搜索到90篇“ TRIPTYCENE“的相关文章
三蝶烯基电致发光材料
2024年
有机电致发光二极管具有自发光、效率高、结构轻薄,能实现透明、柔性等多样化设计等优点,在显示和照明等领域具有广阔的应用前景。三蝶烯是由三个苯环通过饱和碳连接而成的稳定、三维、刚性结构,且三个苯环间的共轭非常小,三个苯环上取代基不同还能实现非常稳定的手性,能为高性能发光材料的设计提供理想的刚性三维骨架,以提升发光材料的稳定性、调控发光材料分子间相互作用力(降低浓度淬灭同时提高成膜性)和稳定的手性环境。本文综述了将三蝶烯基团融入到电致发光电子传输层及发光层材料分子中的研究进展,并对三蝶烯基电致发光材料的未来进行了展望。通过分析和总结三蝶烯基团对材料性能的影响,明确其优势,以期抛砖引玉,使更多科研工作者将三蝶烯的优势在未来的新材料领域继续发扬光大。
徐慧慧汪青松茆俊杰童碧海张千峰
关键词:圆偏振光磷光材料有机发光二极管
Two Dimensional Triptycene End-Capping and Its Influence on the Self-Assembly of Quinoxalinophenanthrophenazines
2023年
In this report we investigated two-dimensionally triptycene end-capped QPPs in terms of their solution and solid-state behavior.For this purpose,a triphenylene based ortho-diamine decorated with two triptycenyl units as well as a phenylene diamine with two non-annulated triptycene units have been synthesized.Sequences of condensation reactions with a pyrene-based tetraketone and ortho-diamines yielded a series of QPPs and UV/Vis investigations of the corresponding compounds led to the conclusion,that the QPPs form dimers in solution,which was further supported by MALDI-TIMS-TOF-MS.Single-crystal X-ray analysis of the triply and quadruply triptycene end-capped QPPs furthermore showed shortπ-π-distances of 3.3-3.4?and a perfect shape match during the dimerization of the triply triptycenyl end-capped QPP making it possible synthon for crystal engineering.
Lisa Ro■Julius ReitemeierFarhad GhalamiWen-Shan ZhangJurgen H.GrossFrank RomingerSven M.ElbertRasmus SchroderMarcus ElstnerMichael Mastalerz
关键词:TRIPTYCENEAGGREGATION
基于手性三蝶烯的红光热激活延迟荧光聚合物及其有机发光二极管研究被引量:2
2023年
手性三蝶烯并吖啶(TpAc)具有独特的三维结构、同共轭效应和两个分离的反应位点.采用手性给体-受体(D*-A)共聚的设计策略,以TpAc作为电子给体与强电子受体4,7-二溴苯并[c][1,2,5]噻二唑(BTZ)直接偶联聚合,得到了非共轭型手性红光热激活延迟荧光(TADF)聚合物(R,R)-/(S,S)-pTpAcBTZ.所得聚合物最高占据分子轨道(HOMO)和最低未占分子轨道(LUMO)有效分离并获得小的ΔEST(0.08 eV),具有显著的红光TADF性质(λtoluene=663 nm).同时聚合物显示出镜像的红光圆偏振发光(CPL)信号,其|glum|值约为1.4×10^(-3).通过溶液旋涂法制备了红光发光二极管(OLEDs),所得器件最大发射峰为658 nm,其在1.0 cd/m^(2)的亮度下开启电压为3.6 V,最大外量子效率为2.0%.该非共轭型手性聚合物的设计和红光TADF性能有利于促进手性发光材料及电致红光器件等相关研究领域的发展.
