Structural transitions of tin clusters: Snn (n = 34-44)

► Snn (n = 34-44) transform from a prolate for Sn34,35 to a 'Y' type for Sn36-39 to a plate for Sn40-44. ► Structural transitions would easily occur at cross points of the binding energy curves. ► Snn (n = 34-44) favor an assembly motif composed of Sn9 and Sn10.