Abstract
Mass spectrometry (MS) has been widely used in the molecular mass determination and the structural analysis of organic molecules. Electrospray ionization, matrix-assisted laser desorption ionization (MALDI), and development in the instrumentation made MS an effective tool in polymer and biomolecular analysis. Together with these advances, MS is now widely used for characterizing atomically precise metal nanoclusters. The MS can effectively be used for understanding the size, charge state, composition of core or ligand, and the growth mechanism of metal nanoclusters. Such MS-based investigations of ligand-protected metal clusters, reported in the recent past, are discussed in this Chapter. Luminescent property is strongly associated with the cluster’s electronic properties and can be effectively studied by gas-phase spectroscopy of mass-selected clusters. The progress in instrumentation and technologies related to the MS field can lead to new heights in metal cluster research.
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