Syntheses, structures, photoluminescence, and magnetic properties of (3,6)- and 4-connected lanthanide metal-organic frameworks with a semirigid tricarboxylate ligand.
Su, Shengqun; Wang, Song; Song, Xuezhi; Song, Shuyan; Qin, Chao; Zhu, Min; Hao, Zhaomin; Zhao, Shuna; Zhang, Hongjie; Dalton transactions (Cambridge, England : 2003) 41 (2012) 4772–4779; doi:10.1039/c2dt12346k

data_7018719
_publ_section_title
;
 Syntheses, structures, photoluminescence, and magnetic properties of
 (3,6)- and 4-connected lanthanide metal-organic frameworks with a
 semirigid tricarboxylate ligand.
;
_journal_issue                   16
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              4772
_journal_page_last               4779
_journal_paper_doi               10.1039/c2dt12346k
_journal_volume                  41
_journal_year                    2012
_chemical_formula_moiety         'C21 H20.50 Er N3 O11.25'
_chemical_formula_sum            'C21 H20.5 Er N3 O11.25'
_chemical_formula_weight         662.16
_chemical_melting_point          ?
_chemical_name_systematic
;
?
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 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                 124.008(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   23.483(4)
_cell_length_b                   15.623(3)
_cell_length_c                   15.964(3)
_cell_measurement_reflns_used    4830
_cell_measurement_temperature    185(2)
_cell_measurement_theta_max      26.18
_cell_measurement_theta_min      1.67
_cell_volume                     4855.0(15)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    SHELXP-97
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      185(2)
_diffrn_detector_area_resol_mean 9.00cm
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_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  0.0613
_diffrn_reflns_av_sigmaI/netI    0.0738
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -29
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            13377
_diffrn_reflns_theta_full        26.18
_diffrn_reflns_theta_max         26.18
_diffrn_reflns_theta_min         1.67
_diffrn_standards_decay_%        none
_diffrn_standards_interval_count none
_diffrn_standards_interval_time  none
_diffrn_standards_number         none
_exptl_absorpt_coefficient_mu    3.523
_exptl_absorpt_correction_T_max  0.6979
_exptl_absorpt_correction_T_min  0.6201
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            'light yellow'
_exptl_crystal_density_diffrn    1.812
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       rod
_exptl_crystal_F_000             2604
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.11
_refine_diff_density_max         2.697
_refine_diff_density_min         -2.370
_refine_diff_density_rms         0.183
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.024
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     289
_refine_ls_number_reflns         4830
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      1.023
_refine_ls_R_factor_all          0.0610
_refine_ls_R_factor_gt           0.0451
_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^)+(0.0418P)^2^+36.1369P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1020
_refine_ls_wR_factor_ref         0.1109
_reflns_number_gt                3784
_reflns_number_total             4830
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2dt12346k.txt
_cod_data_source_block           11
_cod_depositor_comments
;
The following automatic conversions were performed:

'_chemical_melting_point' value 'not measured' was changed to '?' -
the value is undefined or not given.

'_symmetry_cell_setting' value
'Monoclinic' changed to 'monoclinic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_cell_volume        4854.9(16)
_cod_original_sg_symbol_H-M      C2/c
_cod_original_formula_sum        'C21 H20.50 Er N3 O11.25'
_cod_database_code               7018719