Key points are not available for this paper at this time.
Neutral sodium-water clusters are formed in a "pickup" source, injection of a beam of Na atoms into the expansion zone of a pulsed nozzle-jet beam of water vapor seeded into an argon carrier gas. They are detected by near-uv one-photon ionization with a pulsed laser and time-of-flight mass spectroscopy. Na ({H₂O) }₍-cluster-ion signals up to n=12 are seen, n=4 showing a very pronounced abundance. The ionization potential of NaOH₂ is determined to be 4. 379 0. 002 eV.
Schulz et al. (Mon,) studied this question.