#Researchers discover C-H bond activation reactions at low temperature by photo-induced means
“#Researchers discover C-H bond activation reactions at low temperature by photo-induced means”
The C-H bond is very important in organic chemistry. Chemical reactions related to the breaking and further synthesis of the C-H bond require high activation energy and poor selectivity. Therefore, it’s important to understand the reaction mechanism of the C-H bond.
Recently, a research team led by Prof. Yang Xueming and Prof. Ma Zhibo from the Dalian Institute of Chemical Physics (DICP) of the Chinese Academy of Sciences (CAS), in collaboration with Prof. Pan Minghu from the Huazhong University of Science and Technology, discovered the C-H bond breaking reaction catalyzed by low-temperature photocatalysis on the surface of titanium oxide, and explained the reaction mechanism at the single molecule level.
The results were published in the Journal of Physical Chemistry Letters on Nov. 10.
The scientists used the rutile 110 surface of titanium oxide as the model system and the C-H bond molecule ethylbenzene as the model molecule.
They found that ethylbenzene could be induced to remove hydrogen at low temperature (77K) only by photoinduced reaction. They also experimentally observed the images of the reaction steps by in-situ tracking single molecules.
Prof. Pan’s team provided support for the theoretical interpretation of the image and confirmed the reaction process.
Scientists propose redox mechanism for water-gas shift reaction
Haiping Lin et al. In Situ Observation of Stepwise C–H Bond Scission: Deciphering the Catalytic Selectivity of Ethylbenzene-to-Styrene Conversion on TiO2, The Journal of Physical Chemistry Letters (2020). DOI: 10.1021/acs.jpclett.0c02729
Citation:
Researchers discover C-H bond activation reactions at low temperature by photo-induced means (2020, December 29)
retrieved 29 December 2020
from https://phys.org/news/2020-12-c-h-bond-reactions-temperature-photo-induced.html
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.
If you liked the article, do not forget to share it with your friends. Follow us on Google News too, click on the star and choose us from your favorites.
For forums sites go to Forum.BuradaBiliyorum.Com
If you want to read more Like this articles, you can visit our Science category.