Negatively curved molecular nanocarbons containing multiple heptagons are enabled by the Scholl reactions of macrocyclic precursors
作者:Ka Man Cheung、Yongming Xiong、Sai Ho Pun、Xingjian Zhuo、Qi Gong、Xingwei Zeng、Shilong Su、Qian Miao
DOI:10.1016/j.chempr.2023.05.028
日期:2023.10
negatively curved molecular nanocarbons containing different numbers of heptagons. The π-backbones containing multiple heptagons are significantly curved and rigid, as revealed by density functional theory calculations and X-ray crystallography. Some of these negatively curved π-backbones are interlocked through both face-to-face and edge-to-face π-π interactions in the crystals. Such unusual π-π interactions
将七边形嵌入多环芳族骨架中产生负弯曲分子纳米碳,这不仅是长期以来备受追捧的碳黑矿的关键片段,而且还为探索具有有趣特性的前所未有的纳米碳带来了新的机会。这项研究证明了大环前驱体的 Scholl 反应是合成含有不同数量七边形的负弯曲分子纳米碳的通用策略。密度泛函理论计算和 X 射线晶体学揭示,包含多个七边形的 π 主链具有明显的弯曲和刚性。其中一些负弯曲的π主链通过晶体中面对面和边对面的π-π相互作用而联锁。这种不寻常的π-π相互作用使得p型有机半导体成为可能,尽管其在场效应晶体管中的空穴迁移率受到真空沉积薄膜的非晶性质的限制。
ORGANIC ELECTROLUMINESCENCE DEVICE AND AMINE COMPOUND FOR ORGANIC ELECTROLUMINESCENCE DEVICE
申请人:Samsung Display Co., Ltd.
公开号:EP3628673A1
公开(公告)日:2020-04-01
An organic electroluminescence device according to embodiments of the present disclosure includes a first electrode, a second electrode opposite the first electrode, and at least one organic layer between the first electrode and the second electrode, wherein the at least one organic layer includes an amine compound represented by Formula 1, and HT in Formula 1 includes a pyridoindole moiety represented by Formula 2. Improved device efficiency and life characteristics may be achieved when the amine compound represented by Formula 1 is included in the organic electroluminescence device.
[EN] AZEPINO PYRIMIDINE DERIVATIVES AND MEDICAL USE THEREOF<br/>[FR] DÉRIVÉS D'AZÉPINO-PYRIMIDINE ET LEUR UTILISATION MÉDICALE<br/>[ZH] 氮杂环庚烷并嘧啶类衍生物及其医药用途
申请人:NANJING SHUNXIN PHARMACEUTICALS CO LTD OF CHIATAI TIANQING PHARMACEUTICAL GROUP