Results 221 to 230 of about 49,383 (312)

Photochemistry of an Anti-Bredt Olefin through the Lens of Multistate Multireference Quantum Chemistry. [PDF]

J Am Chem Soc
Bezabih MS, Sacchetta F, Blanco-González A, Olivucci M.   +3 more
europepmc   +1 more source

Photoactivated Signaling Networks using DNA‐Based Synthetic Organelles as Biomimetic Protocells

Angewandte Chemie, EarlyView.
Light‐triggered intercommunication between two types of organelle‐loaded liposomes lead to DNAzyme‐mediated on transcription‐guided structural reconfiguration of the organelles. ABSTRACT Membraneless organelles formed by phase‐separated nucleic acid or protein condensates play vital roles in regulating cellular functions.
Huiying Xue, Yunlong Qin, Yichen Han, Shijun Xu, Itamar Willner, Fan Xia, Fujian Huang   +6 more
wiley   +1 more source

Light-Induced On-Surface Reactions: Bridging Photochemistry and Surface Science. [PDF]

Chempluschem
Frezza F, Jelínek P, Canola S, Sánchez-Grande A.   +3 more
europepmc   +1 more source

Synergistic Lewis Acid Photocatalysis Over Cluster‐Defect‐Engineered UiO‐66 for Efficient Liquid Biomass Upgrading

Angewandte Chemie, EarlyView.
A cluster‐defect engineering strategy is presented for the rational design of Zn‐incorporated UiO‐66 photocatalysts. Selective acid etching mediates hierarchical porosity and abundant Lewis acid sites, tailoring the electronic structure and enhancing light harvesting.
Hao Wang, Li‐Long Zhang, Haimei Xu, Baohua Jia, Liqun Ye, Tianyi Ma, Heng Zhang   +6 more
wiley   +1 more source

Pigment-Structure Leaf Syndromes in Poinsettia (<i>Euphorbia pulcherrima</i> Willd. ex Klotzsch) Alter Chloroplast Ultrastructure, Biochemical Profiling, and Photosynthetic Quantum Yields. [PDF]

ACS Omega
Falcioni R, Antunes WC, Demattê JAM, Nanni MR.   +3 more
europepmc   +1 more source

Pyridine C─N Transposition via Cycloaddition–Cycloreversion

Angewandte Chemie, EarlyView.
Transposition of pyridine nitrogen from the 4‐ to the 3‐position is described using two open and shut sequences: a nucleophile addition ring‐open ring‐closure, followed by a nitrile Diels–Alder cycloaddition cycloreversion. The nitrogen swap is particularly effective for tertiary alkyl substituents, transforming easily accessible para‐alkylated ...
Aífe Conboy, Michael F. Greaney
wiley   +1 more source

Precision Photochemistry: Every Photon Counts. [PDF]

Angew Chem Int Ed Engl
Pashley-Johnson F, Wu X, Carroll JA, Walden SL, Frisch H, Unterreiner AN, Du Prez FE, Wagenknecht HA, Read de Alaniz J, Feringa BL, Heckel A, Barner-Kowollik C.   +11 more
europepmc   +1 more source

Mechanistic Insight Into the Polymorph‐Dependent Photosalient Effect of a White Light or Two‐Photon Activated Photoreactive Molecular Salt

Angewandte Chemie, EarlyView.
Photocycloaddition in stilbene‐type salt polymorphs exhibit distinct light‐driven responses: OHT‐TI shows a violent photosalient effect under visible and NIR (two‐photon) irradiation, whereas OHT‐TII reacts statically. Packing and computational analysis reveals that shell‐like structures in OHT‐TI frustrate structural relaxation, accumulating explosive
Emanuela Santagata, Francesco Ambrosio, Amedeo Capobianco, Andrea Peluso, Giorgia Rizzi, Stijn Van Cleuvenbergen, Yovan de Coene, Koen Clays, Paolo Pio Mazzeo, Roberto Centore, Fabio Borbone   +10 more
wiley   +1 more source

Free-running ultraviolet dual comb spectroscopy enabling absolute electronic fingerprinting. [PDF]

Photonix
Fürst L, Pal M, Eber A, Hruska E, Hofmann C, Gordon IE, Schultze M, Breinbauer R, Bernhardt B.   +8 more
europepmc   +1 more source

Direct δ‐Lactone Synthesis From Free Alcohols via Photoinduced δ‐C(sp3)–H Carbonylation in Flow

Angewandte Chemie, EarlyView.
Herein, we have developed a photo‐flow platform for the δ‐C(sp3)─H carbonylative lactonization of free alcohols with carbon monoxide. The transformation integrates alkoxyl radical generation, selective 1,5‐HAT, CO incorporation, and radical–polar crossover to enable direct access to δ‐lactones from simple alcohol precursors.
Prakash Chandra Tiwari, Runkang Liu, Timothy Noël   +2 more
wiley   +1 more source