王银凤李猛陈传峰
Precise Orientational Control of Electroactive Units Using a Tripodal Triptycene Scaffold to Direct Noncovalent Pairing at the Single Molecular Level
2023年
A break junction technique has been established to explore conductive behavior at the single molecular level,and recent interest has shifted toward the evaluation of bimolecular systems interacting through noncovalent intermolecular forces.This requires precise control over the orientation of the two molecules so that they can adapt an appropriate face-to-face arrangement between two electrodes.Herein,we present an approach using a tripodal triptycene scaffold that allows for accurate positioning of electroactive subunits with an upright configuration on substrate surfaces.We incorporated electron-donating tetrathiafulvalene or electron-accepting anthraquinone into the molecular scaffold and confirmed that the resulting molecules retain the electronic properties particular to their attached subunits.Self-assembled monolayers(SAMs)of these molecules were prepared on Au(111)and characterized by XPS and STM.STM break junction techniques were applied to the SAMs,revealing two electrical conduction regimes;one arises from single-molecules sandwiched between two electrodes,and the second from intermolecularly interacting homodimers that bridge between electrodes.This observation demonstrates the validity of the approach of using tripodal triptycene scaffolds to precisely direct electroactive subunits to undergo intermolecular pairing.We believe that the present work will provide a new avenue for evaluating the heterodimers at the single molecular level.
Colin J.MartinTomoya FukuiRyosuke TakeharaShintaro FujiiTakanori Fukushima
关键词:TRIPTYCENE
以三蝶烯为骨架的三氟甲磺酸芳香酯的合成
2022年
以廉价易得的1,8-二羟基蒽醌和1,4-二羟基蒽醌为起始原料,制备了关键中间产物1,8,13,16-四羟基三蝶烯和1,4,5,8-四羟基三蝶烯,然后分别与三氟甲磺酸酐发生酯化反应,得到了1,8,13,16-四[(三氟甲磺酰基)氧基]三蝶烯和1,4,5,8-四[(三氟甲磺酰基)氧基]三蝶烯,收率分别为46.2%和70.5%。产物结构通过HRMS、^(1)HNMR、^(19)FNMR确认。
石曼肖义
关键词:蒽醌精细化工中间体
Triptycene-derived heterocalixarene:A new type of macrocycle-based stationary phases for gas chromatography被引量:1
2021年
This work reports the investigation of a new triptycene-derived oxacalixarene(TDOC)as the stationary phase for gas chromatography(GC)with high-resolution performance for a wide range of analytes and isomers.The TDOC scaffold is composed of triptycene and 1,8-naphthyridine moieties,inherently differing from the conventional calixarenes in structures and properties.As a result,the TDOC column exhibited outstanding column efficiency of 5679 plates/m by n-dodecane at 120℃.It showed advantageous performance for separations of the mixtures with various analytes and achieved high resolution of diverse isomers(skeletal,positional and cis-/trans-isomers)from apolar to polar nature.Moreover,the TDOC column exhibited high thermal stability up to 310℃.To date,the TDOC-based materials have not been reported in chromatography.This work demonstrates the good potential of the triptycene-derived heterocalixarenes as a new class of stationary phases for chromatographic analyses.
Yongrui HeXiaohong YangMeiling QiChuanfeng Chen
关键词:ISOMERS
Spiro-fused bicyclo[3,2,2]octatriene-cored triptycene:synthesis,molecular packing,and functional aggregates被引量:1
2021年
Aggregate science has led to the existence of functional properties at the aggregate level that significantly differs from those of corresponding single-molecule species,leading to a number of novel conceptual materials with state-dependent functionality.For developing such materials,new molecular scaffolds that allow modulating the structural and functional properties of aggregates in a controlled manner could be extremely helpful.In this study,we report a class of spiro-fused bicyclo[3,2,2]octatriene triptycene derivatives with a unique 3 D molecular scaffolding structure that displays aggregation-induced emission(AIE)activity with bright solid-state blue luminescence.The core scaffold features a Y-shaped bicyclo[3,2,2]octatriene backbone and a vertical crossover arrangement of adjacent spiro-conjugated rings.Unlike classic bicyclo[2,2,2]octatrienes with high rigidity,this stereoscopic bicyclo[3,2,2]octatriene containing a seven-membered ring allows retaining certain flexibility in the molecular scaffold,which results in a weak fluorescence in dilute solutions(Φ_(F)<10%).However,the corresponding molecular aggregates emit intense fluorescence(Φ_(F)=50%-75%)and show prominent AIE activity because of the restriction of intramolecular scaffold motions.Moreover,in principle,these stereoscopic scaffold constructions with partially restricted flexibility facilitate the assembly of multiple different crystalline packing structures in both porous and nonporous forms depending on the growth conditions of crystalline aggregates.The obtained crystals with regular voids(12.85×6.89Aeach)show reversible luminescence in response to the adsorption/desorption of iodine vapor.These materials based on an unusual 3 D scaffold exhibit a high degree of structural modulation at the aggregate level and demonstrate potential applications in chemical sensing and flexible optoelectronics,which may open up the exploration of highly stereoscopic molecular building blocks for developing functional aggregates.
