Two new Ln/Ag heterometallic-based conversion phosphors constructed by 1H-benzimidazole-5,6-dicarboxylic acid
Ding, Fu; Song, Xiao; Jiang, Bing; Smet, Philippe F.; Poelman, Dirk; Xiong, Gang; Wu, Yong-Li; Gao, En-Jun; Verpoort, Francis; Sun, Ya-Guang; CrystEngComm 14 (2012) 1753–; doi:10.1039/c1ce06012k

data_7207329
_publ_section_title
;
 Two new Ln/Ag heterometallic-based conversion phosphors constructed by
 1H-benzimidazole-5,6-dicarboxylic acid
;
_journal_issue                   5
_journal_name_full               CrystEngComm
_journal_page_first              1753
_journal_paper_doi               10.1039/c1ce06012k
_journal_volume                  14
_journal_year                    2012
_chemical_formula_sum            'C18 H9 Ag Eu N4 O13'
_chemical_formula_weight         749.12
_chemical_name_systematic
;
?
;
_space_group_IT_number           2
_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
_cell_angle_alpha                81.707(13)
_cell_angle_beta                 71.83(2)
_cell_angle_gamma                89.722(9)
_cell_formula_units_Z            2
_cell_length_a                   7.732(3)
_cell_length_b                   12.238(5)
_cell_length_c                   12.394(4)
_cell_measurement_reflns_used    50
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      25.02
_cell_measurement_theta_min      3.17
_cell_volume                     1101.6(7)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 0
_diffrn_measured_fraction_theta_full 0.974
_diffrn_measured_fraction_theta_max 0.974
_diffrn_measurement_method       0
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0800
_diffrn_reflns_av_sigmaI/netI    0.1367
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            6214
_diffrn_reflns_theta_full        25.02
_diffrn_reflns_theta_max         25.02
_diffrn_reflns_theta_min         3.17
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    3.790
_exptl_absorpt_correction_T_max  0.3960
_exptl_absorpt_correction_T_min  0.3125
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            0
_exptl_crystal_density_diffrn    2.258
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       0
_exptl_crystal_F_000             718
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.30
_refine_diff_density_max         1.351
_refine_diff_density_min         -3.064
_refine_diff_density_rms         0.310
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.079
_refine_ls_hydrogen_treatment    none
_refine_ls_matrix_type           full
_refine_ls_number_parameters     334
_refine_ls_number_reflns         3795
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.079
_refine_ls_R_factor_all          0.1257
_refine_ls_R_factor_gt           0.0814
_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^)+(0.0889P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1647
_refine_ls_wR_factor_ref         0.1956
_reflns_number_gt                2669
_reflns_number_total             3795
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c1ce06012k.txt
_cod_data_source_block           c100613h
_cod_original_sg_symbol_H-M      p-1
_cod_database_code               7207329