Results 91 to 100 of about 6,232 (230)

Ab initio studies on photorelaxation [PDF]

, 2017
This work addresses relaxation mechanisms of photoexcited organic molecules of small and medium size, up to 62 atoms. For most systems it is investigated theoretically, how modifications, often in the form of substituents, influence the decay processes ...
Oesterling, Sven
core  

Solvent Effects on the Actinic Step of Donor-Acceptor Stenhouse Adduct Photoswitching [PDF]

, 2018
Donor-acceptor Stenhouse adducts (DASAs) are negative photochromes that switch with visible light and are highly promising for applications ranging from smart materials to biological systems.
Buma, Wybren Jan, Bussotti, Laura, Di Donato, Mariangela, Feringa, Ben L., Foggi, Paolo, Iagatti, Alessandro, Lapini, Andrea, Laurent, Adele D., Lerch, Michael M., Medved, Miroslav, Szymanski, Wiktor   +10 more
core   +5 more sources

Electrochemical Dye Switching Assisted Spectral Demixing and 3D STORM Imaging

Angewandte Chemie, Volume 138, Issue 18, 27 April 2026.
ABSTRACT Super‐resolution microscopy has advanced cellular imaging by enabling nanoscale resolution, while reliable multicolor strategies remain crucial for resolving multiple targets in complex cellular samples. Here, we demonstrate a two‐color imaging strategy using electrochemically controlled stochastic optical reconstruction microscopy (EC‐STORM),
Ying Yang, Yuanqing Ma, Justin Gooding
wiley   +2 more sources

Synthesis of Dithienylcycloalkene Molecular Switches Enabled by a Bench‐Stable Ti‐Complex

Chemistry – A European Journal, EarlyView.
Herein we report a set of cycloalkene‐bridged DTEs with ring sizes ranging from 4‐ to 7‐membered rings. The synthesis of these analogs was performed via a key McMurry coupling step, which was enabled by a practical, bench‐stable Ti(IV)‐complex. Remarkably, it is shown that the strained cyclobutene bridge outperforms other rings, even the most commonly ...
Marcell M. Bogner, Márton Hegedűs, Péter P. Kalapos, Attila Kunfi, Gábor London   +4 more
wiley   +1 more source

Oxygen‐Acceptor‐Driven High Photochromic Contrast Solid‐State Excited‐State Intramolecular Proton Transfer Photoswitches

Angewandte Chemie, Volume 138, Issue 18, 27 April 2026.
The excited‐state intramolecular proton transfer (ESIPT) photoswitch tpmSA, which features an oxygen−acceptor, exhibits higher photochromic contrast (ΔE*Lab>74) than its nitrogen‐acceptor Schiff base analogues (ΔE*Lab<30). Theoretical calculations indicate that tpmSA effectively suppresses GSIPT, thereby enhancing the contrast.
Yahui Chen, Wenjing Wang, Hao Gu, Qinlin Yuan, Yeju Lee, Xin He, Chao Wang, Yaqian Huang, Juyoung Yoon, Xiaoqiang Chen, Xiaojun Peng   +10 more
wiley   +2 more sources

Photoswitching of the Two‐Photon Absorption of Donor‐Acceptor Substituted Dithienylethenes

ChemistryEurope
In this work the structural and electronic integration of push–pull systems with photoactivatable dithienylethenes (DTEs) is demonstrated. The light‐induced 6π‐electrocyclization of two asymmetrically substituted DTEs is used to conjugate an electron ...
Francisco G. Blandón‐Cumbreras, Marc Villabona, Julia Osmólska, Elizaveta F. Petrusevich, David B. Guzmán Ríos, Robert Zaleśny, Joanna Olesiak‐Bańska, Jordi Hernando, Uwe Pischel   +8 more
doaj   +1 more source

Selection of isomerization pathways of multistep photoswitches by chalcogen bonding

Nature Communications, 2023
Multistep photoswitches are able to engage in different photoisomerization pathways and are challenging to control. Here we demonstrate a multistep sequence of E/Z isomerization and photocyclization/cycloreversion of photoswitches via manipulating the ...
Shuaipeng Jia, Hebo Ye, Peng He, Xin Lin, Lei You   +4 more
doaj   +1 more source

Dynamic Control of Nucleic Acids Self‐Assembly and Expression Using Photoswitches

Chemistry – A European Journal, EarlyView.
We review here the recent progress made in the design of molecular photoswitches, and highlight their implementation for the dynamic control over nucleic acids self‐assembly and expression. ABSTRACT Synthetic nucleic acids have become readily available and now constitute versatile building blocks in materials science—where they can be used to engineer ...
Noemí Nogal, Hugo Laigle, Maxime Mansy, Sébastien Ulrich, Mathieu Surin   +4 more
wiley   +1 more source

Storage and Processing of Information Using Molecules: The All-Photonic Approach with Simple and Multi-Photochromic Switches [PDF]

, 2013
The use of photochromes for the implementation of molecular logic operations is a very promising approach toward molecular computing. This statement is based on a) the possibility of operating such molecular devices exclusively with photonic signals and ...
Andreasson, Andréasson, Andréasson, Andréasson, Andréasson, Andréasson, Andréasson, Andréasson, Andréasson, Berberich, Chen, Credi, de Ruiter, de Silva, de Silva, Fukaminato, Guo, Guo, Hirshberg, Kumar, Kärnbratt, Langford, Langford, MacVittie, Margulies, Margulies, Myles, Pischel, Pischel, Pischel, Puntoriero, Pärs, Qu, Raymo, Raymo, Raymo, Remón, Remón, Silvi, Straight, Sun, Suresh, Tian, Zhang, Zhang, Zou   +45 more
core   +1 more source

Fundamental limitations on photoisomerization from thermodynamic resource theories [PDF]

, 2020
Small, out-of-equilibrium, and quantum systems defy simple thermodynamic expressions. Such systems are exemplified by molecular switches, which exchange heat with a bath.
Halpern, Nicole Yunger, Limmer, David T.
core   +3 more sources