Here we report the design and synthesis of a new conjugated microporous polymer based on BODIPY dye (CMPBDP) which has shown excellent luminescence properties an efficient heterogeneous photocatalytic activity. CMPBDP shows high thermal stability surface area with size efficiently catalyzes selective oxidation thioanisole into corresponding sulfoxide via singlet oxygen under visible light (up to 500 nm). The rate materials is 4-fold faster that soluble (used as reference) same reaction...

Abstract Redox‐active conjugated microporous polymers (RCMPs) polymerized by conventional methods are commonly obtained as irregular insoluble solid particles making the electrode processing difficult. In this work, synthesis of RCMP based on anthraquinone moieties (IEP‐11) is developed via a two‐step pathway combining miniemulsion and solvothermal techniques that results in polymer nanostructures much easier to disperse solvents facilitating fabrication electrodes. Interestingly, synthetic...

Redox-active organic compounds have become promising electrode materials for the development of more sustainable, economical, and safer batteries. However, their high electrochemical performance is inherently associated with use low mass-loading electrodes carbon content, which collectively hinders applicability in real This work presents an innovative approach developing high-performance practical through synthesis anthraquinone-based conjugated microporous polymers presence nanostructures...

Abstract Solar energy conversion plays a very important role in the transition to more sustainable system. In this sense, so many systems have been proposed drive artificial photosynthesis, most of them based on inorganic semiconductors, and achievements performed continue every day. However, these present well‐known shortcomings as low light absorption, fast charge recombination, lack tunability, thus limiting their efficiency. The use organic polymers general conjugated porous (CPPs)...

Solar fuels production is a cornerstone in the development of emerging sustainable energy conversion and storage technologies. Light-induced H2 from water represents one most crucial challenges to produce renewable fuel. Metal-organic frameworks (MOFs) are being investigated this process, due ability assemble new structures with use suitable photoactive building blocks. However, identification reaction intermediates remains elusive, having negative impacts design more efficient materials....

Abstract Developing highly efficient photocatalysts for artificial photosynthesis is one of the grand challenges in solar energy conversion. Among advanced photoactive materials, conjugated porous polymers (CPPs) possess a powerful combination high surface areas, intrinsic porosity, cross‐linked nature, and fully π‐conjugated electronic systems. Here, based on these fascinating properties, organic–inorganic hybrid heterostructures composed CPPs TiO 2 photocatalytic CO reduction H evolution...

Herein, we report the use of isonitriles as alkyl radical precursors in light-mediated hydro- and deuterodeamination reactions. The reaction is scalable, shows broad functional group compatibility potential to be used late-stage functionalization. Importantly, method general for C

This work examines the role of polymer nanostructuration phenylene vinylene (PV) conjugated porous polymers (PV‐CPPs) as highly active photocatalysts for both hydrogen production and CO 2 photoreduction reactions. It is found that nanostructured PV‐CPP hybrids with TiO show a high increase in H being most example, n‐IEP‐20@T‐10 sample an evolution rate 3.24 mmol g −1 h ( ξ = 1.20%), is, 8 times higher than its non‐nanostructured 65‐fold . In contrast, shows significant improvement CH 4...

Abstract Here, the use of high‐performance microfluidic techniques (HPMT) is reportedto afford conjugated porous polymer (CPPs) with smaller particle size and narrower dispersion than obtained by miniemulsion methodology. Specifically, polymers based on BODIPY or BOPHY dyes are synthesized HPMT conditions conventional conditions. The textural properties from notably improved, giving rise to high‐quality thin films that photoelectrochemically characterized. Furthermore, hybrid materials CPPs...

We report on the photophysical properties and laser action of five newly synthesized dipyrromethene·BF2 complexes that are analogues dye PM567 dissolved in apolar, polar nonprotic, protic solvents, paying attention to effect concentration. All these dyes have a common chromophore core differ length 8-(ω-acetoxy)polymethylene substituent. When pumped transversely at 534 nm, efficiencies up 59% were obtained, which found be nearly independent nature solvent polymethylene chain. Good...

