We have located links that may give you full text access.
Termination of the W(2)O(y) (-)+H(2)O/D(2)O-->W(2)O(y+1) (-)+H(2)/D(2) sequential oxidation reaction: An exploration of kinetic versus thermodynamic effects.
Journal of Chemical Physics 2009 October 15
Several mechanisms proposed and calculated for the sequential oxidation of tungsten suboxide clusters by H(2)O/D(2)O [Mayhall et al., J. Chem. Phys. 131, 144302 (2009)] are evaluated using anion photoelectron spectroscopy of an apparent intermediate, W(2)O(6)D(2) (-). The spectrum of W(2)O(6)D(2) (-) is consistent with the W(2)O(5) (-)+D(2)O-->W(2)O(6) (-)+D(2) intermediate in which the initial water addition involves the interaction of the oxygen from D(2)O with a tungsten atom, approaching from a direction with the least repulsion from the W(2)O(5) (-) oxygen atoms, coupled with the interaction between a deuterium with a tungsten-tungsten bridging oxygen on the cluster. The presence of W(2)O(6)H(2) (-) and W(2)O(6)D(2) (-) suggests that there is insufficient internal energy in the complex to surmount the barrier for rearrangement required for tungsten hydride and hydroxide formation necessary for H(2) or D(2) evolution, which was calculated to be energetically favorable. The quality of the calculations is verified by direct comparison between experimental photoelectron spectra of W(2)O(5) (-) and W(2)O(6) (-) and spectral simulations generated from the lowest energy structures calculated for W(2)O(5) (-), W(2)O(6) (-) and their corresponding neutrals. The results shed light on the importance of repulsion on the pathway a reaction follows under room temperature conditions.
Full text links
Trending Papers
A Personalized Approach to the Management of Congestion in Acute Heart Failure.Heart International 2023
Potential Mechanisms of the Protective Effects of the Cardiometabolic Drugs Type-2 Sodium-Glucose Transporter Inhibitors and Glucagon-like Peptide-1 Receptor Agonists in Heart Failure.International Journal of Molecular Sciences 2024 Februrary 21
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app
All material on this website is protected by copyright, Copyright © 1994-2024 by WebMD LLC.
This website also contains material copyrighted by 3rd parties.
By using this service, you agree to our terms of use and privacy policy.
Your Privacy Choices
You can now claim free CME credits for this literature searchClaim now
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app