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Strong chemisorption of CO\(_2\) on B\(_{10}\)-B\(_{13}\) planar-type clusters
An ab initio density functional study was performed investigating the adsorption of CO\(_2\) on the neutral boron B\(_{n}\) (\(n = 10-13\)) clusters, characterized by planar and quasiplanar ground-state atomic structures. For all four clusters, we found strong chemisorption energy of CO\(_2\) reachi...
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description | An ab initio density functional study was performed investigating the adsorption of CO\(_2\) on the neutral boron B\(_{n}\) (\(n = 10-13\)) clusters, characterized by planar and quasiplanar ground-state atomic structures. For all four clusters, we found strong chemisorption energy of CO\(_2\) reaching 1.6 eV for B\(_{12}\) at the cluster edge sites with the adsorbed molecule in the plane of the cluster. A configuration with chemisorbed dissociated CO\(_2\) molecule also exists for B\(_{11}\) and B\(_{13}\) clusters. The strong adsorption is due to the bending of the CO\(_2\) molecule, which provides energetically accessible fully in-plane frontier molecular orbitals matching the edge states of the clusters. At the same time, the intrinsic dipole moment of a bent CO\(_2\) molecule facilitates the transfer of excess electronic charge from the cluster edges to the molecule. |
doi_str_mv | 10.48550/arxiv.1901.07214 |
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subjects | Adsorption Bend strength Boron Charge transfer Chemisorption Clusters Dipole moments Molecular orbitals Organic chemistry |
title | Strong chemisorption of CO\(_2\) on B\(_{10}\)-B\(_{13}\) planar-type clusters |
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