Using a Ni(dppf) catalyst generated in situ, Heck cross-coupling of aryl pivalates with variety olefin partners has been accomplished. This method represents one the first examples C–C via activation strong C–O bond nonorganometallic coupling partner. It enables transformation phenol-based substrates into styrenyl products without generation halogenated byproduct or use expensive triflate groups.

In this work, we reported a multi-responsive luminescent hydrogel with properties of encryption, naked eye sensing glucose, shape memory, self-healing, and antibacterial activity. The (GA/CCS/DNSA/Eu3+) was obtained by mixing phenylboronic acid-modified gelatin (GA-DBA), catechol-modified carboxymethyl chitosan (CCS-PCA), 3,5-dinitrosalicylic acid (DNSA), Eu3+ ions through facile heating–cooling process. resultant exhibits reversible luminescence color phase changes in response to...

We have developed a lanthanide/B(C6F5)3-promoted hydroboration reduction of indoles and quinolines with pinacolborane (HBpin). This reaction provides streamlined access to range nitrogen-containing compounds in moderate excellent yields. Large-scale synthesis further transformations bioactive indicate that the method has potential practical applications. Preliminary mechanistic studies suggest amine additives promote formation indole-borane intermediates, proceeds via intermediates HBpin...

The aggregation-induced emission (AIE) mechanism of restriction double-bond rotation (RDBR) was utilized to design an excellent solid emitter and sensor for the first time. Thus, cis-tetraphenylethylene (TPE) macrocycle diammoniums were synthesized bound a DNA chain by its two ammonium arms. formed TPE dicycle at cis position restricted double bond in both ground excited states, resulting AIE enhancement, chiroptical performance sensing enhancement.

Supramolecular gelator <bold>WJ</bold> could form a stable supramolecular organogel (<bold>WJG</bold>) with strong aggregation-induced emission (AIE). Utilizing the AIE gel, we successfully developed multi-analyte sensor array which accurately identify CN⁻, Al³⁺, and Fe³⁺ <sc>l</sc>-Cys.

Supramolecular xerogel films as multicolor photoluminescent materials are ideal for applications in optical devices, such photochromic smart windows and LEDs. Therefore, a blue-fluorescence supramolecular hydrogel has been successfully constructed from α-CD benzimidazole derivatives (WCB) through host–guest interactions with assembly-induced emission (SAIE) properties. The WCB-α-CD enables the coordination different lanthanide metal ions (Ms) to form nanoparticles spherical-like morphology,...

Abstract Development of pure organic molecular materials with room temperature phosphorescence (RTP) and their applications for white emitters have received significant attentions recently. Herein, a D– π –A molecule (DMACPPY) which can realize emitting under ambient conditions both in the crystal state doped‐film by combining RTP two fluorescent emissions is reported. The emission from crystalline sample DMACPPY consists fluorescence S 2 (the second excited singlet state) 1 first along T...

A novel, easy to fabricate AIE-based supramolecular polymer gel material enables the ultrasensitive detection and efficient separation of multiple heavy metal ions.

Summary Genes for biosynthesis of a Streptomyces sp. FR‐008 heptaene macrolide antibiotic with antifungal and mosquito larvicidal activity were cloned in Escherichia coli using heterologous DNA probes. The genes implicated biosynthiesis by gene replacement. contains 38‐membered, poiyketide‐derived ring. Southern hybridization probes encoding domains the type i modular erythromycin polyketide synthase (PKS) showed that PKS cluster repeated sequences spanning c. 105 kb contiguous DNA; assuming...

Chromium(iii) is a kind of microelement and can be converted to the more toxic chromium(vi), which carcinogen, by redox cycling. Thus, development novel materials for detection removal Cr3+ very important issue. A metallogel chemosensor (BMG-Fe) based on functionalized benzimidazole (BM) Fe3+ was constructed, could fluorescently detect separate Cr3+. The limit BMG-Fe 2.62 × 10-8 M, it exhibited high sensitivity selectivity Meanwhile, absorbing percentage 96.36%, indicating separation rate....

A novel bis-component AIE-gel TG was facilely constructed from two "easy-to-synthesize" tripodal gelators by a simple host-guest self-assembly process. Interestingly, the shows strong aggregation-induced emission (AIE) and could be used for highly efficient sensitive detection separation of ions (CN-, Fe3+ H2PO4-). The LODs (limits lowest detection) CN-, H2PO4- are in range 4.93 × 10-9-7.80 10-8 M. Meanwhile, xerogel adsorb separate aqueous solutions, adsorption rate is 96%. In addition,...

The development of reversible redox supramolecular gels capable concurrent luminescence switch and visible color change with the facile process has always been an intriguing challenge. A redox-responsive lanthanide metallogel strong yellow is obtained via coordination interaction between 3,5-dinitrosalicylic acid (DNSA) europium (Eu3+). Upon addition TiO2 to prepared gel (DNSA/Eu3+ gel), oxidation (DNSA/Eu3+/TiO2 gel) can be easily achieved by UV irradiation. DNSA/Eu3+/TiO2 exhibits a...

Preparing luminescence-stable lanthanide materials in a facile manner has always been an intriguing challenge. Herein we report easy approach to the preparation of heat-set lanthanide-based metallogel (H6L/Tb gel) with stable luminescence from 5,5',5''-(1,3,5-triazine-2,4,6-triyl)tris(azanediyl) triisophthalate (H6L) as Tb3+ coordinating ligand. The H6L/Tb gel exhibits that mostly retains its intensity 0-90 °C temperature range and under mechanical stimulus. In addition, xerogel is also...

Aim Baseline cognitive functions of patients predicted the efficacy remediation therapy (CRT), but results are mixed. Eye movement is a more objective and advanced assessment than neuropsychological testing. We aimed to investigate applicability eye movements in predicting improvement after with schizophrenia were treated CRT. Methods recruited 79 complete 8 weeks CRT assessed their outcomes. by prosaccades, antisaccades, free-viewing tasks at baseline, tests four domains before treatment...

Highly oriented beam steering will enhance power density and field of view (FOV) in terahertz wireless links. Metasurface can be constructed by deliberate arrangement subwavelength meta-cells to manipulate the wavefront. This paper explores a dispersive metasurface with specific phase gradient patterned 2-inch aperture, allowing for collimated beamforming two-dimensional (2D) combination frequency tuning rotation. The is directly fed horn antenna, ensuring compact integration. Simulation...

Abstract Photo‐patterning of polymer semiconductors using photo‐crosslinkers has shown potential for organic circuit fabrication via solution processing techniques. However, the performance patterning, including resolution ( R ), UV light exposure dose, sensitivity S and contrast γ remains unsatisfactory. In this study, a novel conjugated based photo‐crosslinker PN3 , Figure 1a) is reported first time, which entails phenyl‐substituted azide groups in its side chains. Due to π – interactions...