Ambient afterglow luminescence from metal-free organic chromophores would provide a promising alternative to the well-explored inorganic phosphors. However, realization of air-stable and solution-processable systems with long-lived triplet or singlet states remains formidable challenge. In present study, delayed sensitization state dyes via phosphorescence energy transfer phosphors is proposed as an strategy realize "afterglow fluorescence". This concept demonstrated phosphor donor...

Reaping the benefit: A supramolecular light-harvesting antenna has been developed by encapsulating small amounts of a π-conjugated oligomer (molecular wire) within self-assembled gel-forming donor scaffold. The tapes oligo(p-phenylenevinylene)s facilitate fast exciton migration and funneling excitation energy to encapsulated molecular wire, thereby resulting in intense red emission (see picture).

Geliert: Selbstorganisierte Nanofasern aus alternierenden Koaggregaten eines nichtkovalenten Donor-Akzeptor(D-A)-Amphiphils bilden Hydrogele in Wasser (siehe Schema). Mikroskopie und Einkristall-Analytik gaben Einblick die hierarchische Selbstorganisation – zunächst zu zylindrischen Micellen und, mit steigender D-A-Konzentration, schließlich einem Gel des Coronen- Viologen-Derivat bestehenden Charge-Transfer(CT)-Amphiphils.

Measuring humidity in dynamic situations calls for highly sensitive fast response sensors. Here we report, a sensor fabricated using solution processed supramolecular nanofibres as active resistive sensing material. The are built via self- assembly of donor and acceptor molecules (coronene tetracarboxylate dodecyl methyl viologen respectively) involved charge transfer interactions. conductivity the nanofibre varied sensitively over wide range relative (RH) with unprecedented recovery times....

Multicomponent supramolecular copolymerization promises to construct complex nanostructures with emergent properties. However, even two monomeric components, various possible outcomes such as self-sorted homopolymers, a random (statistical) copolymer, an alternate or block copolymer can occur, determined by their intermolecular interactions and monomer exchange dynamics hence structural prediction is extremely challenging. Herein, we target this challenge demonstrate unprecedented...

Flexible and dynamic porous coordination polymers (PCPs) with well-defined nanospaces composed of chromophoric organic linkers provide a scaffold for encapsulation versatile guest molecules through noncovalent interactions. PCPs thus potential platform molecular recognition. Herein, we report flexible 3D supramolecular framework {[Zn(ndc)(o-phen)]⋅DMF}n (o-phen = 1,10-phenanthroline, ndc 2,6-napthalenedicarboxylate) confined that can accommodate different electron-donating aromatic amine...

Abstract Solution phase room‐temperature phosphorescence (RTP) from organic phosphors is seldom realized. Herein we report one of the highest quantum yield solution state RTP (ca. 41.8 %) in water, a structurally simple phthalimide phosphor, by employing an organic–inorganic supramolecular scaffolding strategy. We further use these hybrid as light‐harvesting scaffold to achieve delayed fluorescence orthogonally anchored Sulforhodamine acceptor dyes via efficient triplet singlet Förster...

Temporal control of supramolecular assemblies to modulate the structural and transient characteristics synthetic nanostructures is an active field research within chemistry. Molecular designs attain temporal have often taken inspiration from biological assemblies. One such assembly in Nature which has been studied extensively, for its well-defined structure programmable self-assembly, ATP-driven seeded self-assembly actin. Here we show, a manifestation actin ATP-selective ATP-fuelled,...

Abstract Arylene diimide derived ambient organic phosphors are seldom reported despite their potential structural characteristics to facilitate the triplet harvesting. In this context, highly efficient room temperature phosphorescence (RTP) from simple, heavy‐atom substituted pyromellitic derivatives in amorphous matrix and crystalline state is here. Multiple intermolecular halogen bonding interactions among these phosphors, such as halogen‐carbonyl halogen‐π resulted modulation of...

The burgeoning noncovalent interactions between π-acidic aromatic surfaces and anions have been recently shown to unique functional relevance in anion transport, ion sensing, organocatalysis. Despite its potential instigate charge-transfer (CT) states, modulation of the emission features by toggling excited states using anion-π is not yet explored. On other hand, with CT characteristics play an important role ambient triplet harvesting organic chromophores. In this context, herein we propose...

