Ion mobility spectrometry coupled to mass spectrometry provides a powerful tool to explore
the three-dimensional shape of polyatomic ions. Applications include the investigation of …

Ion mobility measurements are one of the few methods presently available that can directly
probe the structures of relatively large molecules in the gas phase. Here we review the …

Over the last decade, scientific and engineering interests have been shifting from
conventional ion mobility spectrometry (IMS) to field asymmetric waveform ion mobility …

The fact that the melting points of nanoparticles are always lower than those of the
corresponding bulk material is a paradigm supported by extensive experimental data for a …

We describe a novel method for the structural optimization of molecular systems. Similar to
genetic algorithms (GA), our approach involves an evolving population in which new …

Ab initio all-electron molecular-orbital calculations have been carried out to study the
structure and relative stability of small silicon clusters (Si n, n= 7–11). A number of low …

Mobility measurements have been established over the last decade as a versatile and
powerful tool for the structural characterization of gas-phase ions. This approach has been …

The prolate-to-spherical shape transition in Group IV clusters has been a puzzle since its
discovery over a decade ago. Here we explain this phenomenon by elucidating the …

High-resolution ion mobility measurements have been performed for silicon cluster anions
and cations, Sin and Sin, n 6–55. New isomers have been resolved for every cluster size …

A combination of the best available theoretical techniques for energetics, dynamics, and
thermodynamics is employed in an extensive study of Si n (n= 20, 25) clusters. For T= 0 we …