Results 181 to 190 of about 615,680 (330)

A Direct Measurement of the Absolute Energies of Protonated Gly‐Pro‐Gly‐Gly Conformations Using Ion Mobility Spectrometry and Guided Ion Beam Tandem Mass Spectrometry

open access: yesChemPhysChem, EarlyView.
Relative energies of the cis and trans conformers of the protonated tetrapeptide, Gly‐Pro‐Gly‐Gly, selected by ion mobility spectrometry are measured using threshold collision‐induced dissociation. The trans conformation was found to be more stable than the cis conformation by 4.5 ± 2.5 kJ mol−1 at 0 K, a value in agreement with several levels of ...
Brandon C. Stevenson   +3 more
wiley   +1 more source

Dibenzofuran[a]‐Fused BODIPYs: Synthesis, Photophysical Properties, and N2O2‐Boron‐Chelation Towards NIR Materials for Application in Organic Photodetectors

open access: yesChemPlusChem, EarlyView.
Our interest in developing NIR‐absorbing photodetectors, the dibenzofuran [a]‐fused N2O2‐boron chelated derivative A was synthesized, exhibiting an intense absorption band with a λmax value of 812 nm and a dual emission when excited at 375 nm.
Airi Suzuki   +3 more
wiley   +1 more source

Low‐Energy Electron‐Induced Dissociation of the Radiosensitizing Agent Sanazole

open access: yesChemPlusChem, EarlyView.
Employing mass spectrometry supported by quantum chemical calculations, electron attachment to gas‐phase and microhydrated sanazole, a hypoxic radiosensitizer, is examined. The results suggest that hydration closes and/or slows down the dissociation process and indicates that the initial mechanism of action in a reductive cell environment may be ...
Farhad Izadi   +5 more
wiley   +1 more source

Room Temperature Luminescence from a Biscyclometalated Platinum(II) Complex Bearing Radical as Ancillary Ligand

open access: yesChemPlusChem, Accepted Article.
Doublet emission from transition metal complexes presents a promising approach to enhance the long‐term stability of organic‐light emitting diodes (OLEDs) by mitigating triplet‐triplet annihilation, a key factor that degrades OLED performance. In this study, a stable persistent radical (Pybtm) was incorporated as an ancillary ligand into a platinum(II)
Sandhya Verma   +6 more
wiley   +1 more source

Simultaneous Optimization of Both Electrocyclization and Cycloreversion Reactions of Diarylethene Photoswitches for Solar‐Energy Storage

open access: yesChemPhotoChem, EarlyView.
A major challenge for the use of molecular photoswitches in solar‐energy storage is finding the right balance between long storage times and large energy densities. Here, studying diarylethene switches, it is shown computationally that this challenge can be eased by using aromaticity to tailor two separate parts of a tricyclic π‐linker between the aryl
Jun Wang   +4 more
wiley   +1 more source

Scalable flux controllers using adiabatic superconductor logic for quantum processors [PDF]

open access: gold, 2023
Naoki Takeuchi   +5 more
openalex   +1 more source

Electrical Conductivities and Low Frequency Opacities in the Warm Dense Matter Regime

open access: yesContributions to Plasma Physics, EarlyView.
ABSTRACT In this article, we examine different approaches for calculating low frequency opacities in the warm dense matter regime. The relevance of the average‐atom approximation and of different models for calculating opacities, such as the Ziman or Ziman–Evans models is discussed and the results compared to ab initio simulations.
Mikael Tacu   +3 more
wiley   +1 more source

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