Rare-earth organic frameworks involving three types of architecture tuned by the lanthanide contraction effect: hydrothermal syntheses, structures and luminescence.
Deng, Zhao-Peng; Kang, Wei; Huo, Li-Hua; Zhao, Hui; Gao, Shan; Dalton transactions (Cambridge, England : 2003) 39 (2010) 6276–6284; doi:10.1039/c0dt00031k

data_7025874
_publ_section_title
;
 Rare-earth organic frameworks involving three types of architecture tuned
 by the lanthanide contraction effect: hydrothermal syntheses, structures
 and luminescence.
;
_journal_issue                   27
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              6276
_journal_page_last               6284
_journal_paper_doi               10.1039/c0dt00031k
_journal_volume                  39
_journal_year                    2010
_chemical_formula_moiety         'C20 H22 Er2 N12 O12'
_chemical_formula_sum            'C20 H22 Er2 N12 O12'
_chemical_formula_weight         957.02
_chemical_name_systematic
;
?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_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                 93.62(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.6707(19)
_cell_length_b                   11.308(2)
_cell_length_c                   24.631(5)
_cell_measurement_reflns_used    15939
_cell_measurement_temperature    295(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      3.07
_cell_volume                     2688.2(9)
_computing_cell_refinement       RAPID-AUTO
_computing_data_collection       'RAPID-AUTO (Rigaku Corporation, 1998)'
_computing_data_reduction
'CrystalStructure (Rigaku/MSC and Rigaku Corporation, 2002)'
_computing_molecular_graphics    SHELXL-97
_computing_publication_material  SHELXL-97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      295(2)
_diffrn_detector_area_resol_mean 10.000
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Rigaku RAXIS-RAPID'
_diffrn_measurement_method       \w
_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  0.0892
_diffrn_reflns_av_sigmaI/netI    0.0839
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            24834
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         3.07
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    6.290
_exptl_absorpt_correction_T_max  0.644
_exptl_absorpt_correction_T_min  0.390
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'ABSCOR (Higashi, 1995)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    2.365
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1832
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.07
_refine_diff_density_max         1.788
_refine_diff_density_min         -2.1
_refine_diff_density_rms         0.350
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.190
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     433
_refine_ls_number_reflns         6149
_refine_ls_number_restraints     8
_refine_ls_restrained_S_all      1.189
_refine_ls_R_factor_all          0.0784
_refine_ls_R_factor_gt           0.0664
_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^)+(0.0620P)^2^+29.7253P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1621
_refine_ls_wR_factor_ref         0.1692
_reflns_number_gt                5076
_reflns_number_total             6169
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c0dt00031k.txt
_cod_data_source_block           complex9
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7025874