Despite recent advances in synthetic nanometer-scale tubular assembly, conferral of dynamic response characteristics to the tubules remains a challenge. Here, we report on supramolecular nanotubules that undergo reversible contraction-expansion motion accompanied by an inversion helical chirality. Bent-shaped aromatic amphiphiles self-assemble into hexameric macrocycles aqueous solution, forming chiral spontaneous one-dimensional stacking with mutual rotation same direction. The adjacent...

We have prepared amphiphilic dumbbell molecules consisting of hydrophobic alkyl chains and hydrophilic oligoether dendrons at each end the rod segment. The molecular dumbbells, in aqueous solution, self-assemble into toroids as an intermediate nanostructure between spherical long cylindrical micelles. formation toroidal structure is likely to originate from side by connections discrete bundles through combination strong interactions anisotropic aggregation segments.

Abstract Despite recent advances in the porous materials for efficient removal of dissolved organic pollutants from water, regeneration characteristics reuse with preventing secondary contamination remains a challenge. Here, novel supramolecular absorbents hydrophobic pore are prepared by self‐assembly propeller‐shaped aromatic amphiphiles. The assembly folded propeller provides mesoporous environment within segments, which is suitable waste water. efficiency found to be 92% and 90% ethinyl...

Dumbbells that are not dumb: Dumbbell-shaped molecules based on a hexa-p-phenylene derivative self-assemble into well-defined left-handed helical fibers in aqueous solution. These nanofibers convert reversibly hollow nanocapsules by intercalation of aromatic guest (red spheres).

Control of the size and shape molecular assemblies on nanometer scale in aqueous solutions is very important for regulation biological functions. Among well-defined supramolecular structures organic amphiphiles, one-dimensional nanofibers have attracted much attention because their potential applications biocompatible materials. Although progress has been made field self-assembled nanofibers, ability to control fiber length remains limited. The approach presented herein overcomes this...

Despite the recent development of highly efficient and stable metal catalysts, conferral regulatory characteristics to catalytic reaction in heterogeneous systems remains a challenge. Novel supramolecular nanotubules were prepared by alternative stacking from trimeric macrocycles, which was found be able coordinate with Pd cations. The complexes exhibited high performance for C-C coupling reaction. Notably, tubular catalyst observed controlled reversible assembly showed superior activity,...

The highlight of self-assembly is the reversibility various types noncovalent interactions which leads to construct smart nanostructures with switchable pores. Here, we report spontaneous formation inflatable nanofibers through hollow internal channels triggered by guest encapsulation. molecules that form this unique consist a bent-shaped aromatic segment connected m-pyridine unit and hydrophilic dendron at its apex. segments self-assemble into paired dimers stack on top one another thin...

Photosensitizers (PSs) with nano- or micro-sized pore provide a great promise in the conversion of light energy into chemical fuel due to excellent promotion for transporting singlet oxygen (1O2) active sites. Despite such hollow PSs can be achieved by introducing molecular-level porous skeleton, however, catalytic efficiency is far away from imagination because problems deformation and blocking. Here, very ordered 1O2 generation are presented cross-linking hierarchical laminates originated...

Self-assembling rigid-flexible block molecules consisting of a laterally extended aromatic segment and different lengths hydrophilic coils were synthesized characterized. The molecule based on long poly(ethylene oxide) coil (1), in the melt state, shows an unidentified columnar structure, whereas with shorter (2) self-organizes into oblique structure. Further decrease length as case 3, heating, induces rectangular structure addition to mesophase. In diethyl ether, 1 2 observed self-assemble...

Since organic pollutants in water resources have raised concerns on aquatic ecosystems and human health, mechanical machines such as a nanopump for rapid efficient removal of from with regeneration properties remains challenge. Here, pH-responsive artificial pump left-handed porous tubules into right-handed solid fibers was presented by the self-assembly bent-shaped aromatic amphiphiles. The amphiphile pH-sensitive segment demonstrated hexameric macrocycles, which could contract dimeric...

Amphiphilic rod–coil compounds have excellent photophysical properties and can be assembled into supramolecular nanostructures of different sizes in water or polar solvents. Herein, we synthesized the amphiphilic 2N-DSA, 4N-DSA, 6N-DSA with 9,10-distyrylanthracene (DSA) as core a naphthalene unit terminal group that connected DSA through tetraethylene glycol chain. These aggregation-induced emission (AIE) aqueous solution are worm-like fragments spherical assemblies, defending volume ratio...

Vielseitige Hanteln: Hantelförmige Moleküle auf der Basis eines Hexa-p-phenylenderivats selbstorganisieren sich in wässriger Lösung gut definierte linksgängige helicale Fasern. Diese helicalen Nanofasern gehen bei Einlagerung von aromatischen Gastmolekülen (rote Kugeln) reversibel hohle Nanokapseln über.

We have demonstrated that fibrillar aggregates formed from the self-assembly of a dumbbell-shaped rod amphiphile undergo reversible chiral–non-chiral transition triggered by temperature.

Rod–coil molecules, consisting of a flexible and rigid block, have strong capacity to self-assemble into variety ordered nanostructures in the bulk state. In this paper, we report synthesis characterization self-assembly behavior coil–rod–coil oligomers. These new materials consist five biphenyls linked together with ether bonds as rod segment incorporate lateral methyl or ethyl groups center building block poly(ethylene oxide) (PEO) degree polymerization (DP) 7, 12 17 coil segments....

A carbazole end-capped rod amphiphile was synthesized and observed to self-assemble into non-chiral fibers in both methanol water solutions even though the molecule contains a chiral oligoether dendron. Remarkably, mixture of induces supramolecular chirality nanofibers caused by conformational change hydrophobic aromatic rods reduction hydrodynamic volume ethylene oxide chains. The helicity induction also takes place heating solution. Furthermore, helical aqueous solution were further...

Self-assembled nanomaterials composed of amphiphilic oligomers with functional groups have been applied in the fields biomimetic chemistry and on-demand delivery systems. Herein, we report assembly behavior unique properties an emergent n-shaped rod–coil molecule containing azobenzene (AZO) group upon application external stimulus (thermal, UV light). The molecules comprising aromatic segment based on anthracene, phenyl linked groups, hydrophilic oligoether (chiral) segments self-assemble...

Abstract The rod‐coil molecules with n‐shaped rod building block, consisting of an anthracene unit and two biphenyl groups linked together acetylenyl bonds at the 1,8‐position as a rigid segment, alkyl or alkyloxy chains various length (i.e., methoxy‐ ( 1 ), octyl‐ 2 hexadecyl‐ 3 )) 10‐position poly(ethylene oxide) number repeating units 7 connected coil segments were synthesized. molecular structures characterized by H NMR MALDI‐TOF mass spectroscopy. self‐assembling behavior new type 1–3...

Despite recent advances in synthetic nanometer-scale helical assembly, control of supramolecular chirality remains a challenge. Here, we describe the fine-tuning shape and morphology transitions twisted assembly from dumbbell-shaped rigid-flexible amphiphile triggered by concentration. The 2 self-assembles into nonchiral 3D columnar crystals with alternative packing aromatic segment solid state. Remarkably, addition water solid, achiral crystal transforms 2D hexagonally ordered liquid gel...