Structure and stability of Si6Li6: Aromaticity vs polarizability
2010
Abstract Detailed exploration of the Si 6 Li 6 potential energy surface shows that the most stable form of such cluster is not planar, it is a tridimensional structure formed by a silicon tetrahedron interacting with a silicon dimer through four lithium atoms. In order to understand stability, both polarizability and aromaticity were used. Given that the most stable structure is non-planar, aromaticity evaluation is not easy. Gratifyingly, the minimum polarizability principle is satisfied.
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