Results 161 to 170 of about 75,325 (204)

Unveiling the Power of Computational Tools in Chiral Liquid Chromatography. [PDF]

open access: yesMolecules
Lima R   +4 more
europepmc   +1 more source

Chiral Porphyrin Monolayers on Ferromagnetic Thin Films: Ultrafast Spectroscopy of Hybrid Interfaces

open access: yesAdvanced Optical Materials, Volume 14, Issue 33, 4 September 2026.
Chiral porphyrin–oligopeptide monolayers covalently bound to Au‐capped Co/Ni multilayers form surface‐parallel J‐type aggregates and exhibit measurable singlet‐state transient absorption despite monolayer coverage. Femtosecond pump–probe spectroscopy reveals strong excited‐state quenching at the metal interface, yet no long‐lived charge‐transfer ...
Karol Hauza   +7 more
wiley   +1 more source

Regioselective π‐Extension of Helical PAHs: Tuning Energy Gaps and Excited‐State Dynamics Directed by Clar's Sextet Migration

open access: yesAdvanced Optical Materials, Volume 14, Issue 35, 18 September 2026.
Central and terminal ring fusions of per‐peri‐perbenzo[7]helicene (PB[7]H) yield novel helical polycyclic aromatic hydrocarbons (HPAHs). The migration of Clar's aromatic sextets governs the inner‐rim stiffness. This topology‐directed strategy bridges the discrete optical gaps of homologous series. Transition moment density (TMD) analysis visualizes the
Zhibo Liu   +3 more
wiley   +1 more source

Determination of Enantiomers of Deschloroketamine and Its Metabolites in Wistar Rat Brains. [PDF]

open access: yesJ Sep Sci
Paškanová N   +6 more
europepmc   +1 more source

Alkoxyallenes in Modern Synthesis: Reactivity, Catalysis, and Complexity Generation

open access: yesAdvanced Synthesis &Catalysis, Volume 368, Issue 17, 1 September 2026.
The last decade has witnessed a remarkable transformation in alkoxyallene chemistry. Although historically employed as synthetic equivalents of acrolein or as versatile 3C synthons, alkoxyallenes are now increasingly recognized as highly adaptable platforms for synthetic design.
A. Lanfranco   +5 more
wiley   +1 more source

Enhanced Stereochemical Analysis of β‑Diastereomeric Amino Acids with Variants of Marfey's Reagent. [PDF]

open access: yesACS Omega
Studinski CI   +9 more
europepmc   +1 more source

Discrimination of Truffles and Truffle Oils by a Metal–Organic‐Framework‐Based Electronic Nose

open access: yesAdvanced Sensor Research, Volume 5, Issue 9, September 2026.
A portable electronic nose based on MOF‐coated QCM sensors enables rapid authentication of truffles and truffle‐derived oils. Characteristic response patterns distinguish fresh truffle species, homemade and commercial oils, and samples adulterated with dimethyl sulfide.
Salih Okur   +8 more
wiley   +1 more source

Cobalt/Photoredox Catalyzed Desymmetrization of Oxo and Azabicycles via Asymmetric Reductive Coupling With Alkynes

open access: yesAdvanced Science, Volume 13, Issue 52, 18 September 2026.
A one‐step, asymmetric reductive coupling of alkynes and oxa‐ and aza‐bicyclic olefins using a cobalt/photoredox catalytic system through desymmetrization. ABSTRACT Bicyclo[2.2.1]heptane frameworks represent a privileged structural motif prevalent in numerous natural products and bioactive molecules.
Subhankar Pradhan   +5 more
wiley   +1 more source

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