Construction of lanthanide metal‒organic frameworks with highly-connected topology based on a tetrapodal linker
Xue, Yun-Shan; Zhou, Lian; Liu, Mei-Pin; Liu, Su-Meng; Xu, Yan; Du, Hong-Bin; You, Xiao-Zeng; CrystEngComm 15 (2013) 6229–; doi:10.1039/c3ce40682b

data_7210303
_publ_section_title
;
 Construction of lanthanide metal--organic frameworks with
 highly-connected topology based on a tetrapodal linker
;
_journal_issue                   31
_journal_name_full               CrystEngComm
_journal_page_first              6229
_journal_paper_doi               10.1039/c3ce40682b
_journal_volume                  15
_journal_year                    2013
_chemical_formula_sum            'C84 H60 Eu4 O30 Si3'
_chemical_formula_weight         2241.43
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           66
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-C 2 2c'
_symmetry_space_group_name_H-M   'C c c m'
_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            4
_cell_length_a                   18.735(2)
_cell_length_b                   30.214(3)
_cell_length_c                   24.837(3)
_cell_measurement_reflns_used    6221
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      22.351
_cell_measurement_theta_min      2.295
_cell_volume                     14059(3)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker 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 0.986
_diffrn_measured_fraction_theta_max 0.986
_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  0.0898
_diffrn_reflns_av_sigmaI/netI    0.0910
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -25
_diffrn_reflns_limit_k_max       39
_diffrn_reflns_limit_k_min       -39
_diffrn_reflns_limit_l_max       33
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            43535
_diffrn_reflns_theta_full        28.39
_diffrn_reflns_theta_max         28.39
_diffrn_reflns_theta_min         1.52
_exptl_absorpt_coefficient_mu    1.835
_exptl_absorpt_correction_T_max  0.7703
_exptl_absorpt_correction_T_min  0.7335
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS;Bruker,2000
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.059
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             4392
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.17
_exptl_crystal_size_min          0.15
_platon_squeeze_details
;
;
_refine_diff_density_max         1.662
_refine_diff_density_min         -0.879
_refine_diff_density_rms         0.113
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.085
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     336
_refine_ls_number_reflns         8900
_refine_ls_number_restraints     106
_refine_ls_restrained_S_all      1.109
_refine_ls_R_factor_all          0.0775
_refine_ls_R_factor_gt           0.0481
_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^)+(0.0429P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1252
_refine_ls_wR_factor_ref         0.1299
_reflns_number_gt                4891
_reflns_number_total             8900
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3ce40682b.txt
_cod_data_source_block           2
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      'Cccm '
_cod_database_code               7210303