工程异构体AIEgens含有四甲素用于双重记忆存储
Zicheng Liu1, Wenhao Wang1, Hongfei Liao1
1College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, China.
Chemical & biomedical imaging
|October 30, 2024
概括
新的四甲酸 (TPP) 衍生物表现出聚合诱导排放 (AIE) 和刺激反应性质. 这些分子显示出双重信息存储应用的潜力,利用光和酸触发器.
科学领域:
- 材料科学 材料科学 材料科学
- 有机化学 有机化学
- 光物理学的光学物理学
背景情况:
- 甲 (TPP) 是一种已知的聚合诱导排放光原体 (AIEgen),在OLED,传感器和生物治疗中具有应用.
- 在信息存储材料中TPP的使用尚未得到充分探索.
- 将TPP视为电子捐赠者,而不是接受者,为材料设计提供了新的途径.
研究的目的:
- 合成和研究用于信息存储的基于TPP的新型分子.
- 探索TPP衍生品的电子捐赠-接受器特性.
- 了解替代剂对AIE和刺激反应行为的影响.
主要方法:
- 合成了三种基于TPP的分子,其功能与烯和同位素胺单元相结合.
- 聚合诱导排放 (AIE) 属性的表征.
- 关于溶解染色效应的研究.
- 对光和酸刺激的反应的评估.
主要成果:
- 合成的分子表现出从TPP核心中继承的AIE行为.
- 从TPP (捐赠体) 到烯/氨酸 (接受体) 的分子内电荷转移会诱导显著的溶染色.
- 异构体胺单元影响吸收,溶色和AIE属性.
- 烯酸和胺组分别表现出不可逆的 (轻) 和可逆的 (酸) 反应.
结论:
- 基于TPP的AIEgens表现出可调节的光学特性和对刺激有反应的行为.
- 这些材料对开发双响应信息存储系统充满希望.
- 该研究强调了TPP作为功能性材料设计中的电子捐赠者的潜力.
相关概念视频
Stereoisomerism
11.8K
Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula.
Transition metal complexes often exist as geometric isomers, in which the same atoms are connected through the same types of bonds but with differences in their orientation in space. Coordination complexes with two different ligands in the cis and trans positions from a ligand of interest form isomers. For example, the octahedral [Co(NH3)4Cl2]+ ion has two isomers (Figure 1) In the cis...
Isomers are different chemical species that have the same chemical formula.
Transition metal complexes often exist as geometric isomers, in which the same atoms are connected through the same types of bonds but with differences in their orientation in space. Coordination complexes with two different ligands in the cis and trans positions from a ligand of interest form isomers. For example, the octahedral [Co(NH3)4Cl2]+ ion has two isomers (Figure 1) In the cis...
11.8K
Insensitive Nuclei Enhanced by Polarization Transfer (INEPT)
267
Insensitive Nuclei Enhanced by Polarization Transfer (INEPT) is an advanced Nuclear Magnetic Resonance (NMR) technique specifically designed to detect and enhance the signals of low-abundance nuclei, such as carbon-13 and nitrogen-15, in small molecules. The fundamental principle behind INEPT is the transfer of polarization from a more abundant and highly polarizable nucleus, typically hydrogen-1, to the low-abundance nucleus of interest. This process effectively boosts the NMR signal of the...
267
Structure of Amines
2.5K
The hybridized nitrogen atom in amines possesses a lone pair of electrons and is bound to three substituents with a bond angle of around 108°, which is less than the tetrahedral angle of 109.5°. However, the C–N–H bond angle is slightly larger at 112°, with a carbon–nitrogen bond length of 147 pm. This carbon–nitrogen bond length of of amines is longer than the carbon–oxygen bond of alcohols (143 pm) but shorter than alkanes’...
2.5K
Structural Isomerism
19.1K
Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can...
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can...
19.1K
¹H NMR: Pople Notation
1.7K
The Pople nomenclature system classifies spin systems based on the difference between their chemical shifts. Coupled spins are denoted by capital letters with subscripts indicating the number of equivalent nuclei. When the coupled nuclei have well-separated chemical shifts, they are assigned letters that are far apart in the alphabet, such as A and X. When the difference in chemical shifts is small, coupled nuclei are named using adjacent letters of the alphabet (AB, MN, or XY).
A proton...
A proton...
1.7K
Chirality at Nitrogen, Phosphorus, and Sulfur
5.7K
Chirality is most prevalent in carbon-based tetrahedral compounds, but this important facet of molecular symmetry extends to sp3-hybridized nitrogen, phosphorus and sulfur centers, including trivalent molecules with lone pairs. Here, the lone pair behaves as a functional group in addition to the other three substituents to form an analogous tetrahedral center that can be chiral.
A consequence of chirality is the need for enantiomeric resolution. While this is theoretically possible for all...
A consequence of chirality is the need for enantiomeric resolution. While this is theoretically possible for all...
5.7K


