Charged particles in aqueous solutions are always surrounded by a shell of water molecules. However, much is still unknown about the nature of this so-called hydration shell. Using terahertz ...

In the chemistry of interstellar clouds, the three-atomic hydrogen ion plays a key role. In these reactions, also simple organic molecules form. Although H3+ is the simplest polyatomic molecular ion, ...

(Phys.org)—A team of researchers at Harvard University has successfully cooled a three-atom molecule down to near absolute zero for the first time. In their paper published in Physical Review Letters, ...

Red light stop: The experiment uses multiple frequencies of light to cool the CaOH atoms to a fraction of a degree above absolute zero. (Courtesy: John Doyle) Physicists in the US have created ...

Proceedings of the Royal Society of London. Series A, Mathematical and Physical Sciences, Vol. 264, No. 1318 (Nov. 21, 1961), pp. 379-391 (13 pages) The Hellmann-Feynman theorem is used to examine the ...

Proceedings of the Royal Society of London. Series A, Mathematical and Physical Sciences Dispersion of sound has been compared for ethylene and tetradeutero-ethylene. Relaxation times of 0.26 and 0.14 ...