Navigation Links
Super atoms turn the periodic table upside down
Date:7/1/2008

Researchers at Delft University of Technology (TU Delft) in The Netherlands have developed a technique for generating atom clusters made from silver and other metals. Surprisingly enough, these so-called super atoms (clusters of 13 silver atoms, for example) behave in the same way as individual atoms and have opened up a whole new branch of chemistry. A full account can be read in the new edition of TU Delft magazine Delft Outlook.

If a silver thread is heated to around 900 degrees Celsius, it will generate vapour made up of silver atoms. The floating atoms stick to each other in groups. Small lumps of silver comprising for example 9, 13 and 55 atoms appear to be energetically stable and are therefore present in the silver mist more frequently that one might assume. Prof. Andreas Schmidt-Ott and Dr. Christian Peineke of TU Delft managed to collect these super atoms and make them suitable for more detailed chemical experiments.

Science

The underlying mechanism governing this stability in super atoms was described in Science by scientists from Virginia Commonwealth University in 2005. They had discovered metal super atoms, but from aluminium. Their aluminium clusters of 13, 23 and 37 atoms reacted in the same way as individual atoms because they comprised electrons that revolved around the atom cluster as a whole. These so-called outer layers were strikingly similar to the outer layers of elements from the periodic table.

The super atoms gave the periodic table a third dimension as it were, according to Schmidt-Ott: 'The chemical properties of the super atoms that have been identified up until now are very similar to those of elements in the periodic table, because their outer layers are much the same. However, we may yet discover super atoms with a different outer layer, giving us another set of completely new properties.'

Schmidt-Ott hopes to find atom clusters with new unique magnetic, optical or electrical properties, which would also be stable enough to create crystals or other solid forms. Potential applications include catalysts in fuel and extra-conductive crystals.

Pure

So although super atoms are nothing new, thanks to TU Delft the particles can now be collected in a very pure form and selected according to size, thereby making them suitable for chemical experiments.


'/>"/>

Contact: Roy Meijer
r.e.t.meijer@tudelft.nl
31-152-781-751
Delft University of Technology
Source:Eurekalert  

Related biology news :

1. Developing kryptonite for Superbug
2. Decoy makes sitting duck of superbugs
3. Mayo Clinic study: Ossurs collars superior in immobilization and reduction of pressure
4. Moss is a super model for feeding the hungry
5. CSIC and UAB will build the most advanced superconductor cable for electricity network
6. e-Smart(R) Technologies, Inc., Announces Next Generation Superthin Polyimide Flexible Circuit Biometric Super Smart Card(TM) card, the i am(TM) Card.
7. Positron emission tomography superior to standard evaluation tools in measuring treatment response
8. Colorado Engineering Firms Win NASA Grant to Develop Innovative Insulation for Next Generation Spacecraft - Super-Insulation May Allow Future Energy Efficient Appliances
9. e-Smart(R) Technologies Delivers Its New Super Smart Card(TM) in South Korea.
10. New research reveals shark superhighways and hotspots
11. e-SMART Technologies Continues Delivery of Its New Super SMART Card in South Korea
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Super atoms turn the periodic table upside down
(Date:12/22/2016)... SuperCom (NASDAQ:   SPCB ... e-Government, Public Safety, HealthCare, and Finance sectors announced today that Leaders ... to implement and deploy a community-based supportive services program to reduce ... , further expanding its presence in the state. ... This new program, which is expected ...
(Date:12/16/2016)... MIAMI , Dec. 16, 2016   ... intuitive Identity management products and solutions and a ... announced today that it is offering seamless, integrated ... Edam security entrance products. The solutions provide IdentyTech,s ... to secure their facilities from crime and theft. ...
(Date:12/15/2016)... 2016   WaferGen Bio-systems, Inc. (NASDAQ: ... announced today that on December 13, 2016, it received ... Nasdaq Stock Market LLC which acknowledged that, as of ... common stock had been at $1.00 or greater for ... with Listing Rule 5550(a)(2) of the Nasdaq Stock Market. ...
Breaking Biology News(10 mins):
(Date:1/24/2017)... , ... January 24, 2017 , ... ... available malaria Plasmodium falciparum culture panels with standard concentrations of histidine rich protein ... available in a range of concentrations from six different malaria strains, are intended ...
(Date:1/24/2017)... , ... January 23, 2017 , ... Oklahoma City based ... newest client for the firm’s PERFEQTA software and legacy product QC Manager 2.0. ... the dynamic team at CJBC and thrilled that they have decided to implement PERFEQTA ...
(Date:1/24/2017)... , Jan. 23, 2017 /PRNewswire/ - BioAmber Inc. (NYSE: ... into an underwriting agreement with Rodman & Renshaw, a ... as sole book running manager and representative of several underwriters, ... a firm commitment basis a minimum of 2,105,264 shares ... to purchase a minimum of 1,052,632 shares of common ...
(Date:1/23/2017)... Atlas Genetics Ltd., the ultra-rapid Point-Of-Care (POC) molecular ... raising $35 million from a syndicate including all Series C ... ... Genetics io® system has been completed with the successful CE ... 2016.  This new Series D equity issue will finance the ...
Breaking Biology Technology: