A new trinuclear Cu(ii) complex of inositol as a hydrogelator

Abstract

A trinuclear copper(II) complex with inositol and 2,2'-bipyridine forms a fibrous hydrogel at pH 12.4, the assembly of discrete trinuclear complex molecules to form the metallogel being assisted by H-bonding and inter- and intramolecular pi-stacking between the bipyridyls.

A Redox Responsive, Fluorescent Supramolecular Metallohydrogel Consists of Nanofibers with Single-Molecule Width

“…For example, metal complex-based organogelators have exhibited a wide range of interesting properties, such as anion binding, 11 fluorescence, 12 color switch, 13 catalysis, 14 and responses to ultrasound, 15 redox perturbation, 16 or temperature. 17 Encouraged by these successful developments of organogelators made of metal complexes, we choose to develop hydrogelators containing metal complexes and refer this type of hydrogelator as metallo-hydrogelators, which is a type of rarely explored building blocks of supramolecular hydrogels 18 despite the aforementioned properties of metal complexes.…”

Triazolyl‐Based Molecular Gels as Ligands for Autocatalytic ‘Click’ Reactions

“…Although the presence of the metal is not the main driving force for gelation, as observed for other reported metallogels, the metal–ligand interactions have some influence on the self‐assembly of the gelator. It has already been reported that metal–ligand interactions could influence the gelation, resulting in multifunctional metallogels with new interesting properties that could not be achieved in organogels, such as optical, catalytic or magnetic properties …”

“…As mentioned before,t he influence of the metal on the self-assembly of the gelator molecules was revealed for shorter carbon chain length gelator PhTzVal 3 ( Figure 3D). Although the presence of the metal is not the main driving force for gelation, as observedf or other reported metallogels, [22][23][27][28][29][30] the metal-ligand interactions have some influence on the self-assembly of the gelator.I th as already been reported that metal-ligand interactions could influence the gelation, resulting in multifunctional metallogels with new interesting properties that could not be achieved in organogels, such as optical, catalytic or magnetic properties. [31][32][33] The native gels andt he corresponding metallogels were also studied by circular dichroisms pectroscopy to gain deeper insight into the structurala rrangement of the resultants elf-assembled materials ( Figure 4).…”

High Order in a Self‐Assembled Iridium(III) Complex Gelator Towards Nanostructured IrO2 Thin Films

“…The synthesis and the comprehensive photophysical characterization of this complex has been the object of our recent report . In the present work, the iridium(III) [(ppy) 2 Ir(bpy)](CH 3 CH 2 OCH 2 CO 2 ) complex's ability to undergo gelification in water is thoroughly studied, in a range of concentrations between 3 % and 6 % in weight, making this derivative one of the few examples of metallogelators that self‐assemble in water to form supramolecular structures . The thorough characterization, performed through powder X‐ray diffraction (PXRD) analysis, in terms of supramolecular architecture of the self‐assembly of both the gel phase and the xerogel thin films obtained from the complete gel dehydration, is described.…”

“…[39] In the present work, the iridium(III) [(ppy) 2 Ir(bpy)](CH 3 CH 2 OCH 2 CO 2 )c omplex's ability to undergo gelificationi nw ater is thoroughly studied, in a range of concentrations between 3% and 6% in weight, making this derivativeone of the few examples of metallogelators that self-assemble in water to form supramolecular structures. [40][41][42][43] The thorough characterization, performed through powderX -ray diffraction (PXRD)a nalysis,i nt erms of supramolecular architecture of the self-assembly of both the gel phase and the xerogel thin films obtained from the complete gel dehydration, is described. Moreover,o rdered nanostructured IrO 2 thin films have been obtained through calcination of spin-coated gels and their structures are discussed.…”