Featured Research

from universities, journals, and other organizations

For The First Time, A Five-fold Bond

Date:
October 14, 2005
Source:
University of California - Davis
Summary:
Chemists at UC Davis have made the first stable compound with a five-fold bond between two metal atoms. The work with chromium could give researchers new insights into the nature of chemical bonding.

Muchof chemistry is about understanding how bonds are made and broken. Formost of the history of chemistry, only single, double or triple bondswere known. Multiple bonds are particularly important in carbonchemistry, but only certain metals are theoretically capable of morethan triple bonds, said Philip Power, professor of chemistry at UCDavis and senior author on the paper.

The dark red crystals weresynthesized by Tailuan (Peter) Nguyen, a graduate student in Power'slaboratory. The chromium-based compound is stable at room temperaturebut decomposes in the presence of water, and spontaneously ignites whenexposed to air.

To make the compound, Nguyen and Power attachedlarge carbon-based molecules to chromium atoms, constraining how theycould behave. They were then able to coax the chromium atoms to bondwith each other. The multiple bonding was confirmed by X-raycrystallography and magnetic measurements.

As far as we know, no comparable compound exists in nature, Power said.

Inaddition to Nguyen and Power, other authors on the paper werepostdoctoral researcher Andrew Sutton, theorist Marcin Brynda andcrystallographer James Fettinger at the UC Davis chemistry department;and Gary Long, professor of chemistry at the University of Missouri,Rolla. Peter Klavins and Long Pham at the UC Davis physics departmentcarried out magnetic measurements for the study.

The work is published online in Science Express and will appear in the print version of the journal Science later this year.


Story Source:

The above story is based on materials provided by University of California - Davis. Note: Materials may be edited for content and length.


Cite This Page:

University of California - Davis. "For The First Time, A Five-fold Bond." ScienceDaily. ScienceDaily, 14 October 2005. <www.sciencedaily.com/releases/2005/10/051014072049.htm>.
University of California - Davis. (2005, October 14). For The First Time, A Five-fold Bond. ScienceDaily. Retrieved October 21, 2014 from www.sciencedaily.com/releases/2005/10/051014072049.htm
University of California - Davis. "For The First Time, A Five-fold Bond." ScienceDaily. www.sciencedaily.com/releases/2005/10/051014072049.htm (accessed October 21, 2014).

Share This



More Matter & Energy News

Tuesday, October 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Gulfstream G500, G600 Unveiling

Gulfstream G500, G600 Unveiling

Flying (Oct. 20, 2014) Watch Gulfstream's public launch of the G500 and G600 at their headquarters in Savannah, Ga., along with a surprise unveiling of the G500, which taxied up under its own power. Video provided by Flying
Powered by NewsLook.com
Japanese Scientists Unveil Floating 3D Projection

Japanese Scientists Unveil Floating 3D Projection

Reuters - Innovations Video Online (Oct. 20, 2014) Scientists in Tokyo have demonstrated what they say is the world's first 3D projection that floats in mid air. A laser that fires a pulse up to a thousand times a second superheats molecules in the air, creating a spark which can be guided to certain points in the air to shape what the human eye perceives as an image. Matthew Stock reports. Video provided by Reuters
Powered by NewsLook.com
Hey, Doc! Sewage, Beer and Food Scraps Can Power Chevrolet’s Bi-Fuel Impala

Hey, Doc! Sewage, Beer and Food Scraps Can Power Chevrolet’s Bi-Fuel Impala

3BL Media (Oct. 20, 2014) Hey, Doc! Sewage, Beer and Food Scraps Can Power Chevrolet’s Bi-fuel Impala Video provided by 3BL
Powered by NewsLook.com
What We Know About Microsoft's Rumored Smartwatch

What We Know About Microsoft's Rumored Smartwatch

Newsy (Oct. 20, 2014) Microsoft will reportedly release a smartwatch that works across different mobile platforms, has a two-day battery life and tracks heart rate. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins