Metal-organic frameworks constructed from flexible V-shaped ligands: adjustment of the topology, interpenetration and porosity via a solvent system
Qingxiang Yang; Xingqiu Chen; Zhijun Chen; Ying Hao; Yizhi Li; Qingyi Lu; Hegen Zheng; Chem.Commun. 48 (2012) 10016–; doi:10.1039/c2cc35340g

data_7108421
_publ_section_title
;
 Metal-organic frameworks constructed from flexible V-shaped ligands:
 adjustment of the topology, interpenetration and porosity via a solvent
 system
;
_journal_name_full               Chem.Commun.
_journal_page_first              10016
_journal_paper_doi               10.1039/c2cc35340g
_journal_volume                  48
_journal_year                    2012
_chemical_formula_sum            'C17 H21 Cu N2 O7.5'
_chemical_formula_weight         436.86
_chemical_name_systematic
;
?
;
_space_group_IT_number           70
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-F 2uv 2vw'
_symmetry_space_group_name_H-M   'F d d d :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            32
_cell_length_a                   16.6727(11)
_cell_length_b                   30.982(2)
_cell_length_c                   33.554(2)
_cell_measurement_temperature    296(2)
_cell_volume                     17332.4(19)
_computing_cell_refinement       'SMART (Bruker, 2000)'
_computing_data_collection       'SMART (Bruker, 2000)'
_computing_data_reduction        'SMART (Bruker, 2000)'
_computing_molecular_graphics    SHELXTL
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0611
_diffrn_reflns_av_sigmaI/netI    0.0336
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       36
_diffrn_reflns_limit_k_min       -36
_diffrn_reflns_limit_l_max       39
_diffrn_reflns_limit_l_min       -32
_diffrn_reflns_number            23442
_diffrn_reflns_theta_full        25.02
_diffrn_reflns_theta_max         25.02
_diffrn_reflns_theta_min         2.29
_exptl_absorpt_coefficient_mu    1.047
_exptl_absorpt_correction_T_max  0.8950
_exptl_absorpt_correction_T_min  0.8203
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS; Bruker, 2000'
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.339
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       cubic
_exptl_crystal_F_000             7274
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.11
_platon_squeeze_details
;
The PLATON SQUEEZE procedure was used to treat regions of
diffuse solvent which could not be sensibly modelled
in terms of atomic sites. Their contribution to the
diffraction pattern was removed and modified F(obs)**2
written to a new HKL file. The number of electrons thus located,
842 per unit cell, is included in the formula, formula weight,
calculated density, and F(000). This residual electron density
was assigned to two and one half molecules of the water solvent,
[842/32 = 26e per ligand; two and one half molecules
of the water would give 25e].
;
_refine_diff_density_max         0.752
_refine_diff_density_min         -1.035
_refine_diff_density_rms         0.098
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.061
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     261
_refine_ls_number_reflns         3811
_refine_ls_number_restraints     256
_refine_ls_restrained_S_all      1.169
_refine_ls_R_factor_all          0.0724
_refine_ls_R_factor_gt           0.0618
_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^)+(0.0842P)^2^+193.7441P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1583
_refine_ls_wR_factor_ref         0.1667
_reflns_number_gt                3200
_reflns_number_total             3811
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2cc35340g.txt
_cod_data_source_block           1
_cod_original_cell_volume        17332.5(19)
_cod_original_sg_symbol_H-M      ' Fddd'
_cod_database_code               7108421