title: Synthesis and properties of a new red luminescence europium complex containing a 2-(benzimidazol-2-yl)-8-octyloxyquinoline as the second ligand.
abstract: A new Eu(III) complex, Eu(III)(DBM)(3) BIOQ, has been synthesized with dibenzoylmethane (DBM) as the first ligand and 2-(benzimidazol-2-yl)-8-octyloxyquinoline (BIOQ) as the second ligand. The stability of the complex was analysed by DSC-TG. The results show that the Eu(III) complex has a relatively high thermal stability with a melting point of 235 °C and a decomposition temperature (onset) of 252 °C. The fluorescence properties of the compound were also investigated. The fluorescence results reveal that the as-prepared complex shows the characteristic maximum emission spectra of Eu(III) at 611 nm (λ(ex) = 350 nm). In addition, the photoluminescence spectrum of the complex in the solid state exhibits a single and symmetrical emission band at 611 nm, with a full width at half-maximum of 4.7 nm, showing high colour purity. This finding indicates the possibility for the development of brighter red luminescent materials.
authors: School of Chemistry and Environment, Jiaying University, Meizhou, Guangdong, People's Republic of China. hnlsj2004@163.com.
authors: Shanji
authors: S
authors: Li
mesh_terms: D001562:Benzimidazoles / Q000737:chemistry*; D047188:Chalcones / Q000737:chemistry; D005063:Europium / Q000737:chemistry*; D008024:Ligands; D049449:Luminescence; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000138:chemical synthesis* / Q000737:chemistry*; D011804:Quinolines / Q000737:chemistry*; D013696:Temperature; D013818:Thermogravimetry
chemical_list: C582021:2-(benzimidazol-2-yl)-8-octyloxyquinoline; D001562:Benzimidazoles; D047188:Chalcones; D008024:Ligands; D009942:Organometallic Compounds; D011804:Quinolines; D005063:Europium; C061481:dibenzoylmethane