How Metal Nuclearity Impacts Electrocatalytic H Production in Thiocarbohydrazone-Based Complexes
Inorganics, ISSN: 2304-6740, Vol: 11, Issue: 4
2023
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Most Recent News
Research from Aix-Marseille University Provides New Study Findings on Inorganic Chemistry (How Metal Nuclearity Impacts Electrocatalytic H [ [2] ] Production in Thiocarbohydrazone-Based Complexes)
2023 MAY 15 (NewsRx) -- By a News Reporter-Staff News Editor at Chemicals & Chemistry Daily Daily -- Current study results on inorganic chemistry have
Article Description
Thiocarbohydrazone-based catalysts feature ligands that are potentially electrochemically active. From the synthesis point of view, these ligands can be easily tailored, opening multiple strategies for optimization, such as using different substituent groups or metal substitution. In this work, we show the possibility of a new strategy, involving the nuclearity of the system, meaning the number of metal centers. We report the synthesis and characterization of a trinuclear nickel-thiocarbohydrazone complex displaying an improved turnover rate compared with its mononuclear counterpart. We use DFT calculations to show that the mechanism involved is metal-centered, unlike the metal-assisted ligand-centered mechanism found in the mononuclear complex. Finally, we show that two possible mechanisms can be assigned to this catalyst, both involving an initial double reduction of the system.
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