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- W3039407744 endingPage "15376" @default.
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- W3039407744 abstract "In order to assess the role of metal substrates on the thermal chemistry of adsorbed acetamidinate metalorganic compounds, we have studied the surface chemistry of copper(I)−N,N′-dimethylacetamidinate on Ni(110) using density functional theory and contrasted it with similar calculations we previously carried out on Cu(110). At low coverages, it was found that, in its most stable configuration, the molecular adsorption of copper(I)–N,N′-dimethylacetamidinate dimers occurs with the Cu atoms occupying surface hollow sites. The ligands reorient away from those metal centers, and the N atoms develop new direct bonds with surface Ni atoms. However, this configuration is not stable and decomposes by losing both ligands to the surface. In the final state, the two ligands bind via their N atoms to Ni sites one lattice space away from the sites where the Cu atoms remain, with their molecular planes perpendicular to that of the surface. This is in contrast with what happens in the case of adsorption on Cu(110), where the Cu atoms from the metalorganic complex still occupy hollow sites but where only one of the ligands breaks away and binds directly to the surface; the other remains on top of the two Cu ions. In terms of the energetics of adsorption and decomposition, the reactions on Ni(110) are much more exothermic than on Cu(110). Further analysis of the distribution of charge within the adsorbates shows a minor reduction of the Cu atoms of the dimer upon interaction with the surface; full reduction to metallic copper is complete only when both ligands have fully migrated to their new Ni surface sites." @default.
- W3039407744 created "2020-07-10" @default.
- W3039407744 creator A5011173370 @default.
- W3039407744 creator A5011552496 @default.
- W3039407744 creator A5017894428 @default.
- W3039407744 creator A5074539493 @default.
- W3039407744 date "2020-07-01" @default.
- W3039407744 modified "2023-10-10" @default.
- W3039407744 title "Density Functional Theory Study of the Adsorption and Dissociation of Copper(I) Acetamidinates on Ni(110): The Effect of the Substrate" @default.
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