Results 171 to 180 of about 42,464 (282)

Conformational Fixation and Experimentally Guided Modeling of Excited‐State Relaxation in 3‐Morpholino Propenylidene Indolone Merocyanines

Aggregate, Volume 7, Issue 11, November 2026.
Conformational fixation of donor–acceptor merocyanines modulates excited‐state relaxation and fluorescence. Viscosity‐ and aggregation‐dependent emission, combined with TDDFT calculations, reveal a strongly twisted charge‐separated state in solution and a torsionally constrained emissive state in rigid environments, establishing a unified picture of ...
Christian Muschelknautz, Larissa Brandner, Klaus Schaper, Bernhard Mayer, Thomas J. J. Müller   +4 more
wiley   +1 more source

Redox‐Active Verdazyl Radical Polymers via Postpolymerization Modification of Active Ester Polymers

ChemPlusChem, Volume 91, Issue 11, November 2026.
Organic radical polymers were synthesized via postpolymerization modification (PPM) of poly(pentafluorophenyl (meth)acrylate) with diverse 6‐oxoverdazyl stable radicals. This work servs as an electrochemical proof‐of‐concept, exhibiting a chemically reversible redox couple at 3.43 V versus Li/Li+, validating the electrochemical accessibility of the ...
Theo A. Ellingsen, James D. Randall, Bhagya Dharmasiri, Wesley J. Olivier, Luke C. Henderson, Melissa K. Stanfield, Stuart C. Thickett, Rebecca O. Fuller   +7 more
wiley   +1 more source

Reactivity of a d² Mo(IV) Alkylidyne Fragment Bearing a PNCNP Pincer Ligand Toward Alkynes: Coordination and Catalytic Alkyne Metathesis. [PDF]

Angew Chem Int Ed Engl
Song J, Li Q, Guo W, Yin S, Liao Q.
europepmc   +1 more source

A Chemically Recyclable 1,3,5‐Triazine‐Based Epoxy Thermoset Enabled by Nucleophilic Aromatic Substitution Reaction

Macromolecular Rapid Communications, Volume 47, Issue 21, 6 November 2026.
High‐performance 1,3,5‐triazine epoxy networks are prepared via solvent‐free curing and recycled using nucleophilic aromatic substitution (SNAr) chemistry. This robust thermoset undergoes clean depolymerization into well‐defined building blocks for seamless repolymerization, achieving chemical recycling while preserving thermomechanical performance ...
Yi‐Ru Chen, Fabian Eisenreich, A. Catarina C. Esteves, Željko Tomović   +3 more
wiley   +1 more source

Synergistic Silylium‐Ion and Palladium Catalysis Enables Migratory Alkene Silylation With Allylsilanes by Formal C–H/C–Si Metathesis

Angewandte Chemie, Volume 138, Issue 44, 26 October 2026.
Merging silylium‐ion and palladium catalysis provides a mechanistically distinct route to allylsilanes by formal C–H/Si–H metathesis. Using allylsilanes as silicon proelectrophiles, various allylarenes undergo migrative silylation, selectively yielding (E)‐allylsilanes.
Longhui Duan, Zheng‐Wang Qu, Stefan Grimme, Elisabeth Irran, Hendrik F. T. Klare, Martin Oestreich   +5 more
wiley   +2 more sources

Repurposing Diels-Alder Chemistry to Access Low-Strain Monomers for Chemically Recyclable ROMP Polymers. [PDF]

ACS Macro Lett
Ibrahim T, Rahman MA, Kaczynski M, Cardella C, Sun H.   +4 more
europepmc   +1 more source

Theoretical Framework for Predicting Dynamic Covalent Exchange Based on Proton Affinities and Proton‐Transfer Assistance

Chemistry – A European Journal, Volume 32, Issue 40, 27 October 2026.
Proton‑transfer catalysis controls acylsemicarbazide dissociation, linking proton affinity to exchange kinetics and enabling predictive design of robust, tunable dynamic covalent networks. ABSTRACT We provide design principles for predicting bond exchange kinetics in acylsemicarbazide (ASC)‐based systems that can be applied to tuning the properties of ...
Siebe Lekanne Deprez, Stefan J. D. Maessen, Angelina N. van Dam, Celine Nieuwland, Pascal Vermeeren, Anja R. A. Palmans, Célia Fonseca Guerra   +6 more
wiley   +1 more source

Revisiting Self-Metathesis of Fatty Acids and Esters: Contribution to Renewable Chemicals Under the Carbon Rainbow Strategy. [PDF]

Chemistry
Gruszczyńska E, Sytniczuk A, Grela K.
europepmc   +1 more source

Electrochemiluminescence of Heteroleptic Iridium(III) Complexes Featuring Substituted 2,4‐diphenylpyridinato Ligands

Chemistry – A European Journal, Volume 32, Issue 40, 27 October 2026.
Five heteroleptic iridium(III) complexes bearing cyclometalated 2,4‐diphenylpyridinato ligands were synthesized and their electrochemiluminescence (ECL) investigated. Two different coreactants were evaluated: tri‐n‐propylamine and benzoyl peroxide under anodic and cathodic potentials, respectively.
Ovini Jayawardana, El M. S. Martin, Oliver G. Stansfield, Egan H. Doeven, Carol Hua, Timothy U. Connell, Paul S. Francis   +6 more
wiley   +1 more source

1,3‐Brook Rearrangement of α‐Silyl Allylic Alcohols: Copper‐Catalyzed Enantiospecific Formation of Allenes and Copper‐Mediated ipso‐Substitution Reactions Affording Trisubstituted Alkenes

Angewandte Chemie, Volume 138, Issue 44, 26 October 2026.
A regioselective ruthenium catalyzed trans‐hydrosilylation of propargyl alcohols followed by a 1,3‐Brook rearrangement opens access to reactive organocopper intermediates, which evolve upon warming into allenes with strict chirality transfer to the emerging axis; alternatively, these reactive species can be trapped with a large variety of electrophiles
Jack L. Sutro, Felix Anderl, Paul Haf‐Moths, Alois Fürstner   +3 more
wiley   +2 more sources