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Chemistry By Design, 535 synthetic sequences

di Emanuela Clavarino
Pubblicato il 26/07/2012Read time: 1 min
Chemistry

Chemistry By Design is an interactive virtual flashcard that allows everyone to test their skills using known synthetic sequences. The goal is to display the reagents, starting materials and products for every single step used in constructing a natural product or pharmaceutical.
To better serve the community everyone is called to submit a synthetic sequence not yet included in the app. The app is available online or for iOs and Android devices.
Chemistry By Design is created by Professor Jon T. Njardarson (Department of Chemistry and Biochemistry, University of Arizona). 

Furthermore about Chemistry, Marie Curie Actions sometime ago presented a funny video: "Chemicals having a party".

[video:http://www.youtube.com/watch?v=HDw4gk5pYl8]

Preview of the app:

Chemistry By Design

Chemistry By Design

Chemistry By Design

Chemistry By Design


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Discovered a New Carbon-Carbon Chemical Bond

di Chiara D'Errico
Pubblicato il 16/10/2024

A group of researchers from Hokkaido University has provided the first experimental evidence of the existence of a new type of chemical bond: the single-electron covalent bond, theorized by Linus Pauling in 1931 but never verified until now. Using derivatives of hexaarylethane (HPE), the scientists were able to stabilize this unusual bond between two carbon atoms and study it with spectroscopic techniques and X-ray diffraction. This discovery opens new perspectives in understanding bond chemistry and could lead to the development of new materials with innovative applications.

In the cover image: study of the sigma bond with X-ray diffraction. Credits: Yusuke Ishigaki

Chemistry

After nearly a year of review, on September 25, a study was published in Nature that has sparked a lot of discussion, especially among chemists. A group of researchers from Hokkaido University synthesized a molecule that experimentally demonstrated the existence of a new type of chemical bond, something that does not happen very often.