Light-emitting materials with tunable properties may offer fascinating applications in optoelectronic devices, fluorescent sensors, and imaging agents. Herein, a new supramolecular approach based on host–guest interactions that greatly decreases the number of required synthetic steps produces system dynamical photophysical was developed. Because novel electronic distributions chromophore guest within rigid hydrophobic cavity cucurbit[8]uril host this system, color tuning emissions such as...

Abstract Interface engineering is a critical method by which to efficiently enhance the photovoltaic performance of nonfullerene solar cells (NFSC). Herein, series metal–nanographene‐containing large transition metal involving d π – p conjugated systems way addition reactions osmapentalynes and ‐diethynyl‐hexabenzocoronenes reported. Conjugated extensions are engineered optimize π‐conjugation these metal–nanographene molecules, serve as alcohol‐soluble cathode interlayer (CIL) materials....

We present the synthesis and characterization of a fused-ring compound, dithieno[2,3-d:2',3'-d']thieno[3,2-b:4,5-b']dithiophene (pentathienoacene, PTA). In contrast to pentacene, PTA has larger band gap than most semiconductors used in organic field-effect transistors (OFETs) therefore is expected be stable air. The large π-conjugated planar molecular structure would also form higher orders that are conductive for carrier transport. X-ray diffraction atomic force microscopy experiments on...

A scalable, low-cost and environmentally benign strategy is developed for the facile construction of a unique kind three-dimensional porous electrode architecture high-performance lithium ion batteries. The methodology based on employment pyrolyzed bacterial cellulose as new scaffold to support various nanostructured active materials, such SnO2 Ge. As service our authors readers, this journal provides supporting information supplied by authors. Such materials are peer reviewed may be...

To restrain the chemical reaction at cathode interface of organic solar cells, two interfacial materials are synthesized by connecting phenanthroline with carbolong unit. Consequently, D18:L8-BO based cell double-phenanthroline-carbolong achieve highest efficiency 18.2%. Double-phenanthroline-carbolong larger steric hindrance and stronger electron-withdrawing property confirms to suppress norfullerene acceptor, resulting most stable device. device can sustain 80% its initial for 2170 h in...

Four donor-acceptor functionalized molecular materials with symmetrical structures have been synthesized and investigated for their use in optoelectronic applications. These pi-conjugated molecules consist of one electron-donating moiety, instance, carbazole, triphenylamine, or phenothiazine at the center, two acceptors each side. Introduction different donor moieties decreases band gaps allowing a fine-tuning optical electrical properties. exhibit multifunctional properties, such as red...

Four X-shaped oligothiophenes with different conjugation length were investigated as novel electron donors in single-layer bulk-heterojunction solar cells. The UV−vis absorption spectra of blends compounds 1−4 1-(3-methoxycarbonyl)propyl-1-phenyl[6,6]C61 show a remarkably red shift and broadening increasing thiophene number at each the four branches. performance photovoltaic cells varied significantly molecular structures oligothiophenes. Conversion efficiencies increased from 0.008% to 0.8%...

Energy transfer and interchange are central for fabricating white light-emitting organic materials. However, increasing the efficiency of light energy remains a considerable challenge because occurrence "cross talk". In this work, by exploiting unique photophysical properties cucurbituril-triggered host–guest interactions, two complementary luminescent colors blue yellow emission were independently obtained from single fluorophore dye rather than transfer. Further study suggested that rigid...

Alkyl organophosphate flame retardants (OPFRs), tri-n-butyl phosphate (TnBP) and tris(2-butoxyethyl) (TBOEP), are ubiquitously detected in indoor outdoor environments their inhalation may result lung damage. This study examined pulmonary toxicity after exposure to TnBP or TBOEP investigated aggravation of inflammation immunoreaction by an ovalbumin (OVA)-induced mice model. Transcriptomics were used further reveal the underlying mechanism. Exposure resulted pathological damage, including...

The novel perylene bisimides functionalized with oligothiophene substituents in the bay position of core N,N'-di(2-ethylhexyl)-1,7-di(thiophen-2-yl)perylene-3,4,9,10-tetracarboxylic acid bisimide (2a), N,N'-di(2-ethylhexyl)-1,7-di[(2,2')bithiophen-5-yl]perylene-3,4,9,10-tetracarboxylic (2b), and N,N'-di(2-ethylhexyl)-1,7-di[(2,2';5',2' ')terthiophen-5-yl]perylene-3,4,9,10-tetracarboxylic (2c) have been synthesized fully characterized. As compared to unsubstituted (3), UV−vis absorptions 2a−c...

