ArtikelCrystal Structure and Photocatalytic Properties of the CsV0.625Te1.375O6 Mixed‐Valence β‐Pyrochlore Compoundvon Diana G. et al. · 23.09.2023 The complex mixed-valence tellurium and vanadium compound Cs(V3+ 0.0625V5+ 0.5625Te4+ 0.34375Te6+ 1.03125)O6 with a classical cubic β-pyrochlore structure has been prepared. As a result of features of its electron structure, the compound possesses p...
ArtikelReversible Photobleaching of Silver Clusters in Silica‐Based Glass under Ultraviolet Irradiationvon Leonid Yu. et al. · 23.09.2023 Luminescent silver clusters in silica-based glass show photobleaching under CW UV irradiation. Degradation of cluster luminescence is reversible and restores after the heat treatment below glass transition temperature. The proposed mechanism of phot...
ArtikelConstruction of a Ce‐UiO‐66/MCo2O4 Heterojunction for Photocatalytic Cr(VI) Detoxification Through a p‐n Junction Formation Mechanismvon Mahdi Hosseinpour et al. · 23.09.2023 Let's collaborate! MCo2O4 (M=Mn, Zn, Fe) was synthesized and combined with Ce-UiO-66 to create a heterojunction structure for use as a photocatalyst for chromium(VI) reduction. The resulting Ce-UiO-66/MCo2O4 heterojunctions exhibited high Cr(VI) red...
ArtikelPhotoswitchable Rhodamine‐Based Multianalyte Sensors for Metal Ion Detectionvon Anjali Srivastava et al. · 23.09.2023 Three azobenzene-core-based molecular systems decorated with rhodamine units were designed and developed as photoswitchable multianalyte sensors. The systems were employed in the detection of multiple metal ions (Fe(III), Fe(II), Sn(II) and Al(III))...
ArtikelNon‐approximative Kinetics of Triplet‐Triplet Annihilation at Room Temperature: Solvent Effects on Delayed Fluorescencevon Victoria M. et al. · 23.09.2023 Herein we report on a non-approximative analysis of delayed fluorescence and study the triplet-triplet annihilation process of the PtOEP/9,10-DPA and PdOEP/9,10-DPA sensitizer/acceptor pairs in different solvents (THF, DMSO and toluene). Abstract ...
ArtikelWater‐Soluble Cationic Perylene Diimide Dyes as Stable Photocatalysts for H2O2 Evolutionvon Maciej Gryszel et al. · 23.09.2023 Water-soluble dyes based on perylene diimide molecules were employed as molecular catalysts for the light-induced conversion of dissolved oxygen to hydrogen peroxide. Improved photocatalytic efficiency was achieved by using quaternary ammonium solub...
ArtikelAggregation‐Induced Enhanced Emission of a Dimethylacridan Substituted Pyrimidine Derivativevon Julien Massue et al. · 23.09.2023 Steady state and time-resolved spectroscopy reveal the enhanced solvatochromism, aggregation induced enhanced emission and protonation controlled dual emission of a dimethyladrydan pyrimidine chromophore. Abstract A pyrimidine chromophore bearing ...
ArtikelCyclic Voltammetry as an Activation Method of TiO2 Nanotube Arrays for Improvement of Photoelectrochemical Water Splitting Performancevon Nikolay A. et al. · 23.09.2023 Photocatalysis: Cyclic voltammetry of TiO2 nanotube (TNT) arrays was used for activating photoelectrochemical water splitting performance. The highest photocurrent was obtained for Na2SO4-activated TNTs. EPR and luminescent analysis of defects shows...
ArtikelA Peculiar Photo‐Induced Transformation Exalted in Nanometric Size CoFe Prussian Blue Analogsvon Grégory Balthazar et al. · 23.09.2023 A photo-induced transformation, specific to the nanometric size and different from the well-documented photo-induced electron transfer in molecules and large size coordination polymers, is evidenced in 5 nm nanocrystals of an alkali cation free CoFe...
ArtikelFront Cover: Supramolecular Luminescent Nano‐assemblies Based on Macrocycles and Amphiphiles for Cell Imaging (ChemPhotoChem 9/2023)von Nina Qian et al. · 23.09.2023 The Front Cover shows various luminescent nano-assemblies flying into cells and lighting them for cell imaging. Non-covalent interaction and binding enable the formation of dynamic supramolecular self-assemblies, realizing in situ control of lumines...
ArtikelSupramolecular Luminescent Nano‐assemblies Based on Macrocycles and Amphiphiles for Cell Imagingvon Nina Qian et al. · 23.09.2023 Let's see… Recent advances in the development and application of supramolecular luminescent nano-assemblies based on different functional building blocks in cell imaging are reviewed. These supramolecular luminescent nano-assemblies have wide applic...
ArtikelLight‐Switchable Metal Complexes: Introducing Photoresponsive Behaviour Through Azoheteroarenesvon Debapriya Gupta et al. · 23.09.2023 Azoheteroarenes are an emerging class of photoswitch that offer distinct features such as efficient photoisomerization, variable stability of the photoswitched states, and bidirectional photoswitching. This Review overviews different classes of azoh...
ArtikelOne‐Photon and Two‐Photon Absorption Properties of Multi‐Branched Squaraine Dyes Comprised of Triphenylamine Cores and Ethynylene Linkersvon Tay V. et al. · 22.09.2023 The squaraine chromophores, which have single, two-branched, and three-branched structures with ethynyl-triphenylamine central units, exhibit efficient two-photon absorption (TPA) with a cross section that corresponds to the number of branches prese...
ArtikelInclusion Complexes of a Metastable‐State Photoacid with High Acidity and Chemical Stabilityvon Ya‐Nan Yuan et al. · 22.09.2023 Metastable-state photoacid MCH1 (see image) and cyclodextrins (CDs) can form inclusion complexes [MCH1 ⋅ (CD)2] [CD=2-hydroxypropyl-β-CD (HP-β-CD), γ-CD,β-CD and HP-γ-CD] with stronger ground and metastable-state acidity and slower thermal relaxatio...
ArtikelElectrochemical Properties of BaTaO2N Photocatalyst with Visible‐Light‐Driven Water Splitting Capabilityvon Tomohiro Higashi et al. · 21.09.2023 Specific nitridation conditions produced distinct types of BaTaO2N (BTON) particles, one type with overall water splitting activity (Active-BTON) and the other without this activity (Inactive-BTON). Electrochemical and photoelectrochemical propertie...
ArtikelZnGa2O4 : Cr3+@Calcium Phosphate Nanocomposite with Near‐Infrared Persistent Luminescence and High Stabilityvon Clement Lee et al. · 21.09.2023 Shine bright: Persistent luminescent Cr-doped ZnGa2O4 (CZGO) is incorporated into an amorphous calcium phosphate (ACP) matrix. Annealing CZGO prior to ACP integration greatly improves its luminescence intensity and duration. Zn2+ redistribution from...
ArtikelPhotoinduced reactions of styrylpyridine derivatives for the in situ formation of selective ligands for apyrimidinic DNA
ArtikelEnhancement of zinc (II) phthalocyanine photophysical properties in water by sulfonatocalix[4]arene‐based micelles
ArtikelSolid‐state Absorption, Luminescence, and Singlet Fission of Furanyl‐substituted Diketopyrrolopyrroles with Different π‐stacking Arrangements
ArtikelVinyl Phosphonates as Photopharmacological Agents: Laser‐Induced Cis‐Trans Isomerization and Butyrylcholinesterase Activityvon Gulia Bikbaeva et al. · 15.09.2023 Photoswitchable and bioactive: We report vinyl phosphonates with laser-induced cis to trans isomerization via a C=C bond. Cis isomers of the compounds possess some butyrylcholinesterase inhibition, while laser-induced trans isomers demonstrate steep...
