title: Synthesis, characterization, photophysical and oxygen-sensing properties of a novel europium(III) complex.
abstract: In this paper, we report the synthesis, characterization, crystal structure, and photophysical properties of a novel Eu(3+) complex of Eu(DBM)(3)IPD, where DBM=1,3-diphenyl-propane-1,3-dione and IPD=4-(1H-imidazo[4,5-f][1,10]phenanthrolin-2-yl)-N,N-diphenylaniline. Its elementary application for oxygen-sensing application is also investigated by doping it into a silica matrix of MCM-41. Experimental data suggest that the 20mg/g doped Eu(DBM)(3)IPD/MCM-41 system exhibits a high sensitivity of 3.6 towards molecular oxygen with a good linear relationship of R(2)=0.9987. In addition, the 20 mg/g doped Eu(DBM)(3)IPD/MCM-41 system owns a quick response of 8 s towards oxygen, along with its excellent atmosphere insensitivity and photobleaching resistance. All these results suggest that both Eu(DBM)(3)IPD and Eu(DBM)(3)IPD/MCM-41 systems are promising candidates for oxygen-sensing optical sensors.
authors.affiliation: Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, PR China.
authors.forename: Nan
authors.initials: N
authors.lastname: Feng
authors.forename: Jing
authors.initials: J
authors.lastname: Xie
authors.forename: Dawei
authors.initials: D
authors.lastname: Zhang
mesh_terms: D018360:Crystallography, X-Ray; D005063:Europium / Q000737:chemistry*; D007093:Imidazoles / Q000138:chemical synthesis* / Q000737:chemistry*; D008024:Ligands; D008163:Luminescent Measurements / Q000379:methods*; D008958:Models, Molecular; D008968:Molecular Conformation; D010100:Oxygen / Q000032:analysis*; D010636:Phenols / Q000138:chemical synthesis* / Q000737:chemistry*; D015203:Reproducibility of Results; D013050:Spectrometry, Fluorescence; D013696:Temperature; D013997:Time Factors
chemical_list: D007093:Imidazoles; D008024:Ligands; D010636:Phenols; D005063:Europium; D010100:Oxygen