New properties of sulfur atom discovered

December 14, 2018

A study led by Prof. Juan Casado, from the Department of Physical Chemistry of the UMA, in collaboration with the University of Oregon (U.S.A.) and Osaka (Japan), which has proved that lone pair electrons that characterize sulfur atom can also repel unpaired or itinerant electrons that are present in their environment.

"This study evidences that the conventional conciliatory behavior of sulfur -electron donor- also shows a hostile side", explains the researcher from the UMA, who adds that these findings demonstrate that sulfur, under some circumstances, can also cause "magnetic repulsion".

Organic diradicals

According to this expert, the diradical molecules (a molecular species with two electrons occupying two "degenerated" molecular orbitals) used in the study -more stable, functional and durable- are critically important in chemistry, as well as in other sciences. For instance, they are associated with the chemical reactivity in combustion or are present in the persistence cycles of tropospheric ozone, and, also, in the future, they will be part of "magnetic plastic".
-end-
The results of this research have been published in the magazine "Nature Chemistry". In October, the Professor of Physical Chemistry of the UMA Juan Casado Cordón, its main author, was awarded the "Seniors Research Excellence Award" by the Spanish Royal Society of Chemistry (RSEQ) in recognition of his outstanding scientific activity in the last ten years.

REFERENCES:

Justin J. Dressler, Mitsuru Teraoka, Guzmán L. Espejo, Ryohei Kishi, Shota Takamuku, Carlos J. Gómez-García, Lev N. Zakharov, Masayoshi Nakano, Juan Casado & Michael M. Haley. "Thiophene and its sulfur inhibit indenoindenodibenzothiophene diradicals from low-energy lying thermal triplets". Nature, septiembre de 2018.

University of Málaga

Related Chemistry Articles from Brightsurf:

Searching for the chemistry of life
In the search for the chemical origins of life, researchers have found a possible alternative path for the emergence of the characteristic DNA pattern: According to the experiments, the characteristic DNA base pairs can form by dry heating, without water or other solvents.

Sustainable chemistry at the quantum level
University of Pittsburgh Associate Professor John A. Keith is using new quantum chemistry computing procedures to categorize hypothetical electrocatalysts that are ''too slow'' or ''too expensive'', far more thoroughly and quickly than was considered possible a few years ago.

Can ionic liquids transform chemistry?
Table salt is a commonplace ingredient in the kitchen, but a different kind of salt is at the forefront of chemistry innovation.

Principles for a green chemistry future
A team led by researchers from the Yale School of Forestry & Environmental Studies recently authored a paper featured in Science that outlines how green chemistry is essential for a sustainable future.

Sugar changes the chemistry of your brain
The idea of food addiction is a very controversial topic among scientists.

Reflecting on the year in chemistry
A lot can happen in a year, especially when it comes to science.

Better chemistry through tiny antennae
A research team at The University of Tokyo has developed a new method for actively controlling the breaking of chemical bonds by shining infrared lasers on tiny antennae.

Chemistry in motion
For the first time, researchers have managed to view previously inaccessible details of certain chemical processes.

Researchers enrich silver chemistry
Researchers from Russia and Saudi Arabia have proposed an efficient method for obtaining fundamental data necessary for understanding chemical and physical processes involving substances in the gaseous state.

The chemistry behind kibble (video)
Have you ever thought about how strange it is that dogs eat these dry, weird-smelling bits of food for their entire lives and never get sick of them?

Read More: Chemistry News and Chemistry Current Events
Brightsurf.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.