Attachment cross-sections of protonated and deprotonated water clusters.
Attachment cross-sections of water molecules onto size selected protonated (H(2)O)(n)H(+) and deprotonated (H(2)O)(n - 1)OH(-) water clusters have been measured in the size range n = 30-140 for 10 eV kinetic energy of the clusters in the laboratory frame. Within our experimental accuracy, the attachment cross-sections are found to have the same magnitude and size dependence for both species. It is shown that electrostatic interactions are likely to play a role even for the largest sizes investigated.
Université de Toulouse, UPS, Laboratoire Collisions Agrégats Réactivité, IRSAMC, F-31062 Toulouse, France and CNRS, UMR 5589, F-31062 Toulouse, France.
Sébastien
S
Zamith
Grégoire
G
de Tournadre
Pierre
P
Labastie
Jean-Marc
JM
L'Hermite
D007700:Kinetics; D011522:Protons; D014867:Water / Q000737:chemistry*
D011522:Protons; D014867:Water