Chelating resin: Pyridine derivatives attached to poly(styrene) beads with spacer group

Nishide, Hiroyuki; Shimidzu, Naoki; Tsuchida, Eishun

doi:10.1002/app.1982.070271107

Cited by 34 publications

(11 citation statements)

References 8 publications

(1 reference statement)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…One year later, Tsuchida and co-workers tried to overcome the reduced activity of the ligands located at the inside of the resins. [181] As shown in Figure 45, they grafted polystyrene beads with soluble oligo-(ethylene oxide) spacers to allow the same degree of solvation of the pyridine ligand as in a homogeneous solution. In this case, the beads were cross-linked with 20 mol % divinylbenzene and the complexation behavior with Cu II ions was studied.…”

Section: Bipyridine-containing Resins and Beadsmentioning

confidence: 99%

“…Grafted poly(ethylene oxide) spacers enhance the solubility of the complexing unit. [181] In their research towards the photochemical behavior of polymers with covalently bound tris(bipyridine)ruthenium complexes, Bourdelande and de March prepared a system with complexes directly anchored to a hydrophobic polystyrene bead. [182] This system was far less efficient than the monomeric [Ru(bpy) 3 ] 2 complex with respect to photoinduced electron-transfer from the complex to methyl viologen.…”

Section: Bipyridine-containing Resins and Beadsmentioning

confidence: 99%

“…[182] This system was far less efficient than the monomeric [Ru(bpy) 3 ] 2 complex with respect to photoinduced electron-transfer from the complex to methyl viologen. The authors assumed that the hydrophobicity of the polymeric backbone prevented the approach of water-solvated methyl viologen; therefore they introduced, similar to Tsuchida and co-workers (Figure 45), [181] water-soluble tri-(ethylene oxide) spacers. [183] However, though they demonstrated the spectroscopic properties of the polymeric Ru IIcomplexes to be similar to those of [Ru(bpy) 3 ], the photochemical behavior was different.…”

Section: Bipyridine-containing Resins and Beadsmentioning

confidence: 99%

See 2 more Smart Citations

Macromolecules Containing Bipyridine and Terpyridine Metal Complexes: Towards Metallosupramolecular Polymers

Schubert

Eschbaumer

2002

Angew. Chem. Int. Ed.

691

333

View full text Add to dashboard Cite

The ability of a broad range of N-heterocycles to act as very effective and stable complexation agents for several transition metal ions, such as cobalt(II), copper(II), nickel(II), and ruthenium(II), has long been known in analytical chemistry. This behavior was later utilized in supramolecular chemistry for the construction of highly sophisticated architectures, such as helicates, racks, and grids. The discovery of macromolecules by Staudinger in 1922 opened up avenues towards sophisticated materials with properties hitherto completely unknown. In the last few decades, the combination of macromolecular and supramolecular chemistry has been attempted by developing metal-complexing and metal-containing polymers for a wide variety of applications that range from filtration to catalysis. The stability of the polymer-metal complex is a fundamental requirement for such applications. In this respect, the use of bi- and terpyridines as chelating ligands is highly promising, since these molecules are known to form highly stable complexes with interesting physical properties with transition-metal ions. A large number of different structures have been designed for many different applications, but polymers based on the application of coordinative forces have been prepared in a few cases only. Furthermore, the synthetic procedures applied frequently resulted in low yields. During the last few years, strong efforts have been made in the direction of self-assembling and supramolecular polymers as novel materials with "intelligent" and tunable properties. In this review, an overview of this active area at the interface of supramolecular and macromolecular chemistry is given.

show abstract

Section: Bipyridine-containing Resins and Beadsmentioning

confidence: 99%

Section: Bipyridine-containing Resins and Beadsmentioning

confidence: 99%

Section: Bipyridine-containing Resins and Beadsmentioning

confidence: 99%

See 1 more Smart Citation

Macromolecules Containing Bipyridine and Terpyridine Metal Complexes: Towards Metallosupramolecular Polymers

Schubert

Eschbaumer

2002

Angew. Chem. Int. Ed.

691

333

View full text Add to dashboard Cite

show abstract

“…The fact that metal-containing beads showed a much smoother surface compared to the more wrinkled one of a ligand-functionalized bead has already been reported for a similar system. [19] It must be taken into account, though, that the observed differences could also result from the sputtering of the beads with gold, which is required for conductivity. Nevertheless, the observed features are characteristic for all investigated beads, also regarding the fact that all the samples have been prepared according to the same procedure (spreading on glass plates from a droplet of deionized water and evaporation of the water under vacuum for 20 h).…”

Section: Characterization With Sem and Afmmentioning

confidence: 99%

Terpyridine‐Functionalized TentaGel Microbeads: Synthesis, Metal Chelation and First Sequential Complexation

