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Latest Cluster chemistry Stories

2011-09-22 08:20:01

Tokyo, Sept 22, 2011 - (JCN Newswire) - A study published by researchers at the RIKEN Advanced Science Institute (ASI) has shed first-ever light on a class of heterometallic molecular structures whose unique features point the way to breakthroughs in the development of lightweight fuel cell technology. The structures contain a previously-unexplored combination of rare-earth and d-transition metals ideally suited to the compact storage of hydrogen.The most abundant element in the universe,...

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...

2010-05-27 15:16:18

Researchers at the Department of Chemistry and Nanoscience Center (NSC) of the University of Jyväskylä (Dr Olga Lopez-Acevedo and Professor Hannu Häkkinen) have resolved the structural, electronic and optical properties of a chiral gold nanocluster that remained a mystery for ten years. The theoretical structure was confirmed via comparison to experimental results obtained by X-ray diffraction from powder samples of the pure cluster material. The theoretical work was done in...

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2009-12-29 08:49:40

Research gives new perspective on periodic table Transforming lead into gold is an impossible feat, but a similar type of "alchemy" is not only possible, but cost-effective too. Three Penn State researchers have shown that certain combinations of elemental atoms have electronic signatures that mimic the electronic signatures of other elements. According to the team's leader A. Welford Castleman Jr., Eberly Distinguished Chair in Science and Evan Pugh Professor in the Departments of Chemistry...

2009-12-28 20:48:46

Splitting fluorescent protein helps image clusters in live cells Half a protein is better than none, and in this case, it's way better than a whole one. A Rice University lab has discovered that dividing a particular fluorescent protein and using it as a tag is handy for analyzing the workings of live cells, particularly in the way they employ iron-sulfur clusters. Iron and sulfur in just the right amounts are critical to good health. They're in the food people eat and vitamins they take...

2009-11-09 16:16:09

Researchers from Lehigh and Rice universities combine electron microscopy and spectroscopy techniques to shed new light on a tungstated zirconia catalyst. The catalytic processes that facilitate the production of many chemicals and fuels could become much more environmentally friendly thanks to a breakthrough achieved by researchers from Lehigh and Rice Universities. In an article published Nov. 8 by the journal Nature Chemistry, the researchers report a novel electron microscopy imaging...

2009-08-31 11:35:00

Small, smaller, "nano" data storage! Interest is growing in the use of metallofullerenes "“ carbon "cages" with embedded metallic compounds "“ as materials for miniature data storage devices. Researchers at Empa have discovered that metallofullerenes are capable of forming ordered supramolecular structures with different orientations. By specifically manipulating these orientations it might be possible to  store and subsequently read out information. Carbon exists in the form...

2009-08-11 14:06:52

Scientists have long suspected that Alzheimer's disease (AD) is caused by a small protein called the amyloid ÃŽ²-protein (AÃŽ²). This protein clumps or binds to itself, eventually changing chemically to create brain protein deposits (plaques) that are characteristic of AD. However, recent studies have suggested that it is not the plaques that cause AD but rather these small, grape-like clusters of AÃŽ². These clusters vary in size, and the...

2009-06-17 16:01:42

U.S. scientists have discovered a magnetic superatom that might one day be used to create molecular electronic devices for future computers. Virginia Commonwealth University researchers said the superatom consists of a stable cluster of atoms that can mimic different elements of the periodic table. The cluster, consisting of one vanadium and eight cesium atoms, acts as a tiny magnet that can mimic a single manganese atom in magnetic strength, while preferentially allowing electrons of...

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2009-06-15 14:45:00

A team of Virginia Commonwealth University scientists has discovered a "Ëœmagnetic superatom' "“ a stable cluster of atoms that can mimic different elements of the periodic table "“ that one day may be used to create molecular electronic devices for the next generation of faster computers with larger memory storage.The newly discovered cluster, consisting of one vanadium and eight cesium atoms, acts like a tiny magnet that can mimic a single manganese atom in magnetic...


Word of the Day
cenobite
  • One of a religious order living in a convent or in community; a monk: opposed to anchoret or hermit (one who lives in solitude).
  • A social bee.
This word comes from the Latin 'coenobium,' convent, which comes from the Greek 'koinobios,' living in community.
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