H2020Индивидуална стипендия2018–2020

VSC_CAT · Vibrational Strong Coupling for Organic Chemistry and Catalysis

„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“

Период: 2018-06-01 → 2020-05-31
Финансиране от ЕС: 185 076 €
Участници: 1
Схема: MSCA-IF-EF-ST

Линиите свързват координатора с партньорите.

Накратко на български

Взаимодействието между светлината и молекулярните вибрации се използва за промяна на химични реакции, например при отварянето на органични пръстени. Това помага да се разбере как се контролира скоростта и точността на химичните процеси чрез управление на енергията в молекулите.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

Vibrational Strong Coupling for Organic Chemistry and Catalysis

Light-matter interactions play a key role in human society, whether in the exchange of information or the development of modern technology. When such light-matter interactions become strong enough, they form hybrid light-matter states which lead to fundamental changes in material and chemical properties. A given molecular vibration of a small organic molecule in the liquid phase can be partitioned into two or more energetically distinct states by coupling to the vacuum field, a phenomenon known as vibrational strong coupling (VSC). The reactivity of organic molecules is intimately intertwined with their molecular vibrations. The ability to selectively alter the energies of specific molecular vibrations therefore has enormous consequences for chemical reactivity. The main goal of this proposal was to explore how VSC can be used to modulate the selectivity of simple organic reactions, to understand which functional groups and reaction mechanisms are most susceptible to VSC, as well as to explore the effect of VSC on catalytic reactions. Overall, the project has developed VSC as a powerful and versatile tool for molecular sciences. VSC was found to not only change the rate of reactions, but to influence their site selectivity. In particular, it has a significant effect on the stereoselectivity of electrocyclic ring opening reactions. VSC plays a critical role in molecular symmetry, which leads to a larger change in chemical reactivity than would be expected from the energy difference between the two resulting hybrid states, known as the Rabi splitting. These results encourage further study on the chemical reactions in cavities to understand how VSC alters their mechanism and chemical reactivity. During the course of this project, we started a collaboration with a large European chemical company to investigate the industrial applications of this technology.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

The ability to selectively alter the energies of specific molecular vibrations has enormous consequences for chemical reactivity. Very recently, the groups of Ebbesen (physical chemistry) and Moran (organic chemistry and catalysis) showed that the rates of simple ground state reactions of organic molecules can be modified through Vibrational Strong Coupling (VSC) of a vibrational mode involved in the transition state of the reaction. However, most aspects of the application of VSC to chemical reactions are still in their infancy and many questions remain. The aim of this proposal is to explore how VSC can be used to modulate the selectivity of simple organic reactions, to understand which functional groups and reaction mechanisms are most susceptible to VSC, as well as to explore the effect of VSC on catalysts and catalytic reactions.

Оригинален текст от CORDIS (на английски).

Участници

UNIVERSITE DE STRASBOURG · StrasbourgКоординаторФранция