Metal salt-induced regelation of acetone solutions of tris-urea low-molecular weight gelator and anions

Aoyama, Ryohei; Amakatsu, Mawo; Yamanaka, Masamichi

doi:10.1080/10610278.2010.514912

Cited by 5 publications

(2 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ligand molecules, which originally could not form gels, could be gelated by the introduction of metal ions. [14] For example, the reaction of palladium(II) with pyridyl ligands [15] or triphophine [16] complexes to give gels which have potential applications as catalysts. On the other hand, many gelator molecules contain chiral centers in their molecular structures, which could possibly induce to further properties related to their chirality through the metal ions.…”

Section: Introductionmentioning

confidence: 99%

Amphiphilic Schiff Base Organogels: Metal‐Ion‐Mediated Chiral Twists and Chiral Recognition

Jin

Zhang

Zhu

et al. 2012

Chemistry A European J

View full text Add to dashboard Cite

New amphiphilic gelators that contained both Schiff base and L-glutamide moieties, abbreviated as o-SLG and p-SLG, were synthesized and their self-assembly in various organic solvents in the absence and presence of metal ions was investigated. Gelation test revealed that o-SLG formed a thermotropic gel in many organic solvents, whilst p-SLG did not. When metal ions, such as Cu(2+), Zn(2+), Mg(2+), Ni(2+), were added, different behaviors were observed. The addition of Cu(2+) induced p-SLG to from an organogel. In the case of o-SLG, the addition of Cu(2+) and Mg(2+) ions maintained the gelating ability of the compound, whilst Zn(2+) and Ni(2+) ions destroyed the gel. In addition, the introduction of Cu(2+) ions caused the nanofiber gel to perform a chiral twist, whilst the Mg(2+) ions enhanced the fluorescence of the gel. More interestingly, the Mg(2+)-ion-mediated organogel showed differences in the fluorescence quenching by D- and L-tartaric acid, thus showing a chiral recognition ability.

show abstract

Section: Introductionmentioning

confidence: 99%

Amphiphilic Schiff Base Organogels: Metal‐Ion‐Mediated Chiral Twists and Chiral Recognition

Jin

Zhang

Zhu

et al. 2012

Chemistry A European J

View full text Add to dashboard Cite

show abstract

“…The addition of BF 3 · OEt 2 to acetone solutions 1 containing Cl – , Br – , or I – did not cause regelation. In contrast, some metal salts, such as ZnCl 2 , ZnBr 2 , CdCl 2 , FeCl 3 , SnCl 2 , and BiCl 3 , induced regelation in a nonselective manner, and the acetone solutions of 1 containing any halide ions produced gel after ultrasound irradiation (Figure d) 15…”

Section: Tris‐urea Lmwgs For Organic Solventsmentioning

confidence: 99%

Development ofC₃-Symmetric Tris-Urea Low-Molecular-Weight Gelators

Yamanaka

2016

The Chemical Record

Self Cite

View full text Add to dashboard Cite

This article describes recent developments in C3 -symmetric tris-urea low-molecular-weight gelators and their applications. The C3 -symmetric tris-ureas are excellent frameworks to form supramolecular polymers through noncovalent interactions. In organic solvents, hydrophobic tris-ureas form supramolecular gels. Amphiphilic tris-ureas form supramolecular gels in aqueous media. Functional supramolecular gels were prepared by introducing appropriate functional groups into the outer sphere of tris-ureas. Supramolecular hydrogels obtained from amphiphilic tris-ureas were used in the electrophoresis of proteins. These electrophoreses results showed several unique characteristics compared to typical electrophoreses results obtained using polyacrylamide matrices.

show abstract

Urea derivatives as low-molecular-weight gelators

Yamanaka

2013

J Incl Phenom Macrocycl Chem

View full text Add to dashboard Cite

Metal salt-induced regelation of acetone solutions of tris-urea low-molecular weight gelator and anions

Cited by 5 publications

References 31 publications

Amphiphilic Schiff Base Organogels: Metal‐Ion‐Mediated Chiral Twists and Chiral Recognition

Amphiphilic Schiff Base Organogels: Metal‐Ion‐Mediated Chiral Twists and Chiral Recognition

Development ofC₃-Symmetric Tris-Urea Low-Molecular-Weight Gelators

Urea derivatives as low-molecular-weight gelators

Contact Info

Product

Resources

About

Metal salt-induced regelation of acetone solutions of tris-urea low-molecular weight gelator and anions

Cited by 5 publications

References 31 publications

Amphiphilic Schiff Base Organogels: Metal‐Ion‐Mediated Chiral Twists and Chiral Recognition

Amphiphilic Schiff Base Organogels: Metal‐Ion‐Mediated Chiral Twists and Chiral Recognition

Development ofC3-Symmetric Tris-Urea Low-Molecular-Weight Gelators

Urea derivatives as low-molecular-weight gelators

Contact Info

Product

Resources

About

Development ofC₃-Symmetric Tris-Urea Low-Molecular-Weight Gelators