H+D2 reaction dynamics. Determination of the product state distributions at a collision energy of 1.3 eV

1984 ◽  
Vol 80 (9) ◽  
pp. 4142-4156 ◽  
Author(s):  
Ernesto E. Marinero ◽  
Charles T. Rettner ◽  
R. N. Zare
2000 ◽  
Vol 104 (3) ◽  
pp. 521-529 ◽  
Author(s):  
Miguel González ◽  
María P. Puyuelo ◽  
Jordi Hernando ◽  
R. Sayós ◽  
Pedro A. Enríquez ◽  
...  

2019 ◽  
Vol 20 (6) ◽  
pp. 1401 ◽  
Author(s):  
Marius Schmidt

The focus of structural biology is shifting from the determination of static structures to the investigation of dynamical aspects of macromolecular function. With time-resolved macromolecular crystallography (TRX), intermediates that form and decay during the macromolecular reaction can be investigated, as well as their reaction dynamics. Time-resolved crystallographic methods were initially developed at synchrotrons. However, about a decade ago, extremely brilliant, femtosecond-pulsed X-ray sources, the free electron lasers for hard X-rays, became available to a wider community. TRX is now possible with femtosecond temporal resolution. This review provides an overview of methodological aspects of TRX, and at the same time, aims to outline the frontiers of this method at modern pulsed X-ray sources.


2014 ◽  
Vol 16 (31) ◽  
pp. 16805-16814 ◽  
Author(s):  
Beni B. Dangi ◽  
Tao Yang ◽  
Ralf I. Kaiser ◽  
Alexander M. Mebel

Reaction dynamics and energetics of 4-methylphenyl radical with isoprene are reported under single collision condition at collision energy of 58 kJ mol−1 by exploiting the crossed molecular beam technique and electronic structure calculations.


1989 ◽  
Vol 156 (1) ◽  
pp. 7-13 ◽  
Author(s):  
Michael J. Bronikowski ◽  
Rong Zhang ◽  
David J. Rakestraw ◽  
Richard N. Zare

2021 ◽  
Author(s):  
Zetan Cao ◽  
Jia He ◽  
Zhiwen Liu ◽  
Haoran Zhang ◽  
Bin Chen

Abstract Chirality involved reactions enable to probe features in the fields of asymmetric synthesis and catalysis, which allow to gain insight into the fundamental mechanisms of topochemically controlled reactions. However, in situ observation of the chirality-associated reaction dynamics with simultaneous structural determination of new features has been lacking. Here, we report the direct visualization of the electron-beam-stimulated reaction dynamics of HgS nanostructures with chiral and achiral morphologies simultaneously in both real and reciprocal space. Under the electron-beam excitation of HgS nanostructures, the formation and evaporation dynamics of Hg nanodroplets were vividly pictured while the reciprocal space imaging revealed the structural transformation from monocrystalline to polycrystalline. Such induced changes were size-dependent, which were slowed down when involving the chirality in the nanostructures. The finding offers a fundamental understanding of topochemically controlled reaction mechanisms and holds promise of tuning asymmetric synthesis for catalysis related applications.


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