1,6,7,12-Tetrabromoperylene-3,4,9,10-tetracarboxylic acid bisanhydride and the corresponding tetrabrominated perylene bisimide were first synthesized with high yields. The Suzuki coupling reaction of novel tetrabromoperylene phenylbonoric was studied. four bromines in bay position core substituted successfully to yield 1,6,7,12-teraphenylperylene bisimide. photochemical properties bisimides studied presented.

Novel butterfly pyrene derivatives functionalized with trifluoromethylphenyl and thienyl aromatic groups in the 1-, 3-, 6- 8-positions of cores have been synthesized by Suzuki coupling reactions, their crystal structures, optical electrochemical properties investigated; additionally, field effect transistor using as active material exhibited a p-type performance.

Abstract Although the formation of metal–carbon σ bonds is a fundamental principle in organometallic chemistry, direct bonding one organic molecule with metal center to generate more than two remains challenge. Herein, we report an aromaticity-driven method whereby multiyne chains are used construct three one-pot reaction under mild conditions. In this method, act as ligand precursors capable chelating osmium yield planar metallapolycycles, which exhibit aromaticity and good stability. The...

Abstract The metal-carbon triple bonds and carbon-carbon are both highly unsaturated bonds. As a result, their reactions tend to afford cycloaddition intermediates or products. Herein, we report reaction of M≡C C≡C that affords acyclic addition These newly discovered efficient, regio- stereospecific, with good functional group tolerance, robust under air at room temperature. isotope labeling NMR experiments theoretical calculations reveal the mechanism. Employing these reactions,...

Abstract Over the last decades, treatment of large quantities hypersaline wastewater generated by conventional industries, inland desalination, and fossil‐fueled power plants has been an important economic issue also inescapable green issue. Here, we developed a versatile interfacial heating membrane with alternating utilization electricity or solar energy for water treatment. This hierarchical functions both as separation interface heater, which can quickly (<0.1 s) convert into heat to...

Abstract Photoactivable chemotherapy (PACT) using metallic complexes provides spatiotemporal selectivity over drug activation for targeted anticancer therapy. However, the poor absorption in near‐infrared (NIR) light region of most renders tissue penetration challenging. Herein, an NIR triggered dinuclear photoactivable Ru(II) complex ( Ru2 ) is presented and antitumor mechanism comprehensively investigated. The introduction a donor–acceptor–donor (D–A–D) linker greatly enhances...

Conjugated molecules play a critical role in the construction of single-molecule devices. However, most conventional conjugated molecules, such as hydrocarbons, involve only pπ-pπ conjugation light elements. While metal d-orbitals can introduce abundant electronic effects to achieve novel properties, it is very scarce for charge transport study dπ-pπ pathways with involved. Here, we employed break junction technique investigate through backbones metal-carbon multiple bonds integrated into...

Three ladder linear 5,7,12,14-tetraazapentacenes (1–3) have been synthesized by an improved condensation reaction with high yields. These tetraazapentacenes show higher thermal and optical stability in solution solid films compared to pentacene. Organic thin film transistors (OTFTs) based on amorphous of 5,7,12,14-tetraazapentacene are investigated this contribution. A field-effect mobility a stable OTFT air up 2 × 10−2 cm2 V−1 s−1 has achieved. The the state compounds 1–3 combined easy...

Novel zirconia nanofibrous (ZNF) membranes with robust flexibility were prepared for the first time by a facile combination of electrospinning and sol–gel methods. By employing yttrium oxide incorporation, as-prepared ZNF can be dramatically changed from extreme fragility to flexibility. Meanwhile, mechanical properties finely controlled regulating crystallite phase size in fibers. Additionally, porous analysis using synchrotron radiation small-angle X-ray scattering measurements have...

Person re-identification (re-ID) has drawn attention significantly in the computer vision society due to its application and research significance. It aims retrieve a person of interest across different camera views. However, there are still several factors that hinder applications re-ID. In fact, most common data sets either assume pedestrians do not change their clothing views or taken under constrained environments. Those constraints simplify re-ID task contribute early development re-ID,...

Conjugated polymers usually require strategies to expand the range of wavelengths absorbed and increase solubility. Developing effective enhance both properties remains challenging. Herein, we report syntheses conjugated based on a family metalla-aromatic building blocks via polymerization method involving consecutive carbyne shuttling processes. The involvement metal