From 1D to 3D Lanthanide Coordination Polymers Constructed with Pyridine-3, 5-dicarboxylic Acid: Synthesis, Crystal Structures, and Catalytic Properties
Lin, Xiao-Ming; Niu, Ji-Liang; Wen, Pei-Xian; Lu, Yan-Na; Hu, Lei; Zhang, Da-Liang; Cai, Yue-Peng; RSC Adv.  (2016) –; doi:10.1039/C6RA13242A

data_7225774
_publ_section_title
;
 From 1D to 3D Lanthanide Coordination Polymers Constructed with
 Pyridine-3, 5-dicarboxylic Acid: Synthesis, Crystal Structures, and
 Catalytic Properties
;
_journal_name_full               'RSC Adv.'
_journal_paper_doi               10.1039/C6RA13242A
_journal_year                    2016
_chemical_formula_sum            'C24 H28 N4 O19 Sm2'
_chemical_formula_weight         977.20
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2016-04-04 deposited with the CCDC.
2016-06-27 downloaded from the CCDC.
;
_cell_angle_alpha                75.521(2)
_cell_angle_beta                 83.777(2)
_cell_angle_gamma                69.306(2)
_cell_formula_units_Z            2
_cell_length_a                   8.8475(18)
_cell_length_b                   10.716(2)
_cell_length_c                   18.895(4)
_cell_measurement_reflns_used    4501
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      28.17
_cell_measurement_theta_min      2.23
_cell_volume                     1622.2(6)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.981
_diffrn_measured_fraction_theta_max 0.981
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \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  0.1231
_diffrn_reflns_av_sigmaI/netI    0.0937
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            8394
_diffrn_reflns_theta_full        25.20
_diffrn_reflns_theta_max         25.20
_diffrn_reflns_theta_min         2.09
_exptl_absorpt_coefficient_mu    3.673
_exptl_absorpt_correction_T_max  0.7102
_exptl_absorpt_correction_T_min  0.5270
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    2.001
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             952
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         3.185
_refine_diff_density_min         -2.779
_refine_diff_density_rms         0.258
_refine_ls_extinction_coef       0.0009(4)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.026
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     387
_refine_ls_number_reflns         5733
_refine_ls_number_restraints     365
_refine_ls_restrained_S_all      1.078
_refine_ls_R_factor_all          0.0622
_refine_ls_R_factor_gt           0.0564
_refine_ls_shift/su_max          0.025
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0989P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1547
_refine_ls_wR_factor_ref         0.1605
_reflns_number_gt                4712
_reflns_number_total             5733
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c6ra13242a2.cif
_cod_data_source_block           Sm
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 4268 2015-11-12 08:31:59Z antanas 
;
_cod_original_sg_symbol_H-M      'P-1   '
_cod_database_code               7225774