Results 101 to 110 of about 611,030 (339)

3,4-Diaminopyridinium hydrogen succinate

Acta Crystallographica Section E, 2009
In the title compound, C5H8N3+·C4H5O4−, the pyridine N atom of the 3,4-diaminopyridine molecule is protonated. The protonated N atom participates in an N—H...O hydrogen bond to a succinate O atom of the singly deprotonated ...
Hoong-Kun Fun, Kasthuri Balasubramani
doaj   +1 more source

Key Trends and Insights in Smart Polymeric Skin Wearable Patches

Advanced Engineering Materials, EarlyView.
Intelligent polymers, which respond to various physical and biological stimuli, are explored for the development of skin wearable patches in biomedical applications. Smart polymers, also known as intelligent or stimuli‐responsive polymers, play a crucial role in the development of advanced wearable patches due to their versatility and softness.
Sergio J. Peñas‐Núñez, Rajat Rai, Miryam Criado‐Gonzalez   +2 more
wiley   +1 more source

Bis(acetato-κO)bis(pyridine-2-aldoxime-κ2N,N′)nickel(II)

Acta Crystallographica Section E, 2012
In the mononuclear title compound, [Ni(CH3COO)2(C6H6N2O)2], the NiII atom is coordinated by two pyridine-2-aldoxime (PaoH) ligands and two acetate groups, with cis coordination for the pairs of identical ligands.
Youtao Si
doaj   +1 more source

Precision Spectroscopy of Atomic Hydrogen

Journal of Physics: Conference Series, 2013
Precise determinations of transition frequencies of simple atomic systems are required for a number of fundamental applications such as tests of quantum electrodynamics (QED), the determination of fundamental constants and nuclear charge radii. The sharpest transition in atomic hydrogen occurs between the metastable 2S state and the 1S ground state ...
Beyer, Axel, Parthey, Christian G., Kolachevsky, Nikolai, Alnis, Janis, Khabarova, K., Pohl, Randolf, Peters, E., Yost, D. C., Matveev, Arthur, Predehl, Katharina, Droste, S., Wilken, Tobias, Holzwarth, Ronald, Hänsch, Theodor W., Abgrall, Michel, Rovera, Daniele, Salomon, Christophe, Laurent, Philippe, Udem, Thomas   +18 more
openaire   +4 more sources

Laboratory‐Scale Procedure for Evaluating the Flux Efficiency on Melt Cleanliness and Tensile Properties of Recycled Aluminum Alloys

Advanced Engineering Materials, EarlyView.
A laboratory‐scale procedure is developed to evaluate the efficiency of melt‐cleaning and drossing fluxes during aluminium alloy recycling, studying their effects on melt cleanliness and tensile properties of secondary foundry alloys. This work provides a practical tool for foundries and aluminium refiners to assess the efficiency of salt fluxes in ...
Veronica Milani, Giulio Timelli
wiley   +1 more source

Effect of Intramolecular Hydrogen Bond Formation on the Abraham Model Solute Descriptors for Oxybenzone

Liquids
Solute descriptors derived from experimental solubility data for oxybenzone dissolved in 21 different organic solvents indicate that the hydrogen atom on the hydroxyl functional group forms an intramolecular hydrogen bond with the lone electron pair on ...
Jocelyn Chen, Audrey Chen, Yixuan Yang, William E. Acree   +3 more
doaj   +1 more source

(E)-2-(4-Nitrobenzylideneamino)benzamide

Acta Crystallographica Section E, 2009
The title compound, C14H11N3O3, adopts an E conformation, with a dihedral angle of 41.8 (1) ° between the mean planes of the two benzene rings. One of the amino H atoms forms an intramolecular hydrogen bond with the amide N atom, while
Shu-Liang Wang, Ke Yang, Xiang-Shan Wang, Shu-Jiang Tu   +3 more
doaj   +1 more source

A new way to explain the 511 keV signal from the center of the Galaxy and its possible consequences

, 2018
The first gamma-ray line originating from outside the solar system that was ever detected is the 511 keV emission from the center of our Galaxy. The accepted explanation of this signal is the annihilation of electrons and positrons.
Va'vra, J.
core  

Improving Surface Quality of Titanium Electrodeposition from a Deep Eutectic Solvent with Organic and Inorganic Additives

Advanced Engineering Materials, EarlyView.
Herein, the electroplating of titanium from an organic solvent, ethaline, is shown. Polymer additives are shown to smooth the roughness of the film, and small molecule additives are shown to produce a near‐mirror finish to the deposited metal. Titanium electroreduction is desired for a variety of medical, electronic, and bonding applications but has ...
Steven Livers, Christopher Chancellor, Katarzyna Grubel, Diana Horangic, Riah Burnett, Bailey Byrd, Christina Arendt, Lance Hubbard   +7 more
wiley   +1 more source

2-Phenyl-2-(pyridin-2-yl)hexahydropyrimidine

Acta Crystallographica Section E, 2010
The title compound, C15H17N3, was prepared by reaction of benzoylpyridine and hexahydropyrimidine. The 1,3-diazinane ring adopts a chair conformation with one N—H group axial and the other equatorial.
Naleen B. Jayaratna, Richard E. Norman
doaj   +1 more source