1,7,9,10‐Tetrasubstituted PMIs Accessible through Decarboxylative Bromination: Synthesis, Characterization, Photophysical Studies, and Hydrogen Evolution Catalysis
作者:Daniel Costabel、Artem Skabeev、Afshin Nabiyan、Yusen Luo、Johannes B. Max、Ashwene Rajagopal、Daniel Kowalczyk、Benjamin Dietzek、Maria Wächtler、Helmar Görls、Dirk Ziegenbalg、Yulian Zagranyarski、Carsten Streb、Felix H. Schacher、Kalina Peneva
DOI:10.1002/chem.202004326
日期:2021.2.24
In this work, we present a new synthetic strategy for fourfold‐substituted perylene monoimides via tetrabrominated perylene monoanhydrides. X‐ray diffraction analysis unveiled the intramolecular stacking orientation between the substituents and semicircular packing behavior. We observed the remarkable influence of the substituent on the longevity and nature of the excited state upon visible light excitation
在这项工作中,我们提出了一种通过四溴化苝单酐合成四重取代苝单酰亚胺的新策略。X射线衍射分析揭示了取代基之间的分子内堆积方向和半圆形堆积行为。我们观察到取代基对可见光激发时激发态的寿命和性质的显着影响。在聚(脱氢丙氨酸)-接枝-聚(乙二醇)接枝共聚物作为增溶模板的情况下,发色团能够敏化水溶液中的[Mo 3 S 13 ] 2−簇,从而在三天内稳定地由可见光驱动析氢。
Regioisomerically Pure 1,7-Dibromo-Substituted Perylene Bisimide Dyes: Efficient Synthesis, Separation, and Characterization
作者:Jiajun Ma、Leicheng Yin、Gang Zou、Qijin Zhang
DOI:10.1002/ejoc.201500206
日期:2015.5
utilized to confirm the chemical structures of the isomers. The 1,7-dibromo isomer obtained with 2-(dimethylamino)ethylamine in such a convenient and efficient way was further used to prepare 1,7-disubstituted perylene bisimide derivatives by saponification, amidation, and then bay-position substitutionreactions. These compounds exhibited a significant redshift and broadening of their absorption and emission
通过将常用的二溴苝-3,4,9,10-四羧酸二酐与 2-(二乙氨基)乙胺或 2- (二甲氨基)乙胺,然后通过常规柱色谱且无需重结晶从区域异构混合物中分离1,7-异构体。单独的区域异构体通过 1 H NMR 光谱和 HRMS 进行了充分表征。位于芳族区域和邻近酰亚胺氮原子的质子的信号被用来确认异构体的化学结构。将2-(二甲氨基)乙胺以这种方便有效的方式得到的1,7-二溴异构体进一步用于通过皂化、酰胺化、然后是湾位取代反应。这些化合物在光谱分析中表现出显着的红移和吸收和发射的展宽。
1,6-Disubstituted perylene bisimides: concise synthesis and characterization as near-infrared fluorescent dyes
作者:Liqiang Fan、Yanping Xu、He Tian
DOI:10.1016/j.tetlet.2005.04.137
日期:2005.6
imidization of perylene bisanhydride were reported. 1,6,7,12-Tetrabromoperylene bisimide was obtained in an optimized high yield. In addition, 1,6-disubstituted regioisomer was separated for the first time in isomerically pure form, and the structure was confirmed by 1H NMR, MS, element analysis, and photophysical measurements. By using a mixture of regioisomers 1,6- and 1,7-dibromo-perylene bisimide, 1,6-
报道了对bi二氢溴化物的溴化和随后的酰亚胺化的详细研究。以优化的高收率获得了1,6,7,12-四溴联苯二酰亚胺。另外,第一次以异构体纯的形式分离出1,6-二取代的区域异构体,并通过1 H NMR,MS,元素分析和光物理测量来确认结构。通过使用区域异构体1,6-和1,7-二溴-per双酰亚胺的混合物,合成,纯化1,6-二哌啶基per双酰亚胺(1,6-Piper-Pery),并在760的峰值处测量其荧光纳米 这些化合物可用作稳定的近红外吸收和荧光染料。
Optically Active Lyotropic Chromonic Liquid Crystal Based on Green Perylene Bisimide
作者:Jaishri J. Naidu、Seung-Han Shin、Kwang-Un Jeong、Myong-Hoon Lee
DOI:10.5012/bkcs.2010.31.9.2705
日期:2010.9.20
Recently, PBIs having ionic periphery have attracted much attention since they can form lyotropic chromonic liquid crystal-line (LCLC) phase in aqueous solution. In the LCLC phase, the molecules form a self-assembled columnar structure due to the π-π stacking of aromatic core and the hydrophilic interaction of ionic peripheries at water interface. A growing acceptance of the concept of chromonic phases