Responsive Gel-like Supramolecular Network Based on Pillar[6]arene–Ferrocenium Recognition Motifs in Polymeric Matrix

Xia, Wei; Ni, Mengfei; Yao, Chenhao; Wang, Xiaoliang; Chen, Dongzhong; Chen, Lin; Hu, Xiao‐Yu; Wang, Leyong

doi:10.1021/acs.macromol.5b00889

Cited by 89 publications

(85 citation statements)

References 63 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…[8a,15] Besides, as a unique type of neutral guests, fer rocene and its derivatives (G10) could interact with P6 cavity in aqueous media mostly driven by hydrophobic forces, while the binding affinities between their neutral states and P6 are severely dwindled in organic solvents. [16] Especially, cationmod ified azobenzene groups can also be included in pillar[n]arene cavities as photoresponsive guests (G11, G12). [17] On the basis of these fundamental studies, supramolecular switches that can be actuated by different triggers have been obtained by integrating the above guests with different pillar[n]arene derivatives.…”

Section: Supramolecular Switches Based On Pillar[n]arene Derivatives mentioning

confidence: 99%

Pillar[n]arene‐Based Supramolecular Switches in Solution and on Surfaces

2020

View full text Add to dashboard Cite

response to specific physical or chemical stimuli including, but not limited to, pH, light, redox, competitive agents, and tem perature. In particular, pseudorotaxanes, comprising of a rod component without bulky end groups encircled by a wheel entity via noncovalent bonds, can be employed as a superior class of candidates for supramolecular switches. [3] There fore, the study of macrocyclic receptors as the wheel entity of pseudorotaxanes has become one of the research hotspots in the field and received great attention. [4] Following the advance of macrocyclic chemistry based on crown ethers, cyclo dextrins, calixarenes, and cucurbit[n]urils, pillar[n]arenes (n = 5-15), first reported by Ogoshi et al. in 2008, have emerged as a rising star among synthesized macro cycles. [5] Pillar[n]arenes, composed of n hydroquinone units linked by methylene bridges at the 2 and 5positions, pos sess rigid pillarlike molecular structures and πelectron rich hydrophobic cavities that are favorable for the binding of electrondeficient guests. [6] Owing to the highly modi fiable rims of pillar[n]arenes, numerous pillar[n]arene derivatives with diverse functionalities can be facilely obtained either via the cyclization of pretailored 1,4dialkoxybenzene monomers or by postsynthetic modification. [7] The versatile functionalization of pillar[n]arenes beneficially affords their pos sible usages in both organic and aqueous phases, making the host−guest interactions with a large variety of ionic or neutral guests possible. [8] Thus far, pillar[n]arenes and their deriva tives have served as a prominent family of building blocks for the rational creation of supramolecular switches on the basis of the formation of various pseudorotaxanes upon their respon sive complexation with guest entities. [3] Although the dynamic activities of supramolecular switches are generally and fundamentally investigated in solution, growing interest has been focused on the transfer of supra molecular switches from solution phase to more condensed phases, that is, solid surfaces and interfaces. Through the incor poration on rigid solid supports of metal or other inorganic surfaces, the installed switches are able to produce amplified collective switching motions, concurrently modulating the sur face properties and endowing the inherent substrates with valid responses to specific triggers. [2a,9] Hence, the shifting of supra molecular switches from solution to solid surfaces denotes a significant step toward the realization of artificial nanosystems with operationally controllable properties, stimuliresponsive features, and multifunctionalities. The design and synthesis of new synthetic macrocycles has driven the rapid development of supramolecular chemistry and materials. Pillar[n]arenes, as a new type of macrocyclic compounds, are used as a promising type of building blocks for switchable supramolecular systems due to their versatile functionalization and the ability of binding toward various guest molecules. A number of guests can form inclusion complexes with...

