Featured Research

from universities, journals, and other organizations

Chemists develop single molecule sieves to separate complex molecular mixtures

Date:
February 17, 2013
Source:
University of Liverpool
Summary:
Chemists have created a new technique that could be used in industry to separate complex organic chemical mixtures.

Professor Cooper: “The holes in these cage molecules act like a shape-selective molecular sieve, rather like a children’s wooden shape puzzle.”
Credit: Image courtesy of University of Liverpool

Chemists at the University of Liverpool have created a new technique that could be used in industry to separate complex organic chemical mixtures.

Related Articles


Chemical feedstocks containing benzene are used extensively in industry to create modern materials and polymers. Their use relies heavily on distillation techniques which separate complex mixtures into more simple molecules used as building blocks to develop drugs, plastics and new materials. These distillation techniques can be expensive and involve large amounts of energy for hard-to-separate mixtures.

A team of researchers at the University's Department of Chemistry, led by Professor Andrew Cooper, have created organic molecular crystals that are able to separate important organic aromatic molecules by their molecular shape.

Professor Cooper said: "We were able to demonstrate this new molecule separation technique by synthesising porous organic cage molecules that are highly similar in shape to the molecules that need to be separated.

"The holes in these cage molecules act like a shape-selective molecular sieve, rather like a children's wooden shape puzzle. Using computer simulations we revealed how the porous cages separate the aromatic feedstocks and show that, unlike a wooden shape puzzle, the mechanism actually involves flexibility and motion in the cage sieves. "

The ability to separate complex molecules using less energy will be important in the future for current petrochemical and chemical industries and for producing any next-generation sustainable bio-derived chemicals.


Story Source:

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


Journal Reference:

  1. Tamoghna Mitra, Kim E. Jelfs, Marc Schmidtmann, Adham Ahmed, Samantha Y. Chong, Dave J. Adams, Andrew I. Cooper. Molecular shape sorting using molecular organic cages. Nature Chemistry, 2013; DOI: 10.1038/nchem.1550

Cite This Page:

University of Liverpool. "Chemists develop single molecule sieves to separate complex molecular mixtures." ScienceDaily. ScienceDaily, 17 February 2013. <www.sciencedaily.com/releases/2013/02/130217084906.htm>.
University of Liverpool. (2013, February 17). Chemists develop single molecule sieves to separate complex molecular mixtures. ScienceDaily. Retrieved October 25, 2014 from www.sciencedaily.com/releases/2013/02/130217084906.htm
University of Liverpool. "Chemists develop single molecule sieves to separate complex molecular mixtures." ScienceDaily. www.sciencedaily.com/releases/2013/02/130217084906.htm (accessed October 25, 2014).

Share This



More Matter & Energy News

Saturday, October 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

IKEA Desk Converts From Standing to Sitting With One Button

IKEA Desk Converts From Standing to Sitting With One Button

Buzz60 (Oct. 24, 2014) IKEA is out with a new convertible desk that can convert from a sitting desk to a standing one with just the push of a button. Jen Markham explains. Video provided by Buzz60
Powered by NewsLook.com
Ebola Protective Suits Being Made in China

Ebola Protective Suits Being Made in China

AFP (Oct. 24, 2014) A factory in China is busy making Ebola protective suits for healthcare workers and others fighting the spread of the virus. Duration: 00:38 Video provided by AFP
Powered by NewsLook.com
Real-Life Transformer Robot Walks, Then Folds Into a Car

Real-Life Transformer Robot Walks, Then Folds Into a Car

Buzz60 (Oct. 24, 2014) Brave Robotics and Asratec teamed with original Transformers toy company Tomy to create a functional 5-foot-tall humanoid robot that can march and fold itself into a 3-foot-long sports car. Jen Markham has the story. Video provided by Buzz60
Powered by NewsLook.com
Police Testing New Gunfire Tracking Technology

Police Testing New Gunfire Tracking Technology

AP (Oct. 24, 2014) A California-based startup has designed new law enforcement technology that aims to automatically alert dispatch when an officer's gun is unholstered and fired. Two law enforcement agencies are currently testing the technology. (Oct. 24) Video provided by AP
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