Qing LiuXian ChenZhibiao ZhouTingting HuangYanpei WangSheng XieZebing ZengBen Zhong Tang
关键词:TRIPTYCENE
A novel triptycene-terminated polymer used as the gas chromatographic stationary phase towards organic acidic/basic analytes and isomers
2021年
This work presents a novel strategy for engineering a GC stationary phase with high selectivity,inertness and thermal stability by introducing the 3Dπ-rich TP moieties to the terminals of a polar chain polymer.Herein,we provide the first example,i.e.,a new TP-terminated polycaprolactone polymer(TPP)as the stationary phase for GC analyses.As demonstrated,the TPP column achieved distinctly improved inertness to fatty acids and aldehydes,and dramatically enhanced thermal stability(about 100°C higher)over the PCL column.Also,the TPP column exhibited high resolving capability towards the positional isomers of phenols,anilines and alkylated/halobenzenes and showed good potential in detecting minor impurities in chemical products.Importantly,the proposed strategy is facile,feasible and generally applicable to analogous polymers.
Yongrui HeTiantian ShiMeiling Qi
关键词:SELECTIVITY
新型三蝶烯衍生物室温磷光材料的合成与表征被引量:1
2021年
为得到一种新的纯有机室温磷光材料,本文采用咔唑与溴作为修饰基团,设计并合成了一种新型的基于三蝶烯分子的电子给体-电子受体(D-A)型纯有机磷光材料Cz-Br。利用TD-DFT计算从理论上对分子的轨道结构进行了分析;利用核磁共振氢谱、核磁共振碳谱、质谱、X-射线单晶衍射等方法对其结构进行了相关表征;利用紫外-可见光谱仪、稳态/瞬态荧光光谱仪等仪器对其光物理性质进行了研究与探讨。结果表明,在室温下目标化合物用紫外光激发后在无定形态就具有肉眼可见的延迟发光现象,在晶体形态具有较长寿命(0.212 s)的室温磷光性质,可为目前的有机室温磷光材料设计提供参考。
雷普一陈磅宽
关键词:室温磷光
新型的三蝶烯基超交联多孔共聚物对孔雀石绿的吸附性能研究
2021年
三蝶烯和2,4-二氨基-6-苯基-1,3,5-三嗪单体在三氯化铁催化剂作用下,通过一步傅克烷基化(Friedel-Crafts)反应合成了一种新型三蝶烯基超交联多孔共聚物(N-HPC)。采用FT-IR、TEM和SEM等分析方法对获得的材料进行了表征。结果表明,N-HPC具有粗糙不规则的形态、丰富的孔结构以及良好的热稳定性。N-HPC对MG吸附180 min可达到平衡,对MG的最大吸附量(qmax)为150 mg/g,最佳吸附pH值为8.2。同时,N-HPC还具有良好的重复利用性,经过5次吸附解吸循环实验,N-HPC对孔雀石绿的去除率仍可达到70%以上。因此,N-HPC可作为一种理想、高效、易制备、可循环利用的染料废水处理新材料。
何妍鲍文利那兵郭柱雷吴云轩杨俊鑫袁定重罗太安
关键词:孔雀石绿吸附性

相关作者

陈传峰
作品数:190被引量:76H指数:7
供职机构:中国科学院化学研究所
研究主题:手性 圆偏振 杯芳烃 有机发光材料 分子识别