Feeling blue: the luminescence of a triarylboron compound has high quantum yield (at least 0.64) over wide temperature range (-50 to +100 °C) and changes from green blue as is increased. The color was determined by population two distinct excited-state conformations-a local excited state (high temperature) twisted intramolecular charge-transfer (low temperature).

The coupling of H2O and O2 by solar energy is regarded as the Holy Grail reaction for a manufacturing route H2O2; however, its efficiency has suffered from low solubility in aqueous solution difficult-to-inhibit side reactions. Herein, liquid–solid–gas triphase system been designed to directly utilize abundant atmospheric H2O2 photosynthesis, most important which superhydrophobic photocatalyst amino-containing ligands combined with Pd, loaded on BiVO4 (Pd/A/BiVO4). This relatively separated...

Photocatalytic hydrogen evolution (PHE) has gained massive attention for the development of renewable resources. Currently, prominent and stable PHE is still restricted by limited utilization photocatalytic charge carriers, especially holes, which transfer rate approximately two to three orders magnitude slower than that electrons. Although it widely accepted surface holes can be consumed electron donors, rational design photocatalysts speed up hole understand ultrafast photodynamics as well...

Theoretical investigations of the transition structures additions and cycloadditions reveal details about geometries bond-forming processes that are not directly accessible by experiment. The conformational analysis states has been developed from theoretical generalizations preferred angle attack reagents on multiple bonds predictions conformations with respect to partially formed bonds. Qualitative rules for prediction stereochemistries organic reactions have devised, semi-empirical...

Abstract Fluorescent temperature sensing has received increasing interest in a wide range of fields, including fluid dynamics, micromechanics, and molecular cell biology. Here, novel series triarylboron compounds with significant thermosensitive hue transformation high fluorescent quantum efficiency is described. It then demonstrated that core/shell microcapsules based on one the exhibit outstanding response. The microcapsules, dispersed different liquid or solid media, can serve as highly...

Hydrogen sulfide (H2S) is a multifunctional signaling molecule that participates in many important biological processes. Herein, by functionalizing triarylboron with cyclen and diphenylamine, we synthesized TAB-1, TAB-2, TAB-3 for H2S recongnization rational design of molecular structures. Among them, aqueous soluble TAB-2 possesses excellent properties, including large two-photon action cross section, membrane permeability can effectively complex Cu(2+). The TAB-2-Cu(2+) selectively detect...

A series of water-soluble naphthyl terminal-decorated dendrimers G0-3NapH were synthesized. Fluorescence studies reveal that strong interactions among peripheral chromophores occur in these according to the intensive excimer emission and low fluorescence quantum yields (Phi(f) = 0.12, 0.097, 0.065, 0.062 for G0-3NapH). Through assembly dendrimer with cucurbit[7]uril (CB[7]), well-defined pseudorotaxane assemblies GnNapH x xCB[7] (x 4, 8, 16, 32 n 0-3, respectively) form energy dissipation is...

A new nanogel indicator (NGI) for ratiometric fluorescent detection of intracellular pH values has been reported. In aqueous solution, the NGI can be used sensing changes with a large hypsochromic shift 100 nm in green–red region and reversible. Furthermore, to calibrate cytosol living cells.

In this study, a series of molecular resists based on bis(4-butoxyphenyl) sulfone core attached to varying number radiation-sensitive triphenylsulfonium units (BPSSn, where n = 2, 3, and 4) were designed synthesized. We evaluated the physical properties these resists, including solubility, film-forming ability, thermal stability, assess their viability as photoresist materials. The materials allowed for negative patterning through organic development in both e-beam extreme ultraviolet (EUV)...

Abstract Acute lung injury (ALI) poses a significant and escalating medical challenge, where precise diagnosis timely intervention hold utmost importance in halting its deterioration. Nevertheless, persistent obstacles arise from the lack of agents proficient both real‐time efficient mitigation ALI. Here, biocatalytic second near‐infrared (NIR‐II) fluorescence‐illuminating nanoplatform is designed to simultaneously facilitate monitoring robust inflammation alleviation The study first...

A few of excited state intramolecular proton transfer (ESIPT) compounds have been discovered for their aggregation induced emission enhancement (AIEE). To understand the AIEE mechanism, an ESIPT compound BTHPB (N-(4-(benzo[d]thiazol-2-yl)-3-hydroxyphenyl)benzamide) with simple structure was designed and synthesized. showed apparent property efficiency observed as high 0.27 in aggregates. On basis viscochromism experiments calculations employing linear coupling model, restriction rotation...

