Results 91 to 100 of about 181,535 (188)

Elucidating the Fe(III) Directed 15‐Step Domino Inter‐ and Intramolecular Progressive Coordinative Oligomerization of a Heterocycle Aggregate

open access: yesAggregate, EarlyView.
A domino reaction leading to the novel heterocyclic aggregate 2,9‐dihydrobenzo[b]cyclopenta[e][1,4]thiazine has been developed, with its mechanism elucidated by crystallography and ESI‐MS to reveal a 15‐step reaction sequence (the longest reported to date) involving intermolecular C‐C coupling and intramolecular expansion.
Kai‐Bin Chen   +9 more
wiley   +1 more source

Engineering a Meltable MOF to Tune Liquid Transition and Promote Coenzyme Regeneration

open access: yesAngewandte Chemie, EarlyView.
Through a liquid–liquid transition process, a bimetallic glassy MOF is fabricated. It has exceptional glass‐forming properties, evenly distributed bimetallic ions, and a markedly higher visible‐light‐driven photogeneration efficiency of enzymatically active NADH.
Wengang Huang   +15 more
wiley   +2 more sources

Surface Tailoring on Atomically Precise Gold Nanocluster for Aggregation‐Induced Emission and Bioimaging Application

open access: yesAggregate, EarlyView.
A new Au18 nanocluster with aggregation‐induced emission (AIE) was synthesized through a strategy of specific‐site “surgery,” which shows a dual‐emission at 645 and 810 nm in the aggregate state. The AIE photophysical behavior and PL mechanism were systematically investigated by experimental and theoretical results.
Yongbo Song   +8 more
wiley   +1 more source

Photo‐ and Electroluminescence of N,N‐Diphenylaminophenyl–Quinoxaline Donor–Acceptor‐Type Dyes: Electronic Impacts of Electron‐Withdrawing Ability of the Acceptor Unit

open access: yesAsian Journal of Organic Chemistry, EarlyView.
Compact N,N‐diphenylaminophenyl–quinoxaline donor–acceptor‐type dyes were synthesized, and the effects of substituents on the fluorescence properties were investigated. Introduction of electron‐withdrawing groups to the quinoxaline acceptor caused a red shift of the emission, and furthermore, thermally activated delayed fluorescence was facilitated by ...
Masaki Nagaoka   +6 more
wiley   +1 more source

Nuclear Quantum Confinement Enables Robust Deuterium Bonds for Highly Reversible Aluminum Anodes

open access: yesAngewandte Chemie, EarlyView.
Quantum confinement by leveraging D as a quantum bridge is engineered to tailor stronger intra‐ and intermolecular D‐bonds, effectively suppressing water reactivity and achieving exceptional HER inhibition. The induced Al3+ solvation structures further inhibit the decomposition of water at the interface and improve Al redox reversibility.
Hao Cheng   +9 more
wiley   +2 more sources

Tuning Antiaromaticity Through Meso‐Substituent Orientation in Core‐Modified Isophlorins

open access: yesAsian Journal of Organic Chemistry, EarlyView.
The antiaromaticity of dithiadioxaisophlorins is controlled by the steric bulkiness of meso‐substituents through their tilt angle relative to the macrocycle. Bulkier substituents maintain larger angles, preserving stronger antiaromaticity, while smaller groups facilitate π‐conjugation with the macrocycle, diminishing antiaromaticity.
Maika Isoda   +3 more
wiley   +1 more source

Light‐Driven Ratchet Mechanism Accelerates Regioselective Metal‐Cation Exchange in a Heterobimetallic Helicate

open access: yesAngewandte Chemie, EarlyView.
Photoswitchable homo‐ and heterobimetallic helicates form with high diastereo‐ and regioselectivity via single‐step self‐assembly or self‐sorting. White‐light exposure autonomously operates one helicate as a molecular ratchet, promoting the selective formation of an out‐of‐equilibrium structure.
Maximilian J. Notheis   +2 more
wiley   +2 more sources

Extracellular Vesicles in Calcium Oxalate Nephrolithiasis: Emerging Biomarkers and Therapeutic Potential

open access: yesAdvanced NanoBiomed Research, EarlyView.
Kidney stones cause significant pain and healthcare costs. Current prediction, diagnosis, and treatment options are limited. Extracellular vesicles (EVs), rich in proteins, lipids, and nucleic acids, offer a promising solution. This review explores the roles of EVs in kidney stone management, highlighting their potential as biomarkers and therapeutic ...
Wang Zhu   +3 more
wiley   +1 more source

Hinge‐Like Mechanochromic Mechanophores Based on [2.2]Paracyclophane

open access: yesAngewandte Chemie, EarlyView.
Hinge‐like supramolecular mechanophores utilizing [2.2]paracyclophane have been developed. In the force‐free state, the rigid [2.2]paracyclophane forces two luminophores into proximity, leading to excimer‐dominant photoluminescence. Stretching the polyurethane films into which the mechanophores are covalently incorporated results in the structures of ...
Shohei Shimizu   +3 more
wiley   +2 more sources

Catalytic Polymerization of n‐Doped Poly(benzodifurandione) (n‐PBDF) Using Parts Per Million (ppm) Levels of Molybdenum Trioxide

open access: yesAngewandte Chemie, EarlyView.
An efficient, scalable, and cost‐effective catalytic polymerization of n‐PBDF using ppm levels of MoO3 was developed in this study. Kinetic studies reveal that this polymerization demonstrates chain‐growth characteristics, enabling the preparation of high‐quality n‐PBDF polymers. Mechanistic investigations reveal that MoO3 mediates an oxidative pathway
Guangchao Liu   +9 more
wiley   +2 more sources

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