show abstract

Section: Supramolecular Switches Based On Pillar[n]arene Derivatives mentioning

confidence: 99%

Pillar[n]arene‐Based Supramolecular Switches in Solution and on Surfaces

2020

View full text Add to dashboard Cite

show abstract

“…p-conjugated polymers comprising pillar [5]arenes H5 and guest cyanoalkyl groups 3 were synthesized by the reaction of dibenzocyclooctyne moieties and the corresponding azides.Mixing two p-conjugated poly- Reproducedw ith permission from Ref. [14].C opyright 2015 American Chemical Society.b )Representation of the formation of supramolecular polymer gels by mixing p-conjugated polymers composed of pillar [5]arenes H5 and cyanoalkyl moieties 3.R eproducedwith permission from Ref. [15].C opyright 2017 American Chemical Society.…”

Section: Polymer-based Supramolecular Gelsmentioning

confidence: 99%

Applications of Pillar[n]arene‐Based Supramolecular Assemblies

2018

View full text Add to dashboard Cite

Macrocycles are an important player in supramolecular chemistry. In 2008, a new class of macrocycles, "pillar[n]arenes", were first discovered. Research efforts in the area of pillar[n]arenes have elucidated key properties, such as their shape, reaction mechanism, host-guest properties, and their versatile functionality, which has contributed to the development of pillar[n]arene chemistry and their applications to various fields. This Minireview describes how pillar[n]arene-based supramolecular assemblies can be applied to supramolecular gel formation, reactions, light-harvesting systems, drug-delivery systems, biochemical applications, separation and storage materials, and surface chemistry.

show abstract

“…Polymerbasierte supramolekulare Organo-Gele mit Pillar[n]arenen wurden zuerst von Wang und Mitarbeitern beschrieben, die redoxempfindliche Wirt-Gast-Systeme zwischen Ferrocen und Pillar- [6]arenen entwickelten. [14] Die Copolymere 2 mit neutralen Ferrocen-Einheiten sowie H4 mit Pillar- [6]aren-Gruppen in der Seitenkette wurden synthetisiert (Abbildung 3a). Beim Mischen der beiden Polymere wurde keine Gelbildung beobachtet.…”

Section: Polymerbasierte Supramolekulare Geleunclassified

Supramolekulare Pillar[n]aren‐Aggregate und ihre Anwendungen

2018

View full text Add to dashboard Cite

Makrocyclen sind wichtige Komponenten der supramolekularen Chemie. 2008 wurde eine neue Klasse von Makrocyclen, die so genannten Pillar[n]arene, entdeckt. Die Forschungsaktivitäten im Bereich der Pillar[n]arene haben zur Aufklärung ihrer wichtigen Eigenschaften, wie ihrer Form, Reaktionsmechanismen, Wirt‐Gast‐Eigenschaften und vielseitigen Funktionalität, beigetragen, wodurch die Entwicklung der Pillar[n]aren‐Chemie und die Anwendung von Pillar[n]arenen in verschiedenen Gebieten vorangetrieben wurden. Dieser Kurzaufsatz beschreibt, wie supramolekulare Pillar[n]aren‐Aggregate für die supramolekulare Gelbildung, chemische Reaktionen, Lichtsammelsysteme, Wirkstofftransportsysteme, biochemische Anwendungen, Trenn‐ und Speichermaterialien sowie die Oberflächenchemie verwendet werden können.

show abstract

Responsive Gel-like Supramolecular Network Based on Pillar[6]arene–Ferrocenium Recognition Motifs in Polymeric Matrix

Cited by 89 publications

References 63 publications

Pillar[n]arene‐Based Supramolecular Switches in Solution and on Surfaces

Pillar[n]arene‐Based Supramolecular Switches in Solution and on Surfaces

Applications of Pillar[n]arene‐Based Supramolecular Assemblies

Supramolekulare Pillar[n]aren‐Aggregate und ihre Anwendungen

Contact Info

Product

Resources

About