Kühles Grün, heißes Blau: Ein Triarylboran luminesziert über einen weiten Temperaturbereich (−50 bis +100 °C) mit hoher Quantenausbeute (≥0.64), wobei die Farbe steigender Temperatur von Grün nach Blau wechselt (siehe Bild). Die Lumineszenzfarbe wird durch Besetzung zweier angeregter Zustände verschiedenen Konformationen bestimmt – ein lokal Zustand bei und verdrillter intramolekularem Ladungstransfer tiefer Temperatur. Detailed facts of importance to specialist readers are published as...

Dendrimers are regularly and hierarchically branched synthetic macromolecules with numerous chain ends all emanating from a single core, which makes them attractive candidates for energy conversion applications. During photosynthesis photocatalysis, photoinduced electron transfer the main processes involved. Studies on these in dendritic systems critical future applications of dendrimers photochemical other optoelectronic devices. In this Perspective, recent advances photofunctional based...

Chromophore reactions with changes to conjugation degree, especially those between the conjugated and unconjugated state, will bring a large spectral variation. To realize such process, meso-naked BODIPY (MNBOD) two electron-withdrawing groups around core is designed synthesized. The resulting system extremely sensitive bases. red, highly fluorescent solution readily becomes colorless non-fluorescent after base addition; however, color fluorescence can be totally instantly restored by...

We developed a new indicator Mito-pH-1 for the ratiometric fluorescence detection of mitochondria pH value (pH_m) which has excellent tolerance to environment change. been firstly used monitor change pH_munder temperature and H₂O₂stimuli in living cells.

Photochemical conversion and storage of solar energy, in which the energy process is initiated by capture photons subsequent delivery, a sustainable way to partially cover future human needs. Diverse artificial light-harvesting techniques have been realized applied as result decades effort. In this Perspective, challenges developing trends molecular–supramolecular systems for photochemical are discussed. Advances potential strategies construction exceptional merging molecular supramolecular...

The solar generation of hydrogen by water splitting provides a promising path for renewable production and energy storage. Upconversion low-energy photons into high-energy constitutes strategy to enhance the light harvesting efficiency artificial systems. In present study, upconversion micelles are integrated with Cd0.5 Zn0.5 S construct conversion micelle is employed upconvert red cyan photons. sensitized upconverted produce hydrogen, but not incident without triplet-triplet annihilation...

A novel dual-tone molecular glass (AD-10Boc) resist was developed for electron beam lithography. The AD-10Boc can resolve dense line patterns of 21 nm and 30 L/S negative-tone positive-tone development, respectively.

A novel molecular glass (TPSiS) with photoacid generator (sulfonium salt group) binding to tetraphenylsilane derivatives was synthesized and characterized. The physical properties such as solubility, film-forming ability, thermal stability of TPSiS were examined assess the suitability for application a candidate photoresist materials. sulfonium unit underwent photolysis effectively generate on UV irradiation, which catalyzed deprotection t-butyloxycarbonyl groups. It demonstrates that can be...

Developing fluorescent motifs capable of displaying mechano- and thermo-stimuli reversibly ratiometrically is appealing for monitoring the deformation or temperature to which polymers are subjected. Here, a series excimer-type chromophores Sin-Py (n = 1-3) consisting two pyrenes linked with oligosilanes one three silicon atoms developed as motif incorporated in polymer. The fluorescence steered linker length where Si2-Py Si3-Py disilane trisilane linkers display prominent excimer emission...

Poly(ethylene terephthalate) (PET) is well known as a needful part of comfortable and convenient life. However, the massive use PET key issue in contemporary environmental system. Glycolysis transesterification reaction that employs catalyst ethylene glycol (EG) to disintegrate into bis(hydroxyethyl) terephthalate (BHET). impurities are easily generated during glycolysis process, purification product BHET complicated, resulting yellowing recycled (rPET) obtained by repolymerization. In this...

Abstract As the crucial dimension (CD) of logic circuits continues to shrink, photoresist metrics, including resolution, line edge roughness, and sensitivity, are faced with significant challenges. Photoresists indispensable in integrated circuit manufacturing industry, specifically achieving smaller critical dimensions. In this study, effects two categories photosensitive compounds on lithography performance explored, through a series sulfonium salt‐based photoacid generators (PAGs) diverse...