An AIEgen-based 3D covalent organic framework for white light-emitting diodes

Ding, Huimin; Li, Jian; Xie, Guohua; Lin, Guiqing; Chen, Rufan; Peng, Zhengkang; Yang, Chuluo; Wang, Baoshan; Sun, Junliang; Wang, Cheng

doi:10.1038/s41467-018-07670-4

Cited by 346 publications

(238 citation statements)

References 61 publications

Supporting

Mentioning

232

Contrasting

Unclassified

Order By: Relevance

“…All 3D‐TPB‐COFs showed several intense diffraction peaks, indicating long‐range ordering (Figure ). As the crystal sizes of all 3D‐TPB‐COFs were still too small to collect single‐crystal X‐ray diffraction data (Figure a, f,k), we decided to use 3D ED techniques, which have recently been applied as a powerful tool for the structure determination of 3D COFs . cRED data of all 3D‐TPB‐COFs single crystals were collected on a JEM2100 TEM at 99 K by continuously rotating the goniometer.…”

Section: Resultsmentioning

confidence: 99%

“…Alternatively, well‐crystalline powder samples can be synthesized, and atomic resolution can then hopefully be reached with powder X‐ray diffraction (PXRD) or 3D electron diffraction (ED) techniques . Unfortunately, all reported polycrystalline COF structures have relatively low resolutions of about 1.5–2 Å even with state‐of‐the‐art 3D ED techniques …”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Isostructural Three‐Dimensional Covalent Organic Frameworks

Wang

Gao

et al. 2019

Angewandte Chemie

Self Cite

View full text Add to dashboard Cite

Herein, we reported the designed synthesis of three isostructural three‐dimensional covalent organic frameworks (3D COFs) with ‐H, ‐Me, or ‐F substituents, which have similar crystallinity and topology. Their crystal structures were determined by continuous rotation electron diffraction (cRED), and all three 3D COFs were found to adopt a fivefold interpenetrated pts topology. More importantly, the resolution of these cRED datasets reached up to 0.9–1.0 Å, enabling the localization of all non‐hydrogen atomic positions in a COF framework directly by 3D ED techniques for the first time. In addition, the precise control of the pore environments through the use of different functional groups led to different selectivities for CO2 over N2. We have thus confirmed that polycrystalline COFs can be definitely studied to the atomic level as other materials, and this study should also inspire the design and synthesis of 3D COFs with tailored pore environments for interesting applications.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Isostructural Three‐Dimensional Covalent Organic Frameworks

Wang

Gao

et al. 2019

Angewandte Chemie

Self Cite

View full text Add to dashboard Cite

show abstract

“…An interesting imine‐linked 3D COF (Figure a) with TPE units (3D‐TPE‐COF) adopts a sevenfold interpenetrated pts topology with a P 2/ c space group . Excitation of 3D‐TPE‐COF at λ =450 nm results in a yellow emission at λ =543 nm with a quantum yield of 20 %, which is higher than that (6.6 %) of its model compound, thus showing the AIE property in the 3D COF as a result of folding.…”

Section: Built‐in Functionsmentioning

confidence: 99%

Covalent Organic Frameworks: Chemical Approaches to Designer Structures and Built‐In Functions

et al. 2019

View full text Add to dashboard Cite

A new approach has been developed to design organic polymers using topology diagrams. This strategy enables covalent integration of organic units into ordered topologies and creates a new polymer form, that is, covalent organic frameworks. This is a breakthrough in chemistry because it sets a molecular platform for synthesizing polymers with predesignable primary and high‐order structures, which has been a central aim for over a century but unattainable with traditional design principles. This new field has its own features that are distinct from conventional polymers. This Review summarizes the fundamentals as well as major progress by focusing on the chemistry used to design structures, including the principles, synthetic strategies, and control methods. We scrutinize built‐in functions that are specific to the structures by revealing various interplays and mechanisms involved in the expression of function. We propose major fundamental issues to be addressed in chemistry as well as future directions from physics, materials, and application perspectives.

show abstract

“…Ein interessantes aminverknüpftes 3D‐COF (Abbildung a) mit TPE‐Einheiten (3D‐TPE‐COF) nimmt eine siebenfach interpenetrierende pts ‐Topologie mit einer P 2/c‐Raumgruppe an . Nach Anregung bei λ =450 nm emittiert das 3D‐TPE‐COF gelb bei λ =543 nm mit einer Quantenausbeute von 20 %, die höher ist als jene (6.6 %) seiner Modellverbindung, ein Beleg für die AIE‐Eigenschaft im 3D‐COF als Folge der Faltung.…”

Section: Integrierte Funktionenunclassified

Kovalente organische Gerüstverbindungen: chemische Ansätze für Designerstrukturen und integrierte Funktionen

et al. 2019

View full text Add to dashboard Cite

Die Fortschritte der Chemie im letzten Jahrzehnt ebnen neue Wege zur Gestaltung organischer Polymere über Topologiediagramme. Dieser Ansatz ermöglicht das kovalente Zusammenfügen organischer Einheiten zu geordneten Topologien einer neuen Polymerform, den kovalenten organischen Gerüstverbindungen. Dies bedeutet einen Durchbruch in der Chemie, da nunmehr eine molekulare Plattform für die Synthese von Polymeren mit vorbestimmbaren Primärstrukturen und Strukturen höherer Ordnung zur Verfügung steht, ein zentrales Ziel, das über ein Jahrhundert lang angestrebt wurde, mit herkömmlichen Gestaltungsprinzipien aber nicht erreichbar war. Das neue Gebiet entwickelt seine eigenen Eigenschaften, die sich von jenen herkömmlicher Polymere unterscheiden. Unser Aufsatz fasst die Grundlagen und wichtigsten Fortschritte zusammen, wobei der Schwerpunkt auf der Chemie des Strukturdesigns liegt, einschließlich der Grundgedanken, Synthesestrategien und Kontrollverfahren. Wir prüfen integrierte, für die Strukturen spezifische Funktionen, indem wir verschiedene Wechselspiele und Mechanismen aufzeigen, die an der Expression der Funktion beteiligt sind. Wir benennen grundlegende Probleme, die in der Chemie und in zukünftigen Forschungsrichtungen der Physik und Materialwissenschaft zu adressieren sind, und beschreiben Anwendungsmöglichkeiten.

show abstract

An AIEgen-based 3D covalent organic framework for white light-emitting diodes

Cited by 346 publications

References 61 publications

Isostructural Three‐Dimensional Covalent Organic Frameworks

Isostructural Three‐Dimensional Covalent Organic Frameworks

Covalent Organic Frameworks: Chemical Approaches to Designer Structures and Built‐In Functions

Kovalente organische Gerüstverbindungen: chemische Ansätze für Designerstrukturen und integrierte Funktionen

Contact Info

Product

Resources

About