Efficient and stable Sr<sub>3</sub>Eu<sub>2</sub>B<sub>4</sub>O<sub>12</sub> red phosphor benefiting from low symmetry and distorted local environment.
Li, Gui-Hua; Yang, Nian; Guo, Jian-Gang; Wang, Zheng-Liang; Cai, Ge-Mei; Wang, Xiao-Jun; Dalton transactions (Cambridge, England : 2003) 49 (2020) 3260–3271; doi:10.1039/c9dt04769g

data_7703959
_publ_section_title
;
 Efficient and stable
 Sr<sub>3</sub>Eu<sub>2</sub>B<sub>4</sub>O<sub>12</sub> red phosphor
 benefiting from low symmetry and distorted local environment.
;
_journal_issue                   10
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              3260
_journal_page_last               3271
_journal_paper_doi               10.1039/c9dt04769g
_journal_volume                  49
_journal_year                    2020
_chemical_formula_iupac          'Sr3 Eu2 B4 O12'
_chemical_formula_moiety         'B4 Eu2 O12 Sr0.365, 2.636(Sr)'
_chemical_formula_structural     'Eu2 Sr3 (B O3)4'
_chemical_formula_sum            'B4 Eu2.001 O12 Sr3.001'
_chemical_formula_weight         802.28
_chemical_melting_point          1573
_chemical_name_common            'Strontium Europium Oxide Borate'
_chemical_name_systematic        Sr3Eu2B4O12
_space_group_IT_number           62
_space_group_name_Hall           '-P 2ac 2n'
_space_group_name_H-M_alt        'P n m a'
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2n'
_symmetry_space_group_name_H-M   'P n m a'
_audit_update_record
;
2019-11-26 deposited with the CCDC.	2020-02-12 downloaded from the CCDC.
;
_cell_angle_alpha                90.0000
_cell_angle_beta                 90.0000
_cell_angle_gamma                90.0000
_cell_formula_units_Z            4
_cell_length_a                   7.29913(16)
_cell_length_b                   15.8333(3)
_cell_length_c                   8.64504(18)
_cell_measurement_temperature    297
_cell_volume                     999.10(4)
_computing_structure_refinement  FULLPROF
_diffrn_ambient_temperature      297
_diffrn_detector                 'scintillation counter'
_diffrn_measurement_device_type  'PANalytical X'Pert Pro'
_diffrn_radiation_monochromator  'equatorial mounted graphite'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.5418
_diffrn_source                   'rotating-anode X-ray tube'
_diffrn_source_target            Cu
_exptl_crystal_colour            white
_exptl_crystal_density_diffrn    5.3332
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1424.4
_pd_char_colour                  white
_pd_char_particle_morphology     plate-like
_pd_meas_2theta_range_inc        0.017000
_pd_meas_2theta_range_max        129.99100
_pd_meas_2theta_range_min        10.00400
_pd_meas_number_of_points        7059
_pd_meas_scan_method             step
_pd_prep_temperature             1473
_pd_proc_2theta_range_inc        0.017000
_pd_proc_2theta_range_max        130.1038
_pd_proc_2theta_range_min        10.1168
_pd_proc_info_excluded_regions   none
_pd_proc_ls_background_function  'square polynomial for each range'
_pd_proc_ls_pref_orient_corr
; I~corr~ = I~obs~[G~2~+(1-G~2~)exp(G~1~a^2^)], 
   axis (211),
;
_pd_proc_ls_profile_function     pseudo-Voigt
_pd_proc_ls_prof_R_factor        2.3180
_pd_proc_ls_prof_wR_expected     1.3615
_pd_proc_ls_prof_wR_factor       3.2207
_pd_proc_wavelength              1.540560
_pd_spec_mounting                'quartz capillary'
_pd_spec_mount_mode              reflection
_pd_spec_shape                   flat_sheet
_pd_spec_size_axial              15
_pd_spec_size_equat              35
_pd_spec_size_thick              1
_refine_ls_goodness_of_fit_all   2.05
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           fullcycle
_refine_ls_number_constraints    7
_refine_ls_number_parameters     134
_refine_ls_number_reflns         1806
_refine_ls_number_restraints     7
_refine_ls_R_I_factor            6.7604
_refine_ls_shift/su_max          0
_cod_data_source_file            c9dt04769g3.cif
_cod_data_source_block           Sr3Eu2B4O12
_cod_original_formula_sum        'O12 Sr3.001 Eu2.001 B4'
_cod_database_code               7703959
_publcif_datablock.id            {51941eb8-95c8-40dd-bf0b-e3970b13048d}
_pd_proc_ls_prof_cr_factor       22.7970
_pd_proc_ls_prof_cwr_factor      18.2487
_pd_proc_ls_prof_cwr_expected    7.7145
_pd_proc_ls_prof_chi2            5.5956
_pd_proc_ls_prof_echi2           5.7448
_publcif_funding_html
;
;