ArtikelReversible Acid‐Base Responsive Fluorescence Changes of Solutions and Crystals Based on Anthracenyl Pyridyl Derivatives
ArtikelAggregation‐Induced Emission‐Active Donor‐Substituted Aroyl‐S,N‐Ketene Acetals via Nucleophilic Amine Base Attackvon Lukas Biesen et al. · 14.09.2023 It is all About That Base: Simply by switching the base it is possible to access both bis(aroyl-S,N-ketene acetals) as well as diethylamino-aroyl-S,N-ketene acetals. The latter show strong solid-state emission as well as outstanding aggregation-indu...
ArtikelThe Growing Field of Photoswitchable Macrocycles: A Promising Way to Tune Various Properties with Lightvon Corentin Ludwig et al. · 13.09.2023 Photoswitchable macrocycles: Recent development of azobenzene, diarylethene, (Stiff-)stilbene or dihydroazulene-based photoswitchable macrocycles, for which conformation, dynamic, photo or thermal isomerization can be controlled by multiple photoswi...
ArtikelChiral and Luminescent Organic Radicalsvon Mengqi Wang et al. · 13.09.2023 Chiral luminescent radicals: Based on the origin of chirality, we classified the currently reported chiral luminescence radicals into three categories, intrinsic chiral luminescent radicals, luminescent radicals with chiral substitutions, and field-...
ArtikelRecent Advances in Borylation via Electron Donor–Acceptor Complex Photoactivationvon Guanwen Hu et al. · 11.09.2023 Recent advances in photoinduced borylation reactions employing an electron donor–acceptor complex photoactivation strategy are reviewed. The milestones achieved in the area as well as the existing limitations are highlighted. Additionally, possible ...
ArtikelA BODIPY‐Molecular Rotor in Giant Unilamellar Vesicles: A Case Study by Polarization‐Resolved Time‐resolved Emission and Transient Absorption Spectroscopy
ArtikelCooperative Sensitization Upconversion in Ytterbium(III)‐Based Eosin Lake Pigmentsvon Rita B. et al. · 08.09.2023 Reacting the eosin Y (EOS) dianion and ytterbium(III) in ethanol and under basic conditions afforded an EOS-Yb lake pigment able to transform low-energy photons, specifically near-infrared (NIR) photons, into higher energy photons. The process event...
ArtikelLaser Interfaced Mass Spectrometry of the Sunscreen Molecule Octocrylene Demonstrates that Protonation Does Not Impact Photostabilityvon Cate S. et al. · 08.09.2023 Laser photodissociation spectroscopy has been used to characterize the extent to which protonation affects the ability of octocrylene to act as an effective UV sunscreen molecule. We find that protonation results in a significant red shift of the ab...
ArtikelTightly Connected Poly(3‐Thiophene Boronic Acid)/g‐C3N4 Heterojunctions for Enhanced Visible‐Light Photocatalytic Hydrogen Productionvon Bing‐Miao Zhang et al. · 08.09.2023 Tightly connected poly(3-thiophene boronic acid)/g-C3N4 (PBTA/CN) heterojunctions were fabricated, dependent on hydrogen-bonding interactions for enhanced visible-light photocatalytic hydrogen production. The enhanced photoactivities are attributed ...
ArtikelPhysicochemical and Nonlinear Optical Properties of a Stilbazolium Family Single Crystal with Third Order Nonlinear Optical Activityvon Sekar Anand et al. · 07.09.2023 A third-order nonlinear optical 4-[2-(4-dimethylamino-phenyl)-vinyl]-1-methyl-pyridinium 2-nitroaniline-4-sulfonate (DSNA) single crystal was successfully grown for the first time by incorporating a novel counter anion in the stilbazolium cation. Ch...
