Use of a bis-1,2,3-triazole gelator for the preparation of supramolecular metallogels and stabilization of gold nanoparticles

Abstract

In this work, a series of functional metallogels have been prepared using a bis-1,2,3-triazole gelator prepared using the isosteric substitution method.

Metal–organic gels and their derived materials for electrochemical applications

“…In addition, functional additives can be integrated into MOGs but do not function as gelation elements. MOGs can be used to load metal nanoparticles, 76,77 quantum dots, 35 and polyoxometalates 78,79 to yield hybrids/composites. For example, silver nanoparticles/MOGs hybrids have been employed for surface-enhanced Raman scattering (SERS) application 76 and catalysis.…”

Triphenylene Discotic Pd(II) Metallomesogens Based on Triazole Ligands Derived from the Click Reaction

“…Therefore, the N2 and N3 atoms of 1,2,3-triazole act as electron donors, enabling the formation of metal coordination bonds (Figure D–F), − hydrogen bonds (Figure G,H), , and ionic liquids (Figure I). , According to density functional theory calculations, the electron cloud density of the N3 atom in 1,2,3-triazole is higher than that of the N2 atom, suggesting that new chemical bonds were initially formed on the N3 atom (Figure J). The metal ions which are capable of forming complexes with 1,2,3-triazole include Ni­(II), Hg­(I), Cu­(I), Ru­(II), − Ir­(III), Fe­(II), Co­(II), Pd­(II), Pt­(II), and Ag­(I) . Additionally, the proton on the C5 atom in 1,2,3-triazole can be deprotonated to generate N -heterocyclic carbenes, which are potent neutral electron donors and can also act as ligands for transition metal catalysis (Figure K–N). − …”

Direct Organocatalytic Chemoselective Synthesis of Pharmaceutically Active 1,2,3-Triazoles and 4,5′-Bitriazoles

“…In recent years, chemists employed various strategies for the synthesis of functionalized 1,2,3-triazoles, as functionalized 1,2,3-triazoles found a wide range of applications in biological studies, therapeutic drug discovery, material chemistry, and agrochemical industry. − The thermally induced nonselective Huisgen azide–alkyne [3 + 2]-cycloaddition was transformed into the highly regiospecific 1,4-disubstituted-1,2,3-triazoles with high yields through the copper(I)-catalyzed azide–alkyne [3 + 2]-cycloaddition as click reaction by Sharpless and Meldal independently. − Apart from Cu-catalysis, azide–alkyne [3 + 2]-cycloadditions were also developed with ruthenium, − iridium, − nickel, − magnesium, and also using strain-promoted − manner for the construction of functionalized 1,2,3-triazoles. Besides the transition metal-mediated azide–alkyne [3 + 2]-cycloaddition reaction for 1,2,3-triazoles synthesis, Ramachary, Bressy, Wang, Dehaen, Paixao, and other groups developed alternative green synthetic methods of azide-carbonyl [3 + 2]-cycloadditions employing a variety of amines as organocatalysts. − …”