The intense blue fluorescence of the infusion Lignum nephriticum (Eysenhardtia polystachya), first observed in sixteenth century, is due to a novel four-ring tetrahydromethanobenzofuro[2,3-d]oxacine which not present plant but end product an unusual, very efficient iterative spontaneous oxidation at least one tree's flavonoids.

Stepwise and coupled photoinduced ICT ESIPT reactions in a simple derivative of HBO solution.

A deprotection strategy of BODIPY conjugated porous polymers (CMPBDP) has been applied to synthesize a new (dipyrrin)(bipyridine)Ru(<sc>ii</sc>) (<bold>CMPBDP-Ru</bold>) efficient heterogeneous photocatalyst for iminium ion generation under visible light.

Abstract Described herein is a new visible‐light photocatalytic strategy for the synthesis of enantioenriched dihydrofurans and cyclopentenes by an intramolecular nitro cyclopropane ring expansion reaction. Mechanistic studies DFT calculations are used to elucidate key factors in this reaction, need group on cyclopropane.

A bifunctional photoaminocatalyst based on imidazolidinone and thioxanthone is presented. The preparation of these catalysts proceeds in a two-step synthesis that allows an easy tuning the steric properties. photophysical electrochemical data photocatalysts have been determined, indicating can work under visible light conditions. To corroborate experimental observations, ground state geometry optimization energy transition studies catalyst 4c were optimized by time-dependent density...

Herein, the photocatalytic activity of four conjugated porous polymers (CPPs) based on BOPHY moiety (named IEP-x, x = 7, 8, 9, and 10) TiO2 hybrids thereof to produce hydrogen from water under UV–vis irradiation is described. All show better performance than TiO2, hybrid materials (only 10 wt % polymer loading) a higher evolution rate sum their components. The best value recorded for IEP-7@T-10 sample which shows 12-fold HER its individual bare materials. Also, this with 1 photodeposited...

We report on the synthesis and photophysical lasing properties of two new dipyrromethene·BF2 dyes, analogues commercial dye PM567, dissolved in liquid solutions or polymeric matrices poly(methyl methacrylate) as solid copolymers with methyl methacrylate, where chromophore is covalently bound to chains. The dyes have 8 position substituted by group p-(acetoxypolymethylene)phenyl p-(methacryloyloxypolymethylene)phenyl (number methylenes = 1 3). Good correlations between dilute characteristics...

New tailormade BODIPY dyes have been synthesized by a simple protocol to reach wavelength finely tunable laser action from 540 625 nm while maintaining highly efficient and photostable emission. The new are analogues of the commercial dye PM597 with eight position free (PTH8) or substituted groups acetoxymethyl (PTAlk) p-acetoxymethylphenyl (PTAr). photophysical properties strongly depend on geometrical distortion planarity indacene core generated presence bulky 2,6-di-tert-butyl...

A methacrylic monomer containing the dye 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene (BODIPYMA) was synthesized to provide fluorescence properties three different thermo-sensitive families of polymers based on 2-(2-methoxyethoxy)ethyl methacrylate (MEO2MA). Initially, linear random terpolymers MEO2MA, oligo(ethylene glycol) methyl ether (OEG8−9MA) with Mn = 475 g mol−1, and a very low proportion BODIPYMA were by atom transfer radical polymerization (ATRP). These showed lower critical solution...

Upconversion nanoparticles (β-NaYF4:Er3+, Yb3+, UCNPs) were capped with a thin polymer shell by replacing the oleate ligand of hydrophobic UCNPs multidentate thiolate-grafting P(MEO2MA-co-SEMA) copolymers. The presence 2-(2-methoxyethoxy)ethyl side chains MEO2MA extending out nanohybrid made them water-dispersible. UCNP@P(MEO2MA-co-SEMA) nanohybrids exhibited an enhanced emission up to factor 10, as compared that their precursor in dichloromethane and even water (a 2). Moreover,...