Ultrafast electron diffraction: Visualizing dynamic states of matter

D Filippetto, P Musumeci, RK Li, BJ Siwick… - Reviews of Modern …, 2022 - APS
Since the discovery of electron-wave duality, electron scattering instrumentation has
developed into a powerful array of techniques for revealing the atomic structure of matter …

From a one-mode to a multi-mode understanding of conical intersection mediated ultrafast organic photochemical reactions

Y Boeije, M Olivucci - Chemical Society Reviews, 2023 - pubs.rsc.org
Over the last few decades, conical intersections (CoIns) have grown from theoretical
curiosities into common mechanistic features of photochemical reactions, whose function is …

Filming movies of attosecond charge migration in single molecules with high harmonic spectroscopy

L He, S Sun, P Lan, Y He, B Wang, P Wang… - Nature …, 2022 - nature.com
Electron migration in molecules is the progenitor of chemical reactions and biological
functions after light-matter interaction. Following this ultrafast dynamics, however, has been …

[HTML][HTML] Direct observation of ultrafast hydrogen bond strengthening in liquid water

J Yang, R Dettori, JPF Nunes, NH List, E Biasin… - Nature, 2021 - nature.com
Water is one of the most important, yet least understood, liquids in nature. Many anomalous
properties of liquid water originate from its well-connected hydrogen bond network …

Nonadiabatic dynamics simulation of the wavelength-dependent photochemistry of azobenzene excited to the nπ* and ππ* excited states

JK Yu, C Bannwarth, R Liang… - Journal of the …, 2020 - ACS Publications
Azobenzene is one of the most ubiquitous photoswitches in photochemistry and a
prototypical model for photoisomerizing systems. Despite this, its wavelength-dependent …

Revisiting the non-fluorescence of nitroaromatics: presumption versus reality

YM Poronik, B Sadowski, K Szychta… - Journal of Materials …, 2022 - pubs.rsc.org
The electronically excited singlet states of nitroaromatic compounds are often presumed to
be essentially non-fluorescent. Nonetheless, a growing number of reports in the literature …

[HTML][HTML] Few-fs resolution of a photoactive protein traversing a conical intersection

A Hosseinizadeh, N Breckwoldt, R Fung, R Sepehr… - Nature, 2021 - nature.com
The structural dynamics of a molecule are determined by the underlying potential energy
landscape. Conical intersections are funnels connecting otherwise separate potential …

[HTML][HTML] Towards understanding and controlling ultrafast dynamics in molecular photomagnets

TJ Penfold, JO Johansson, J Eng - Coordination Chemistry Reviews, 2023 - Elsevier
Manipulating magnetic materials is the cornerstone of hard drive technology. This modern
information technology era has led to an explosive increase in the rate of data generation …

Toward precise simulations of the coupled ultrafast dynamics of electrons and atomic vibrations in materials

X Tong, M Bernardi - Physical Review Research, 2021 - APS
Ultrafast spectroscopies can access the dynamics of electrons and nuclei at short
timescales, shedding light on nonequilibrium phenomena in materials. However …

Imaging conical intersection dynamics during azobenzene photoisomerization by ultrafast X-ray diffraction

D Keefer, F Aleotti, JR Rouxel… - Proceedings of the …, 2021 - National Acad Sciences
X-ray diffraction is routinely used for structure determination of stationary molecular samples.
Modern X-ray photon sources, eg, from free-electron lasers, enable us to add temporal …