Schubert

Alexeev

Andres

2003

Macro Materials & Eng

View full text Add to dashboard Cite

The functionalization of polystyrene/poly(ethylene glycol) TentaGel® microbeads (d = 20 μm) with 2,2′:6′,2″‐terpyridine units is described resulting in a material with easily accessible ligands which possess an excellent affinity for transition metal ions. The subsequent loading with different metal ions via metal‐to‐ligand complexation yielded the corresponding CoII, NiII, FeII, and CuII modified beads. The isolated materials were investigated in detail utilizing UV/vis spectroscopy, optical microscopy, atomic absorption spectroscopy (AAS), scanning electron microscopy (SEM), and atomic force microscopy (AFM). Moreover, grafting of free terpyridine moieties via ruthenium(II)/ruthenium(III)‐chemistry onto the beads is demonstrated. This opens‐up new pathways for the selective modification of such microbeads and the preparation of functional materials.Scheme of the formation of bis‐terpyridine‐metal complexes bound to polystyrene/poly(ethylene glycol) TentaGel® microbeads.magnified imageScheme of the formation of bis‐terpyridine‐metal complexes bound to polystyrene/poly(ethylene glycol) TentaGel® microbeads.

show abstract

“…Für das Rhodiumsystem wurden dabei Turnover ‐ Zahlen von bis zu 300 bestimmt. Tsuchida et al versuchten, die geringe Aktivität der Liganden im Innern des Harzes zu erhöhen 181. Wie in Abbildung 45 dargestellt, derivatisierten sie Polystyrol‐Beads mit Pfropfen aus löslichen Oligo(ethylenoxid)‐Ketten, um so eine Löslichkeit der Bipyridinliganden zu erreichen, die der in einer homogenen Lösung nahekommt.…”

Section: Makromoleküle Mit Bipyridinligandenunclassified

MakromolekÃ¼le mit Bipyridin- und Terpyridinkomplexen als VerknÃ¼pfungsstellen: erste Schritte auf dem Weg zu metallo-supramolekularen Polymeren

2002

View full text Add to dashboard Cite

Die Fähigkeit von Stickstoffheterocyclen, Übergangsmetallionen wie Cobalt(II), Kupfer(II), Nickel(II) und Ruthenium(ii) außerordentlich effektiv und stabil zu komplexieren, wird schon seit langem in der Analytischen Chemie angewendet. In der Supramolekularen Chemie nutzte man später diese Eigenschaft zum Aufbau anspruchsvoller Strukturen wie Helicate, Leitern oder Gitter. Die Entdeckung der Makromoleküle durch Staudinger eröffnete bereits 1922 den Zugang zu einer Materialklasse mit bis dahin völlig unbekannten Eigenschaften. Erst in den letzten Jahrzehnten jedoch wurde versucht, die Makromolekulare und Supramolekulare Chemie durch die Entwicklung von metallkomplexierenden und metallhaltigen Polymeren mit Anwendungen von der Filtration bis zur Katalyse zu vereinen. Die entscheidende Anforderung an Materialien für solche Anwendungen ist die Stabilität der Polymer‐Metallkomplexe. Besonders vielversprechend ist die Verwendung der mehrzähnigen Bipyridin‐ und Terpyridin‐Chelatliganden, die sehr stabile Übergangsmetallkomplexe mit beeindruckenden physikalischen Eigenschaften bilden. Ein breites Spektrum an Strukturen ist für eine ebenso umfangreiche Zahl von Anwendungen entwickelt worden. Die Synthese von Polymeren auf Basis koordinativer Wechselwirkungen wurde dagegen bis vor wenigen Jahren nur in sehr wenigen Fällen realisiert und führte darüber hinaus häufig zu geringen Ausbeuten. In den vergangenen Jahren jedoch erlebte die Forschung zu selbstorganisierten und supramolekularen Polymeren als neue, „intelligente“ Materialien mit einstellbaren Eigenschaften einen Höhenflug. In diesem Aufsatz geben wir einen Überblick über dieses Gebiet an der Schnittstelle von Supramolekularer und Makromolekularer Chemie.

show abstract

Chelating resin: Pyridine derivatives attached to poly(styrene) beads with spacer group

Cited by 34 publications

References 8 publications

Macromolecules Containing Bipyridine and Terpyridine Metal Complexes: Towards Metallosupramolecular Polymers

Macromolecules Containing Bipyridine and Terpyridine Metal Complexes: Towards Metallosupramolecular Polymers

Terpyridine‐Functionalized TentaGel Microbeads: Synthesis, Metal Chelation and First Sequential Complexation

MakromolekÃ¼le mit Bipyridin- und Terpyridinkomplexen als VerknÃ¼pfungsstellen: erste Schritte auf dem Weg zu metallo-supramolekularen Polymeren

Contact Info

Product

Resources

About