Results 61 to 70 of about 6,607 (150)

The Challenging P‐Alkylation of Aromatic Phosphorus Heterocycles and Follow‐Up Reactions

open access: yesChemistryEurope, EarlyView.
P‐alkylation of λ3σ2‐phosphinines is hindered by weak nucleophilicity and scarce synthetic access, previously requiring multistep routes or extreme electrophiles. A direct ambient‐condition method is reported using 3,5‐bis(trimethylsilyl)‐phosphinine/B(C6F5)3 with esters or iso(thio)cyanates to generate stable 1‐R‐phosphininium salts.
Samantha Frank   +6 more
wiley   +1 more source

Quantum Chemistry Investigation of Linear and Nonlinear (chir)optical Properties of Oligoamide Foldamers

open access: yesChemistryEurope, EarlyView.
The linear and nonlinear (chir)optical properties of four oligoamide foldamers with different donor groups are studied by means of time‐dependent density functional theory calculations. It is shown that stronger donors yield larger hyperpolarizabilities due to low‐lying charge–transfer states. The agreement with the experiments concerning the key bands
Komlanvi Sèvi Kaka   +5 more
wiley   +1 more source

Photochemistry of Aromatic N‐Oxides in Water Probed by Time‐Resolved X‐ray Absorption Spectroscopy

open access: yesChemistry – A European Journal, EarlyView.
Time‐resolved XAS at the nitrogen and oxygen K‐edges is applied to the photorearrangement of two N‐oxides in water. Pyridine N‐oxide rapidly forms the oxaziridine isomer. Pyridazine N‐oxide undergoes ring opening to the diazo compound, without any evidence of intermediates.
Maximilian Paradiz Domínguez   +3 more
wiley   +1 more source

Large-basis shell-model calculation of 10C->10B Fermi matrix element

open access: yes, 1997
We use a $4\hbar\Omega$ shell-model calculation with a two-body effective interaction derived microscopically from the Reid93 potential to calculate the isospin-mixing correction for the 10C->10B superallowed Fermi transition.
A. Ozawa   +39 more
core   +1 more source

Uncovering the Interaction Nature of Solvation Shell for Transition‐Metal‐Based Aqueous Batteries

open access: yesEcoEnergy, EarlyView.
Multiscale analyses are adopted to demystify the interaction and regularize the mechanism of ligand regulation for solvation by the methods of quantum chemistry, molecular dynamics, and wavefunction analyses. ABSTRACT Transition‐metal‐based aqueous batteries, particularly iron and zinc‐based systems, have emerged as promising candidates for energy ...
Yuxi Song   +7 more
wiley   +1 more source

The GUINEVERE Project for Accelerator Driven System Physics

open access: yes, 2009
paper 9414International audienceThe GUINEVERE project is part of the EUROTRANS Integrated Project of the 6th EURATOM Framework Programme. It is mainly devoted to ADS on-line reactivity monitoring validation, sub-criticality determination and operational ...
Aït Abderrahim, H.   +29 more
core   +1 more source

Tailoring Thermophysical Properties and Multiscale Machine Learning Modeling of 2D Nanomaterial‐Infused Beeswax as a Green NePCM for Sustainable Thermal Management Systems

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study develops eco‐friendly two‐dimensional nanoparticle‐enhanced phase change materials (2D NePCMs) using biodegradable beeswax infused with rGO, GO, and MXene nanoparticles. Experimental results demonstrated up to 21.9% enhancement in thermal conductivity with minimal latent heat loss, while machine learning models achieved >95% predictive ...
Abdullah Aziz   +3 more
wiley   +1 more source

Synergetic Effect of Silicate Addition on Modifying Zincate Solvation and Regulating ZnO Formation Revealed by In Situ Raman Observation during Zn Discharging

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A practical and synergetic interfacial engineering strategy via silicate addition to modulate the Zn passivation issue for developing rechargeable Zn batteries is introduced. Zn offers higher safety and lower material cost over Li, making it promising alternative anode material for secondary batteries and grid‐scale sustainable energy storage ...
Tanyanyu Wang   +3 more
wiley   +1 more source

Benzoyl‐Xanthenoxanthenes: Versatile Chromophores for Light‐Engaging Applications

open access: yesAngewandte Chemie, Volume 138, Issue 7, 9 February 2026.
Oxidatively stable benzoyl‐fused peri‐xanthenoxanthene ribbons with NIR emission were synthesized. Their good spectral overlap enabled cascaded Förster resonance energy transfer (FRET) antennae in a nematic liquid crystal phase, achieving directional energy transfer.
Cristian De Luca   +10 more
wiley   +2 more sources

More on Heisenberg's model for high energy nucleon-nucleon scattering

open access: yes, 2015
We revisit Heisenberg's model for nucleon-nucleon scattering which admits a saturation of the Froissart bound. We examine its uniqueness, and find that up to certain natural generalizations, it is the only action that saturates the bound. We find that we
Nastase, Horatiu, Sonnenschein, Jacob
core   +2 more sources

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