title: Luminescence of Tb3+ and Eu3+ doped amorphous zinc benzoates.
abstract: The Tb(3+) and Eu(3+) doped amorphous zinc benzoate were prepared. Their infrared absorption, emission and excitation spectra were measured. The luminescence mechanisms of Tb(3+) and Eu(3+) in the amorphous substrate were discussed. The bonding modes of OCO group to Zn(2+) ion have two of symmetric and asymmetric bridging bidentate. The energy of the S(1) pi,pi* excited state of benzene ring can be transferred to Tb(3+) and Eu(3+) ion, and results in characteristic emission from the 5D(4)-->(7)F(j) of Tb(3+) and 5D(0)-->(7)F(j) of Eu(3+), respectively.
authors.affiliation: Department of Chemistry, Wuhan University, Wuhan 430072, People's Republic of China.
authors.forename: Liangjie
authors.initials: L
authors.lastname: Yuan
authors.forename: Jutang
authors.initials: J
authors.lastname: Sun
authors.forename: Keli
authors.initials: K
authors.lastname: Zhang
mesh_terms: D001565:Benzoates / Q000737:chemistry*; D002254:Carbonates / Q000737:chemistry; D004305:Dose-Response Relationship, Drug; D005063:Europium / Q000032:analysis* / Q000737:chemistry; D007477:Ions; D049449:Luminescence; D013053:Spectrophotometry; D013725:Terbium / Q000032:analysis* / Q000737:chemistry; D014961:X-Ray Diffraction; D015032:Zinc / Q000737:chemistry*
chemical_list: D001565:Benzoates; D002254:Carbonates; D007477:Ions; D013725:Terbium; D005063:Europium; D015032:Zinc