Latest Hydronium Stories

2013-07-23 15:36:21

New model sheds further light on the Grotthuss mechanism Protons, as positively charged hydrogen ions, move very rapidly in water from one water molecule to the next, which is why the conductivity of water is relatively high. The principle of proton conduction in water has been known for 200 years and is named the Grotthuss mechanism after its discoverer, Theodor Grotthuss. It is based on the assumption that it is not that a single specific proton moving from one molecule to another;...

Molecular Matter Is The Same As 7 Billion Years Ago
2012-12-13 14:29:50

Lee Rannals for redOrbit.com - Your Universe Online Researchers reported today in the journal Science Express that the ratio of the proton's mass to that of the electron has hardly changed over the past seven billion years. This fundamental constant of nature has changed by a maximum of one hundred thousandth of a percent over cosmic history. Scientists from VU University Amsterdam and the Max-Planck-Institut für Radioastronomie (MPIfR) used the Effelsberg 100-m radio...

2011-08-08 12:31:52

Los Alamos team sees unprecedented proof of ion's role in enzymatic process A Los Alamos National Laboratory research team has harnessed neutrons to view for the first time the critical role that an elusive molecule plays in certain biological reactions. The effort could aid in treatment of peptic ulcers or acid reflux disease, or allow for more efficient conversion of woody waste into transportation fuels. In a paper appearing this week in Angewandte Chemie International Edition, Los Alamos...

2010-08-24 17:15:16

Mapping the structure of protonated water clusters Water molecules are continuously forming short-lived networks called clusters. These can in turn bind positively charged protons, and such clusters can provide active functional groups in proteins. Using infrared spectroscopy, it is possible to determine the bond strengths, geometrical structures and chemical properties of protonated water clusters. In order to measure the spectrum of molecular vibrations in clusters it is, however, necessary...

2005-07-16 16:32:39

New Haven, Conn. -- Free protons from acids associate with 1, 2 or 3 molecules of water and the structures can be identified by unique infrared laser spectrum signatures, according to a report in Science by Yale professor of chemistry Mark A. Johnson and his collaborators at Yale, the University of Pittsburgh and the University of Georgia. Acids yielding free protons are common in biological and chemical systems and the measurement of pH to determine acidity of an aqueous solution is a...

Word of the Day
  • A spider.
  • Figuratively, a peevish, testy, ill-natured person.
'Attercop' comes from the Old English 'atorcoppe,' where 'atter' means 'poison, venom' and‎ 'cop' means 'spider.' 'Coppa' is a derivative of 'cop,' top, summit, round head, or 'copp,' cup, vessel, which refers to 'the supposed venomous properties of spiders,' says the OED. 'Copp' is still found in the word 'cobweb.'