具有双自由基和多自由基特征的多环烃通常在环化反应中表现出独特的反应活性。然而,此类反应很少用于构建π-延伸多环芳烃。在这里,我们描述了 S 形双螺旋单线态双自由基化合物的合成及其通过两级环环化轻松转化为前所未有的环化合物,其中包括:(1)双自由基前体的电环化和(2)Scholl 反应。通过原位光谱研究并辅以理论计算研究了反应机理。该反应序列产生光学解析的π-扩展[5]螺烯衍生物,其荧光量子产率高达85%,在远红至近红外区域圆偏振发光亮度高达6.05 M –1 cm –1 。该序列还产生了高度离域的环化合物分子,表现出大的电子离域、中等的荧光量子产率和多级氧化还原特性。
[EN] TRIAZINE COMPOUND AND ORGANIC LIGHT EMITTING DEVICE USING THE SAME<br/>[FR] COMPOSÉ DE TRIAZINE ET DISPOSITIF ÉLECTROLUMINESCENT ORGANIQUE UTILISANT CE COMPOSÉ
申请人:CANON KK
公开号:WO2010067894A1
公开(公告)日:2010-06-17
Provided is an organic light emitting device having a long continuous driving lifetime. The organic light emitting device includes an anode, a cathode, and an organic compound layer which is sandwiched between the anode and the cathode, in which: one of the anode and the cathode is transparent or semi-transparent; and the organic compound layer contains at least one kind of triazine compound represented by the following general formula (1): where n represents an integer of 1 or 2; Ar represents a fused polycyclic aromatic group which has three or more rings and may have a substituent; and T represents a triazine group represented by the following general formula (2): where R1 and R2 each represent a phenyl group or a phenyl group substituted by an alkyl group and may be identical to or different from each other.
Stable and twisted 5,6:12,13-dinaphthozethrene from angular π-extension
作者:Jinlian Hu、Qin Xiang、Jun Xu、Zhanqiang Xu、Guang Chen、Zhe Sun
DOI:10.1039/d1cc04113d
日期:——
concise and efficientsynthesis of an angularly extended stable zethrene derivative 1, designed to have more benzenoid rings in the closed-shell resonance form. This compound exhibited enantiomeric structures in the solidstate derived from the benzo[4]helicene structure and rapid interconversion in solution. Its far-red absorption, near-infrared emission and amphoteric redox properties were also revealed
triple (TH‐2), and double (DH‐2) helicenes containing [4]‐ and/or [5]helicene frameworks with dynamic and/or static helicene chirality in one step. Three multiple helicenes’ structures were determined by X‐ray crystallography and/or density functional theory calculations. The multiple TH‐2 and DH‐2 helicenes were separated into enantiomers because of the stable one and two [5]helicene moieties, respectively