학술논문
On the energetics of binding and hydride exchange in the RuH2 (H2 )2 [P(C5 H9 )3 )]2 complex as revealed by inelastic neutron scattering and DFT studies.
Document Type
Article
Author
Source
Subject
*INELASTIC neutron scattering
*HYDRIDES
*QUANTUM tunneling
*QUASI-elastic scattering
*DENSITY functional theory
*LOW temperatures
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Language
ISSN
1144-0546
Abstract
We apply high resolution inelastic neutron scattering techniques, at cryogenic temperatures and up to near ambient temperatures, to study the microscopic dynamics of dihydrogen molecules, chemically bound in a RuH2(H2)2[P(C5H9)3)]2 high-hydrogen content complex. At the lowest temperatures we first observe the quantum tunneling spectrum of the ground ortho-para hydrogen states. At slightly elevated and near ambient temperatures we observe the corresponding quasi-elastic scattering due to rapid proton exchange between the dihydrogen ligands and the hydrides. The overall energetics of the hydrides and the possible reaction paths for proton exchange are modelled with the use of hybrid density functional theory calculations. [ABSTRACT FROM AUTHOR]