Engineering the electronic excited state manifolds of organic molecules can give rise to various functional outcomes, including ambient triplet harvesting, that has received prodigious attention in recent past. Herein, we introduce a modular, non-covalent approach bias entire landscape an molecule using tunable 'through-space charge-transfer' interactions with appropriate donors. Although charge-transfer (CT) donor-acceptor complexes have been extensively explored as and supramolecular...

Single-layer graphene stabilization: An efficient methodology to make stable aqueous solutions of single-layer has been demonstrated by exploiting charge-transfer interactions with a coronene tetracarboxylate acceptor molecule (see figure). Microscopic studies reveal exfoliation few-layer and selective stabilization in large quantities.

All lined up: Supramolecular assemblies are aligned by a convective flow in clear, nonviscous dilute solutions (see picture). The linear dichroism created the alignment results artifacts circular measurements, origins of which explained.

A rational approach to the design of supramolecular organogels all-trans oligo(p-phenylene vinylene) (OPV) derivatives, a class well-known organic semiconductor precursors, is reported. Self-assembly these molecules induced gelation hydrocarbon solvents at low concentrations (<1 mM), resulting in high aspect ratio nanostructures. Electron microscopy and atomic force (AFM) studies revealed twisted entangled tapes an average 50-200 nm width, 12-20 thickness, several micrometers length. The...

Good cholesterol: Oligo(p-phenylenevinylene)s (OPVs) that are mono- or disubstituted with cholesterol moieties form pseudo-J and pseudo-H aggregates, respectively (see picture), which lead to coiled twisted helical structures distinct optical, chiroptical, morphological properties.

Left-handed-helical nanoropes are formed from higher-order self-assemblies of chiral aggregates during the gelation a rigid π-conjugated oligo(p-phenylenevinylene) with remote handles (see picture; R=C12H25). The concentration- and temperature-dependent CD-signal changes observed for these assemblies indicative helix transition. This process is reminiscent folding unfolding helical biological macromolecules. Supporting information this article available on WWW under...

A three-dimensional luminescent metal–organic framework, {Mg(DHT)(DMF)2}n (1), based on an excited-state intramolecular proton-transfer (ESIPT) responsive linker, 2,5-dihydroxyterephthalic acid (H2DHT), has been synthesized, and its desolvated microporous framework with pendent −OH groups the pore surface was exploited for binding specific sensing of metal ions via Lewis acid–base interactions. The luminescence intensity significantly quenches CuII among various s- d-block ions, highly...

Let's twist again: Transcription of molecular chirality from common stereogenic centers to amplified supramolecular during the coassembly gel-forming π-conjugated molecules by inverted helicity results in formation longitudinally fused M and P helices. This “sergeants soldiers” approach under stereomutation has been confirmed CD AFM techniques (see picture).

A novel molecular design concept to control the emission of a metal–organic framework, {Mg(DHT)(DMF)2}n, (DHT: 2,5-dihydroxyterephthalate), based on excited state proton transfer (ESIPT) organic linker, DHT, is demonstrated. The framework unveils permanent porosity and exhibits ligand-based multicolor that can be tuned well controlled by solvent molecules in solution as solid state.

Natural systems have been an inspiration to synthetic supramolecular chemistry. Synthetic demonstrations of dissipative biological such as actin filaments are a formidable scientific challenge in attaining future life-like materials. Dynamic instability structures beckons control self-organization the temporal regimes. In this study, we present fuel-dependent helical assembly polymer. We further attempt manifestation temporally programmable self-assembly. Additionally, fuel-induced chiral...

The noncovalent self-assembly of chromophores in an organoclay template results the formation fluorescent hybrid hydrogels and films. These clay–dye hybrids act as novel supramolecular scaffolds for light-harvesting aminoclay (AC) templates spatial organization donor acceptor molecules to promote Förster resonant energy transfer (see picture; CS=coronene salt, PS=perylene salt). Detailed facts importance specialist readers are published "Supporting Information". Such documents peer-reviewed,...