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Simulating Intramolecular Charge Migration on Attosecond timescales

The ability to control the movement of charge is at the heart of chemistry. With the birth of intense, ultrashort attosecond laser pulses, electronic wave packets can be created in molecules which induce nuclear motion. As a resul... ver más

31/07/2022

UNIVERSITY COLLEGE...

213K€

Presupuesto del proyecto: 213K€

Líder del proyecto

UNIVERSITY COLLEGE LONDON No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Fecha límite participación Sin fecha límite de participación.

Financiación concedida El organismo H2020 notifico la concesión del proyecto el día 2022-07-31

MSCA-IF-2019: Individual Fellowships

I+D

Cerrada hace 5 años

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Información adicional privada

No hay información privada compartida para este proyecto. Habla con el coordinador.

1 Participantes

UNIVERSITY COLLEGE LONDON

212.93K€ | Lider

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Duración del proyecto: 28 meses Fecha Inicio: 2020-03-25
Fecha Fin: 2022-07-31

Líder del proyecto

UNIVERSITY COLLEGE LONDON No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Presupuesto del proyecto 213K€

Fecha límite de participación Sin fecha límite de participación.

Descripción del proyecto The ability to control the movement of charge is at the heart of chemistry. With the birth of intense, ultrashort attosecond laser pulses, electronic wave packets can be created in molecules which induce nuclear motion. As a result, the observation and control of electron motion at the atomic level is becoming feasible, leading to the field of attochemistry. In this project, we will develop and use theoretical tools to investigate the potential of these modern light sources to probe and direct this charge migration induced molecular dynamics in chemically important polyatomic molecules. These elementary aspects of laser-matter interactions are governed by quantum mechanics and therefore we will solve the time-dependent Schrödinger equation using state-of-the-art quantum dynamics simulations to address the phenomenon. This will lead to a complete understanding of the underlying mechanism behind the coupled electron-nuclear motion and through a detailed comparison with other available semi-classical studies, a clear indication of their success or failure to theoretically describe such processes will be obtained. Following this, laser control schemes will be designed to enhance desired product yields from these chemical reactions. The key issues that we will address are: (i) Laser induced ultrafast charge migration in benzene and substituents, (ii) Charge migration in the photoinduced ring opening of cyclohexadiene to hexatriene, (iii) Coherent control of coupled electron-nuclear dynamics with attosecond laser pulses. Benzene is the building block of polycyclic aromatic hydrocarbons and the cyclohexadiene to hexatriene reaction plays an important role in the biosynthesis of vitamin D3 from its provitamin dehydrocholesterol. Thereby, each of these objectives has potential societal value and will increase the understanding of the molecular basis of these chemical/biological processes.

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