cations which could not be modelled as
discrete atomic sites. We employed PLATON SQUEEZE to calculate the
contribution to the diffraction from the solvent/cation region and
thereby produced a set of solvent-free diffraction intensities. SQUEEZE
estimated a total count of 1559 electrons per unit cell, which were
assigned to be 2.0 DMF and 4.0 water molecules per indium. The final
formula was calculated from the TGA combined with elemental analysis data.
;
_refine_diff_density_max         0.30
_refine_diff_density_min         -0.77
_refine_diff_density_rms         0.06
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.05
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     159
_refine_ls_number_reflns         3732
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.05
_refine_ls_R_factor_all          0.0685
_refine_ls_R_factor_gt           0.0548
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.093P)^2^+40.85P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.168
_refine_ls_wR_factor_ref         0.177
_reflns_number_gt                2959
_reflns_number_total             3732
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c1fd00006c.txt
_cod_data_source_block           NOTT-212
_cod_original_sg_symbol_H-M      'I 41/acd'
_cod_database_code               1501629