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Inside Cover: Hydrogen‐Atom Tunneling Could Contribute to H 2 Formation in Space (Angew. Chem. Int. Ed. 40/2010)
Author(s) -
Goumans Theodorus P. M.,
Kästner Johannes
Publication year - 2010
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201003663
Subject(s) - hydrogen , quantum tunnelling , hydrogen atom , deuterium , benzene , cover (algebra) , atomic physics , space (punctuation) , chemistry , physics , condensed matter physics , quantum mechanics , organic chemistry , engineering , mechanical engineering , linguistics , philosophy , group (periodic table)
The role of quantum tunneling of hydrogen atoms in the formation of dihydrogen in space has been investigated. In their Communication on page 7350 ff., T.P.M. Goumans and J. Kästner use a novel implementation of harmonic quantum transition‐state theory to study the reaction rate of hydrogen atoms with benzene. This model of the rate‐limiting step of H 2 formation on carbonaceous dust grains in space shows that hydrogen reacts about two orders of magnitude faster than the heavier deuterium. Background image: NASA/JPL‐Caltech/STScI/CXC/UofA/ESA/AURA/JHU.