Syntheses, structures and photoluminescent properties of lanthanide coordination polymers based on pyridyl functionalized imidazole dicarboxylic acid
Liu, Song-Juan; Huang, Yuanbiao; Lin, Zu-Jin; Li, Xin-Fa; Cao, Rong; RSC Advances 3 (2013) 9279–; doi:10.1039/c3ra41166d

data_7235267
_publ_section_title
;
 Syntheses, structures and photoluminescent properties of lanthanide
 coordination polymers based on pyridyl functionalized imidazole
 dicarboxylic acid
;
_journal_issue                   24
_journal_name_full               'RSC Advances'
_journal_page_first              9279
_journal_paper_doi               10.1039/c3ra41166d
_journal_volume                  3
_journal_year                    2013
_chemical_formula_sum            'C20 H25 Eu N6 O21'
_chemical_formula_weight         837.42
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_cell_setting           triclinic
_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
_cell_angle_alpha                67.246(3)
_cell_angle_beta                 78.097(3)
_cell_angle_gamma                71.811(3)
_cell_formula_units_Z            2
_cell_length_a                   8.9815(3)
_cell_length_b                   14.0907(4)
_cell_length_c                   14.1747(5)
_cell_measurement_reflns_used    6100
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      29.1729
_cell_measurement_theta_min      2.3936
_cell_volume                     1564.11(10)
_computing_cell_refinement
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.35.19 (release 27-10-2011 CrysAlis171 .NET)
(compiled Oct 27 2011,15:02:11)
;
_computing_data_collection
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.35.19 (release 27-10-2011 CrysAlis171 .NET)
(compiled Oct 27 2011,15:02:11)
;
_computing_data_reduction
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.35.19 (release 27-10-2011 CrysAlis171 .NET)
(compiled Oct 27 2011,15:02:11)
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      298(2)
_diffrn_detector_area_resol_mean 16.2083
_diffrn_measured_fraction_theta_full 0.981
_diffrn_measured_fraction_theta_max 0.981
_diffrn_measurement_device_type  'Xcalibur, Eos'
_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  0.0399
_diffrn_reflns_av_sigmaI/netI    0.0591
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            14952
_diffrn_reflns_theta_full        27.10
_diffrn_reflns_theta_max         27.10
_diffrn_reflns_theta_min         2.40
_exptl_absorpt_coefficient_mu    2.103
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.93068
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Agilent Technologies,
Version 1.171.35.19 (release 27-10-2011 CrysAlis171 .NET)
(compiled Oct 27 2011,15:02:11)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.778
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             836
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.10
_refine_diff_density_max         1.307
_refine_diff_density_min         -1.000
_refine_diff_density_rms         0.142
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.049
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     529
_refine_ls_number_reflns         6775
_refine_ls_number_restraints     22
_refine_ls_restrained_S_all      1.047
_refine_ls_R_factor_all          0.0520
_refine_ls_R_factor_gt           0.0411
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0513P)^2^+1.8172P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0962
_refine_ls_wR_factor_ref         0.1037
_reflns_number_gt                5842
_reflns_number_total             6775
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3ra41166d.cif
_cod_data_source_block           2-Eu
_cod_original_cell_volume        1564.11(9)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7235267