Two types of rare earth‒organic frameworks constructed by racemic tartaric acid
Jiang, Zhan-Guo; Lv, Yao-Kang; Cheng, Jian-Wen; Feng, Yun-Long; Journal of Solid State Chemistry 185 (2012) 253–263; doi:10.1016/j.jssc.2011.11.012

data_1563091
_publ_section_title
;
 Two types of rare earth--organic frameworks constructed by racemic
 tartaric acid
;
_journal_name_full               'Journal of Solid State Chemistry'
_journal_page_first              253
_journal_page_last               263
_journal_paper_doi               10.1016/j.jssc.2011.11.012
_journal_volume                  185
_journal_year                    2012
_chemical_formula_moiety         'C10 H12 Nd2 O18, 4(H2O)'
_chemical_formula_sum            'C10 H20 Nd2 O22'
_chemical_formula_weight         780.74
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/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                 91.412(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   6.0528(2)
_cell_length_b                   7.6177(3)
_cell_length_c                   22.3364(8)
_cell_measurement_reflns_used    7907
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      27.49
_cell_measurement_theta_min      1.80
_cell_volume                     1029.58(6)
_computing_cell_refinement       'SAINT (Bruker, 2006)'
_computing_data_collection       'APEXII (Bruker, 2006)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    'SHELXTL (Bruker, 2002)'
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.951
_diffrn_measured_fraction_theta_max 0.951
_diffrn_measurement_device_type  'Bruker APEX-II area-detector diffractometer'
_diffrn_measurement_method       '\w 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  0.0244
_diffrn_reflns_av_sigmaI/netI    0.0173
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            11815
_diffrn_reflns_theta_full        27.49
_diffrn_reflns_theta_max         27.49
_diffrn_reflns_theta_min         1.82
_diffrn_standards_decay_%        none
_diffrn_standards_interval_count none
_diffrn_standards_interval_time  none
_diffrn_standards_number         none
_exptl_absorpt_coefficient_mu    5.098
_exptl_absorpt_correction_T_max  0.2414
_exptl_absorpt_correction_T_min  0.2131
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1996)'
_exptl_crystal_colour            violet
_exptl_crystal_density_diffrn    2.518
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             752
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.28
_refine_diff_density_max         1.529
_refine_diff_density_min         -1.321
_refine_diff_density_rms         0.166
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.004
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     208
_refine_ls_number_reflns         2253
_refine_ls_number_restraints     17
_refine_ls_restrained_S_all      1.000
_refine_ls_R_factor_all          0.0438
_refine_ls_R_factor_gt           0.0417
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0137P)^2^+31.5340P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0933
_refine_ls_wR_factor_ref         0.0942
_reflns_number_gt                2147
_reflns_number_total             2253
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            JSSC-2012-185-253.CIF
_cod_data_source_block           d
_cod_original_sg_symbol_Hall     '-P 2ybc '
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               1563091