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_1501628
_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 (C24 O8 H12) (C2 H8 N), 2(C3 H7 N O), 2(H2 O)'
_chemical_formula_sum            'C32 H38 In N3 O12'
_chemical_formula_weight         771.47
_chemical_name_systematic
;
?
;
_space_group_IT_number           131
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  '-P 4c 2'
_symmetry_space_group_name_H-M   'P 42/m m c'
_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            2
_cell_length_a                   9.9617(4)
_cell_length_b                   9.9617(4)
_cell_length_c                   26.747(2)
_cell_measurement_reflns_used    790
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      33.22
_cell_measurement_theta_min      3.68
_cell_volume                     2654.3(2)
_computing_cell_refinement
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.31.8 (release 12-01-2007 CrysAlis171 .NET)
(compiled Jan 12 2007,17:49:11)
;
_computing_data_collection
;
CrysAlis CCD, Oxford Diffraction Ltd.,
Version 1.171.31.8 (release 12-01-2007 CrysAlis171 .NET)
(compiled Jan 12 2007,17:49:11)
;
_computing_data_reduction
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.31.8 (release 12-01-2007 CrysAlis171 .NET)
(compiled Jan 12 2007,17:49:11)
;
_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      293(2)
_diffrn_detector_area_resol_mean 16.5467
_diffrn_measured_fraction_theta_full 0.976
_diffrn_measured_fraction_theta_max 0.976
_diffrn_measurement_device_type  'CrysAlis CCD area detector'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enhance (Mo) X-ray Source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.130
_diffrn_reflns_av_sigmaI/netI    0.169
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            8753
_diffrn_reflns_theta_full        23.24
_diffrn_reflns_theta_max         23.24
_diffrn_reflns_theta_min         4.16
_exptl_absorpt_coefficient_mu    0.488
_exptl_absorpt_correction_T_max  0.91
_exptl_absorpt_correction_T_min  0.90
_exptl_absorpt_correction_type   analytical
_exptl_absorpt_process_details
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.31.8 (release 12-01-2007 CrysAlis171 .NET)
(compiled Jan 12 2007,17:49:11)
Analytical numeric absorption correction using a multifaceted crystal
model based on expressions derived by R.C. Clark & J.S. Reid.
(Clark, R. C. & Reid, J. S. (1995). Acta Cryst. A51, 887-897)
;
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    0.965
_exptl_crystal_description       Octahedron
_exptl_crystal_F_000             792
_exptl_crystal_size_max          0.14
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.12
_platon_squeeze_details
;
Approximately 65% 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 28 electrons per unit cell, which were
assigned to be 2.0 DMF and 2.0 water molecules per indium. The final
formula was calculated from the TGA combined with elemental analysis data.
;
_refine_diff_density_max         1.12
_refine_diff_density_min         -0.34
_refine_diff_density_rms         0.08
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.02
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     51
_refine_ls_number_reflns         1084
_refine_ls_number_restraints     21
_refine_ls_restrained_S_all      1.03
_refine_ls_R_factor_all          0.178
_refine_ls_R_factor_gt           0.0818
_refine_ls_shift/su_max          0.009
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.060P)^2^+6.000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.173
_refine_ls_wR_factor_ref         0.189
_reflns_number_gt                503
_reflns_number_total             1084
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c1fd00006c.txt
_cod_data_source_block           NOTT-211
_cod_original_cell_volume        2654.3(3)
_cod_original_sg_symbol_H-M      'P 42/mmc'
_cod_database_code               1501628