Mass spectra of doubly charged mercury clusters (m/z=30-1065) were investigated by secondary ion mass spectrometry. Positively charged ions were generated from an amalgam of mercury and silver by bombardment with a xenon ion beam and mass analysis by a grand-scale sector type mass spectrometer. Hg n 2+, n=1-10 and Hg n +, n =1- 5 were observed. Some doubly charged mercury clusters, (Hg n 2+) survived at least for 0.1 ms.
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Ito, H., Sakurai, T., Matsuo, T. et al. Observation of doubly charged mercury cluster ions Hg n 2+, n=1-10 using secondary ion mass spectrometry. Z Phys D - Atoms, Molecules and Clusters 40, 102–104 (1997). https://doi.org/10.1007/s004600050168