在这项工作中,合成了一系列苯甲酰溴衍生物,并用作合成取代的咪唑并[1,2- a ]吡啶的关键中间体。首先,在微波辐射的辅助下,通过苯乙酮的溴化反应获得苯甲酰溴分子,在15分钟的反应中获得产物4a-v,产率在50%至99%之间。随后,这些分子与2-氨基吡啶共轭,产生了咪唑并[1,2- a ]吡啶衍生物(7a-v)在60秒的反应中产率为24%至99%。相对于通过更繁琐的方法(如热辅助和机械辅助路线)获得的产量,确定了更高的产量。根据取代基的性质,在紫外线激发下观察到电磁光谱的紫色和蓝色区域中的强烈发光发射。这种对环境友好的方法有望构成一类重要的有机化合物,用于开发生物标志物,光化学传感器和医学应用。
Synthesis and Characterization of Novel Iridium Complexes with Ligands of 2-Phenylimidazo[1,2-<i>a</i>]pyridine Derivatives and Application to Organic Light-emitting Diode
Novel iridium complexes with ligands of 2-phenylimidazo[1,2-a]pyridines were prepared, and the emission maxima were found to be unusually dependent on the substituents on the phenyl ring. An OLED using the derivative was fabricated to show white emission.
Phosphorescent Iridium Complexes Based on 2-Phenylimidazo[1,2-<i>a</i>]pyridine Ligands: Tuning of Emission Color toward the Blue Region and Application to Polymer Light-Emitting Devices
complex is a mixture of Ir-d, phenyl-pi, and imidazole-pi orbitals. From this viewpoint, combination of electron-withdrawing substituents on the phenyl ring with the use of another ancillary ligand enabled further blue shifts (13, 468, 499 nm; 14, 464, 494 nm). This new system based on pip is one of the rare examples of iridium complexes whose emissions can be tuned to the blue region. Preliminary polymer
Metal complex compound and organic electroluminescent device using same
申请人:Okuda Fumio
公开号:US20100155713A1
公开(公告)日:2010-06-24
A metal complex compound having a special structure containing metals such as iridium. An organic electroluminescence device which comprises at least one organic thin film layer sandwiched between a pair of electrode consisting of an anode and a cathode, wherein the organic thin film layer comprises the above metal complex compound, which emits light by applying an electric voltage between the pair of electrode. An organic EL device employing the novel metal complex compound emits various phosphorous lights including blue light having an enhanced current efficiency and prolonged lifetime.
The present invention relates to metal complexes and to elec
tronic devices, in particular organic electroluminescent devices, com-pris
ing these metal complexes. M(L)n(L′)m (formula 1), where the compound of the gene
ral formula (1) contains a moiety M(L)n of the formula (2).
METAL COMPLEX COMPOUND AND ORGANIC ELECTROLUMINESCENT DEVICE USING SAME
申请人:IDEMITSU KOSAN CO., LTD.
公开号:EP1647554A2
公开(公告)日:2006-04-19
A metal complex compound having a special structure containing metals such as iridium. An organic electroluminescence device which comprises at least one organic thin film layer sandwiched between a pair of electrode consisting of an anode and a cathode, wherein the organic thin film layer comprises the above metal complex compound, which emits light by applying an electric voltage between the pair of electrode. An organic EL device employing the novel metal complex compound emits various phosphorous lights including blue light having an enhanced current efficiency and prolonged lifetime.