Probing the Nature of Surface Hydrides by Deuterium Quadrupolar Parameters: A Case Study on Silica-Supported Zirconium Hydrides

IF 1.5 4区 化学 Q3 CHEMISTRY, MULTIDISCIPLINARY Helvetica Chimica Acta Pub Date : 2023-11-23 DOI:10.1002/hlca.202300173
Scott R. Docherty, Philipp Schärz, Domenico Gioffrè, Alexander V. Yakimov, Christophe Copéret
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Abstract

Supported metal hydrides are key reactive intermediates in various catalytic processes, such as hydrogenation and dehydrogenation, but are often challenging to characterize spectroscopically. Here, deuterium solid state nuclear magnetic resonance spectroscopy is used to understand the structure of the corresponding silica-supported zirconium hydrides after H/D exchange as an illustrative example of supported metal hydrides, which have been shown to display notable reactivity towards small molecules (e. g., CO2 and N2O) and to activate both C−H and C−C bonds, hence their use in to the conversion of hydrocarbons (alkanes, polyolefins etc.)

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用氘四极性参数探讨表面氢化物的性质:以二氧化硅支撑的氢化锆为例
负载型金属氢化物是各种催化过程中的关键反应中间体,如加氢和脱氢,但通常具有挑战性的光谱表征。这里,氘固态核磁共振波谱被用来了解H/D交换后相应的二氧化硅负载的锆氢化物的结构,作为负载金属氢化物的一个例子,它已经被证明对小分子(例如CO2和N2O)表现出显著的反应性,并激活C-H和C-C键,因此它们用于碳氢化合物(烷烃,聚烯烃等)的转化。
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来源期刊
Helvetica Chimica Acta
Helvetica Chimica Acta 化学-化学综合
CiteScore
3.00
自引率
0.00%
发文量
60
审稿时长
2.3 months
期刊介绍: Helvetica Chimica Acta, founded by the Swiss Chemical Society in 1917, is a monthly multidisciplinary journal dedicated to the dissemination of knowledge in all disciplines of chemistry (organic, inorganic, physical, technical, theoretical and analytical chemistry) as well as research at the interface with other sciences, where molecular aspects are key to the findings. Helvetica Chimica Acta is committed to the publication of original, high quality papers at the frontier of scientific research. All contributions will be peer reviewed with the highest possible standards and published within 3 months of receipt, with no restriction on the length of the papers and in full color.
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Cover Picture: (Helv. Chim. Acta 11/2024) The pKa of Water and the Fundamental Laws Describing Solution Equilibria: An Appeal for a Consistent Thermodynamic Pedagogy Electronic Structures of Late versus Early Transition Metal Imido Complexes from 15N-NMR Signatures Total Synthesis of Tagitinins, Goyazensolide and Related Furanoheliangolides and their Covalent Interaction with Importin-5 (IPO5) Cover Picture: (Helv. Chim. Acta 10/2024)
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