Charge migration and charge transfer in molecular systems


Date

2017-11

Publication Type

Review Article

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yes

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Abstract

The transfer of charge at the molecular level plays a fundamental role in many areas of chemistry, physics, biology and materials science. Today, more than 60 years after the seminal work of R. A. Marcus, charge transfer is still a very active field of research. An important recent impetus comes from the ability to resolve ever faster temporal events, down to the attosecond time scale. Such a high temporal resolution now offers the possibility to unravel the most elementary quantum dynamics of both electrons and nuclei that participate in the complex process of charge transfer. This review covers recent research that addresses the following questions. Can we reconstruct the migration of charge across a molecule on the atomic length and electronic time scales? Can we use strong laser fields to control charge migration? Can we temporally resolve and understand intramolecular charge transfer in dissociative ionization of small molecules, in transition-metal complexes and in conjugated polymers? Can we tailor molecular systems towards specific charge-transfer processes? What are the time scales of the elementary steps of charge transfer in liquids and nanoparticles? Important new insights into each of these topics, obtained from state-of-the-art ultrafast spectroscopy and/or theoretical methods, are summarized in this review.

Publication status

published

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Volume

4 (6)

Pages / Article No.

61508

Publisher

American Institute of Physics

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Organisational unit

03888 - Wörner, Hans Jakob / Wörner, Hans Jakob check_circle
03371 - Keller, Ursula (emeritus) / Keller, Ursula (emeritus) check_circle
03746 - Van Bokhoven, Jeroen A. / Van Bokhoven, Jeroen A. check_circle

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