Synthesis and luminescence properties of lithium, zinc and scandium 1-(2-pyridyl)naphtholates
作者:Mikhail E. Burin、Vasily A. Ilichev、Anatoly P. Pushkarev、Dmitry L. Vorozhtsov、Sergey Yu. Ketkov、Georgy K. Fukin、Mikhail A. Lopatin、Alexander A. Nekrasov、Mikhail N. Bochkarev
DOI:10.1016/j.orgel.2012.09.021
日期:2012.12
1-(2-Pyridyl)naphth-2-ol (pynH) was synthesized from 2-bromopyridine and 1-bromo-2-hydroxynaphthalene and structurally characterized. This ligand and the known 2-(2-pyridyl)phenol (ppH) ligand were reacted with LiN(SiMe3)2, ZnEt2 and Sc[N(SiMe3)2]3 to prepare the new luminescent complexes Li(pp), Li(pyn), Zn(pyn)2, Sc(pp)3, Sc(pyn)3 and known Zn(pp)2. Photoluminescent (PL) spectra of the compounds
由2-溴吡啶和1-溴-2-羟基萘合成1-(2-吡啶基)萘-2-醇(pynH),并对其结构进行表征。使该配体和已知的2-(2-吡啶基)苯酚(ppH)配体与LiN(SiMe 3)2,ZnEt 2和Sc [N(SiMe 3)2 ] 3反应以制备新的发光络合物Li(pp) ,Li(pyn),Zn(pyn)2,Sc(pp)3,Sc(pyn)3和已知的Zn(pp)2。化合物的光致发光(PL)光谱包含单个宽带,最大值在447-473 nm。具有ITO / TPD /复合物/浴/ Yb配置的OLED器件发出蓝绿色发射光。这些设备的发射光谱类似于PL光谱。但是,电致发光(EL)的波段向长波长一侧偏移了20–40 nm。对于具有锌发光体Zn(pp)2的器件,在100 cd / m 2时测量的最大电流效率为15.3 cd / A,功率效率为8.12 lm / W ,而在22.5 V时,亮度最高为8300 cd /