Frontispiece: Combined Spectroscopic and Electrochemical Detection of a NiI⋅⋅⋅HN Bonding Interaction with Relevance to Electrocatalytic H2 Production. Issue 29 (13th July 2015)

• Record Type: Journal Article
• Authors: Kochem, Amélie; O'Hagan, Molly; Wiedner, Eric S.; van Gastel, Maurice
• Is Part Of: Chemistry. Volume 21:Issue 29(2015)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2015-07-13
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.201582962
• Languages: English
• ISSNs: 0947-6539

Abstract

<abstract abstract-type="graphical" xml:lang="en"> <title> <x xml:space="preserve">Abstract</x> </title> <p> <bold>Electrochemistry</bold> In electrocatalytic production of H₂ by [Ni(PR₂NR′₂)₂]²⁺ complexes, protonation of the Ni^I intermediate is a critical step that influences the efficiency of catalysis. In their Full Paper on <ext-link ext-link-type="doi" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink">page 10338 ff.</ext-link>, E. S. Wiedner, M. van Gastel et al. investigate this reaction step by using cyclic voltammetry and hyperfine sublevel correlation (HYSCORE) spectroscopy. These studies revealed that protonation occurs at a pendant amine that is endo to Ni^I due to formation of an intramolecular Ni^I⋅⋅⋅HN bonding interaction. Importantly, this places the proton in the ideal position for ultimate formation of a HH bond at the Ni center.<graphic position="anchor" mimetype="image" xlink:href="ark:/27927/pgj1d0p76xv" orientation="portrait" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></p> </abstract>