Deep Red to Near-Infrared Emitting Rhenium(I) Complexes: Synthesis, Characterization, Electrochemistry, Photophysics, and Electroluminescence Studies
作者:Tao Yu、Daniel Ping-Kuen Tsang、Vonika Ka-Man Au、Wai Han Lam、Mei-Yee Chan、Vivian Wing-Wah Yam
DOI:10.1002/chem.201301841
日期:2013.9.27
groups, the emission bands were found to be red shifted. The nanosecond transient absorption spectra of two selected complexes were studied, which were suggestive of the formation of an initial charge‐separated state. Computational studies have been performed to provide further insight into the origin of the absorption and emission. One of the rhenium(I) complexes has been utilized in the fabrication of
一系列含三芳基胺的三羰基rh(I)配合物[BrRe(CO)3(N ^ N)](N ^ N = 5,5'-bis(N,N -N-二芳基-4- [ethen-1- yl]-苯胺)-2,2'-联吡啶是通过将a(I)金属中心引入施主-π-受体-π-施主结构而设计和合成的。所有复合物在680-708 nm左右的二氯甲烷中均显示出很强的无结构发射带,这是由于激发态的配体内电荷转移引起的(3从三芳基胺到联吡啶部分的特征。引入与苯胺基团连接的庞大的给电子体的五苯基苯单元后,发现发射带发生了红移。研究了两个选定配合物的纳秒瞬态吸收光谱,这表明形成了初始电荷分离态。已经进行了计算研究以提供对吸收和发射的起源的进一步了解。一种rh(I)配合物已用于有机发光二极管(OLED)的制造中,代表了实现深红色至近红外的(I)基OLED的实现的第一个示例,其发射范围不断扩大到800 nm