Results 221 to 230 of about 504,986 (312)

Effect of Substituents on the Tautomerism of Pyridone Nucleoside Analogs

open access: yesEuropean Journal of Organic Chemistry, Volume 28, Issue 14, April 7, 2025.
Experimental and quantum‐chemical work shows that the predominant tautomer of 6‐fluoropyridones is the lactim, not the lactam form. This makes them analogs of cytosine, not uracil or thymine in the context of incorporation opposite complementary bases of genetic sequences. Abstract Nucleobase analogs are important tools in medicine and chemical biology,
Leon Stark   +7 more
wiley   +1 more source

Superconductivity in PrNiO2 Infinite‐Layer Nickelates

open access: yesAdvanced Materials, Volume 37, Issue 16, April 23, 2025.
This study unveils a superconducting state in undoped parent compound PrNiO2 thin films, challenging previous views on nickelate superconductivity. Through scanning transmission electron microscopy and spectroscopic techniques, the research demonstrates the high structural quality and distinct electronic properties of the thin films grown by pulsed ...
Hoshang Sahib   +8 more
wiley   +1 more source

Photo‐Induced Bandgap Engineering of Metal Halide Perovskite Quantum Dots In Flow

open access: yesAdvanced Materials, Volume 37, Issue 16, April 23, 2025.
This work presents a photochemical synthetic route for bandgap engineering of metal halide perovskite quantum dots. Utilizing a material‐efficient microfluidic platform, the underlying mechanism of the photo‐induced anion exchange reaction (PIAER) of metal halide perovskite quantum dots is unveiled and first instance of the PIAER‐enabled synthesis of ...
Pragyan Jha   +9 more
wiley   +1 more source

Quantum harmonic oscillator with superoscillating initial datum [PDF]

open access: green, 2014
Roman V. Buniy   +3 more
openalex   +1 more source

Photochromic Molecules Enable Optical Control of Optomechanical Coupling in a Cavity

open access: yesAdvanced Optical Materials, Volume 13, Issue 10, April 4, 2025.
An optomechanical system with optically‐tunable coupling is introduced, featuring a multilayered membrane with a photochromic molecule and NIR‐absorbing dye. Laser cooling of a membrane vibrational mode is evidenced, with a 60% improvement in efficiency achieved upon photoisomerization, as well as reversible control of photothermal forces.
Marta Cagetti   +7 more
wiley   +1 more source

Vibrational effects on polarizability: insights from normal mode analysis. [PDF]

open access: yesSci Rep
Cassiano TSA   +3 more
europepmc   +1 more source

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