【摘要】 以二苯甲酰甲烷(DBM)为主配体、新配体2-(2-苯并咪唑基)-8-辛氧基喹啉为第二配体,合成了一种新的Eu(Ⅲ)配合物发光材料,对所得配合物的热性能、光性能和电化学性能进行了研究,结果表明,该配合物具有较高的热稳定性,熔点为235℃,起始分解温度为252℃。配合物的HOMO轨道能级(EHOMO)、LUMO轨道能级(ELUMO)及能隙(Eg)分别为-6.12、3.06和3.06 eV。荧光光谱分析表明,在固态条件下,配体吸收的能量全部转移给Eu(III)离子,配合物的荧光光谱在611 nm处显示一对称的单峰,其半峰宽为4.7 nm。更多还原

【Abstract】 A luminescent Eu(Ⅲ) complex,Eu(Ⅲ)(DBM)3BIOQ,was synthesized with dibenzoylmethane(DBM) as the first ligand and a new ligand,e.g.2-(benzimidazol-2-yl)-8-octyloxyquinoline(BIOQ),as the second ligand.The Eu(Ⅲ) complex exhibits relatively high thermal stability with a melting point of 235℃ and a decomposition temperature(onset) of 252℃.The energy levels of HOMO,LUMO and the energy gap(Eg) are-6.12,3.06 and 3.06 eV respectively.The emission spectrum of the complex in solid state(λex=350 nm) exhibits a single and symmetric emission band at 611 nm with a full width at half maximum of 4.7 nm.更多还原