ArtikelThe Importance of Precise Reaction Condition Control for the Comparison of Photocatalyst Materials on the Example of Hydrogen Peroxide Formation over Polymeric Carbon Nitridesvon Deborah Wegstein et al. · 07.09.2023 Our study uses the photocatalytic production of hydrogen peroxide by various polymeric carbon nitride materials to demonstrate the importance of precisely adjusting various reaction conditions in the reactor, such as light intensity, oxygen flow, an...
ArtikelMerging Organocatalysis and Photocatalysis: A New Momentum in Covalent Radical Catalysisvon Gaétan Archer et al. · 06.09.2023 This Concept article describes the contribution of photocatalysis in the field of covalent radical catalysis to control the generation and reactivity of radical catalysts. The synthetic perspectives offered by such catalytic combinations are discuss...
ArtikelSynthesis of Chrysanthemum‐like BiOBr Microsphere by Structural Induction of Chitosan for Enhancing Photocatalytic Activity
ArtikelPhotoinduced One‐Electron Oxidation of Estrone Derivatives: A Combined Steady‐State and Time‐Resolved Spectroscopy Investigationvon Matías I. et al. · 04.09.2023 Photoinduced one-electron oxidation of a set of estrone derivatives (R-OX) with ammonium persulphate was carried out by means of steady-state and time-resolved spectroscopies. The photogenerated SO4⋅− oxidizes efficiently the estrones to the radical...
ArtikelPhotophysical Properties of Boron‐Based Chromophores As Effective Moieties In TADF Devices: A Computational Study
ArtikelAccessing a Long‐Fluorescence‐Lifetime BODIPY Dye via Efficient Förster Resonance Energy Transfer Induced by Host‐Guest Dopingvon Lian‐Jun Cai et al. · 08.08.2023 Long-fluorescence lifetime: A novel pure organic RTP system with a long fluorescence lifetime has been achieved through an efficient FRET process via host-guest doping, offering great potential for information encryption, fingerprint identification,...
ArtikelESIPT‐Active Pyrene‐imidazole Fluorophores: GSIPT, Dual Solid‐ and Solution‐State Emission plus Counter‐Intuitive Crystal Packing von Vinutha K. et al. · 07.08.2023 A novel pyrene-imidazole-based ESIPT-active molecules have been developed that exhibit unique ground state enol to keto transformation and dual solid- and solution-state emission. Abstract We report a new excited-state intramolecular proton transf...
ArtikelElectron‐Deficient Phenanthrenequinone Derivative for Photoactivated Hydrogen Atom Transfer Mediated Oxidation of Secondary Alcoholsvon Juulia Talvitie et al. · 03.08.2023 We designed a synthetic route for previously unpublished photocatalyst, 3,6-bis(trifluoromethyl)-9,10-phenanthrenequinone (PQ-CF3), and studied its photophysical properties in comparison with other known phenanthrenequinones. The photocatalytic effi...
ArtikelTriplet Formation and Triplet‐Triplet Annihilation Upconversion in Iodine Substituted Non‐Orthogonal BODIPY‐Perylene Dyadsvon Keshav Kumar et al. · 24.07.2023 BODIPY-perylene nonorthogonal dyad forms three kinds of triplet species through SOCT-ISC and SO-ISC mechanism. All three kinds of triplet species participate in energy transfer to annihilator molecules. Two annihilator molecules produce one anti-Sto...
ArtikelHeterogeneous Photocatalysts for Light‐Mediated Reversible Deactivation Radical Polymerization
ArtikelPeptide‐Bridged Naphthalimide–Dithienylethene Dyad with Aggregation‐Induced‐Emission Activity: Application in Forensic Fingerprint Technologyvon Manisha Karmakar et al. · 05.07.2023 Design and synthesize: A new class of photoswitchable materials integrating photochromic properties with aggregation-induced emission behavior via supramolecular self-assembly was developed. The materials (unsymmetrical peptide-bridged naphthalimide...
ArtikelBiVO4 Heterojunctions as Efficient Photoanodes for Photoelectrochemical Water Oxidation: A Minireview
