Self-assembly of lanthanide(iii) coordination polymers from a bifunctional 2-(pyridin-2-yl)-1H-imidazole-4,5-dicarboxylate ligand with the assistance of oxalate: syntheses, structures, luminescence, and magnetic properties
Zhang, Li-Yang; Lu, Li-Ping; Zhu, Miao-Li; Feng, Si-Si; CrystEngComm 19 (2017) 1953–; doi:10.1039/C7CE00149E

data_7227798
_publ_section_title
;
 Self-assembly of lanthanide(iii) coordination polymers from a
 bifunctional 2-(pyridin-2-yl)-1H-imidazole-4,5-dicarboxylate ligand with
 the assistance of oxalate: syntheses, structures, luminescence, and
 magnetic properties
;
_journal_issue                   14
_journal_name_full               CrystEngComm
_journal_page_first              1953
_journal_paper_doi               10.1039/C7CE00149E
_journal_volume                  19
_journal_year                    2017
_chemical_formula_sum            'C14 H14.75 N3 O17 Sm2'
_chemical_formula_weight         797.74
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2016/6
_audit_update_record
;
2017-02-28 deposited with the CCDC.
2017-03-06 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 101.61(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.5900(19)
_cell_length_b                   22.621(5)
_cell_length_c                   10.129(2)
_cell_measurement_reflns_used    10581
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      29.55
_cell_measurement_theta_min      2.08
_cell_volume                     2152.4(8)
_computing_structure_refinement  'SHELXL-2016/6 (Sheldrick, 2016)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  mar165
_diffrn_measurement_method       'oscillation mode'
_diffrn_radiation_type           synchrotron
_diffrn_radiation_wavelength     0.720
_diffrn_reflns_av_R_equivalents  0.0486
_diffrn_reflns_av_unetI/netI     0.0462
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       0
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       27
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            7064
_diffrn_reflns_point_group_measured_fraction_full 0.997
_diffrn_reflns_point_group_measured_fraction_max 0.997
_diffrn_reflns_theta_full        25.497
_diffrn_reflns_theta_max         25.497
_diffrn_reflns_theta_min         2.196
_diffrn_source                   'synchrotron, 3W1A at BSRF'
_exptl_absorpt_coefficient_mu    5.667
_exptl_absorpt_correction_T_max  0.5694
_exptl_absorpt_correction_T_min  0.3684
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(HKL SCALEPACK; Otwinowski & Minor, 1997)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    2.462
_exptl_crystal_description       block
_exptl_crystal_F_000             1519
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.20
_refine_diff_density_max         1.728
_refine_diff_density_min         -1.675
_refine_diff_density_rms         0.153
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.042
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     327
_refine_ls_number_reflns         3843
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      1.045
_refine_ls_R_factor_all          0.0250
_refine_ls_R_factor_gt           0.0243
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0256P)^2^+3.1145P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0563
_refine_ls_wR_factor_ref         0.0568
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3697
_reflns_number_total             3843
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c7ce00149e2.cif
_cod_data_source_block           Z5-Sm-zb40-14R1
_cod_depositor_comments
'Adding full bibliography for 7227795--7227805.cif.'
_cod_database_code               7227798
_shelx_shelxl_version_number     2016/6
_shelx_res_checksum              95700