Aromaticity in a Surface Deposited Cluster: Pd$_4$ on TiO$_2$ (110)

Details Aromaticity in a Surface Deposited Cluster: Pd$_4$ on TiO$_2$ (110) Aromaticity in a Surface Deposited Cluster: Pd$_4$ on TiO$_2$ (110)

2011-12-17

arxiv.org/abs/1112.4032v1

J. Phys. Chem. Lett., 3, 751 (2012)

Physics

Condensed Matter

Materials Science

4 pages, 3 figures

Scientific paper

10.1021/jz300158s

We report the presence of \sigma-aromaticity in a surface deposited cluster, Pd$_4$ on TiO$_2$ (110). In the gas phase, Pd$_4$ adopts a tetrahedral structure. However, surface binding promotes a flat, \sigma-aromatic cluster. This is the first time aromaticity is found in surface deposited clusters. Systems of this type emerge as a promising class of catalyst, and so realization of aromaticity in them may help to rationalize their reactivity and catalytic properties, as a function of cluster size and composition.

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